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Xu X, Chen Y, Zhang Z, Chen T, Li B, Tian S. Set1/COMPASS regulates growth, pathogenicity, and patulin biosynthesis of Penicillium expansum via H3K4 methylation and the interaction with PeVelB. J Adv Res 2024; 62:47-57. [PMID: 37802147 DOI: 10.1016/j.jare.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/21/2023] [Accepted: 10/02/2023] [Indexed: 10/08/2023] Open
Abstract
INTRODUCTION Penicillium expansum is a harmful plant fungal pathogen that causes blue mold disease and produces mycotoxin patulin, leading to huge economic losses and food safety hazard. Set1 associated complex Set1/COMPASS deposits the methylation at lysine 4 of histone H3, which is associated with gene expression in diverse biological processes of fungi. However, the function and underlying mechanisms of Set1/COMPASS are poorly defined in P. expansum. OBJECTIVES The study aimed to identify Set1/COMPASS and investigate its regulation mechanisms on growth, pathogenicity, and patulin biosynthesis of P. expansum. METHODS Analyses of phylogenetic relationship, conserved structural domain, and gene deletion were used to identify components of Set1/COMPASS. Phenotype analysis and stress tolerance test of gene deletion mutants were conducted to analyze the function of these components. Yeast two-hybrid, Co-Immunoprecipitation (Co-IP), and point mutation were performed to verify the protein interaction. Western blot was conducted for detection of H3K4 methylation levels. RESULTS P. expansum owns six components of Set1/COMPASS besides PeSet1. Absence of each component resulted in reduction of H3K4 methylation levels and impaired growth, pathogenicity, and patulin biosynthesis, as well as altered stress responses of P. expansum. One component PeBre2p was found to interact with the conserved global regulator PeVelB (VelvetLike protein B) at Asp294 of PeBre2p. This interaction affected fungal growth and utilization of fructose, lactose, glycine, and proline in P. expansum. CONCLUSION This study revealed the important roles of Set1/COMPASS in P. expansum and clarified for the first time the combined regulation of PeBre2p and PeVelB in fungal growth and nutrition utilization. These results will provide potential targets for the control of blue mold disease.
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Affiliation(s)
- Xiaodi Xu
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing Key Laboratory of Fruits and Vegetable Storage and Processing, Institute of Agri-food Processing and Nutrition, Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yong Chen
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China
| | - Zhanquan Zhang
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tong Chen
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China
| | - Boqiang Li
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China.
| | - Shiping Tian
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; China National Botanical Garden, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Ban GI, Puviindran V, Xiang Y, Nadesan P, Tang J, Ou J, Guardino N, Nakagawa M, Browne M, Wallace A, Ishikawa K, Shimada E, Martin JT, Diao Y, Kirsch DG, Alman BA. The COMPASS complex maintains the metastatic capacity imparted by a subpopulation of cells in UPS. iScience 2024; 27:110187. [PMID: 38989451 PMCID: PMC11233968 DOI: 10.1016/j.isci.2024.110187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/20/2024] [Accepted: 06/03/2024] [Indexed: 07/12/2024] Open
Abstract
Intratumoral heterogeneity is common in cancer, particularly in sarcomas like undifferentiated pleomorphic sarcoma (UPS), where individual cells demonstrate a high degree of cytogenic diversity. Previous studies showed that a small subset of cells within UPS, known as the metastatic clone (MC), as responsible for metastasis. Using a CRISPR-based genomic screen in-vivo, we identified the COMPASS complex member Setd1a as a key regulator maintaining the metastatic phenotype of the MC in murine UPS. Depletion of Setd1a inhibited metastasis development in the MC. Transcriptome and chromatin sequencing revealed COMPASS complex target genes in UPS, such as Cxcl10, downregulated in the MC. Deleting Cxcl10 in non-MC cells increased their metastatic potential. Treating mice with human UPS xenografts with a COMPASS complex inhibitor suppressed metastasis without affecting tumor growth in the primary tumor. Our data identified an epigenetic program in a subpopulation of sarcoma cells that maintains metastatic potential.
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Affiliation(s)
- Ga I. Ban
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Vijitha Puviindran
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Yu Xiang
- Department of Cell Biology and Duke Regeneration Center, Duke University School of Medicine, Durham, NC, USA
| | - Puvi Nadesan
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Jackie Tang
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Jianhong Ou
- Department of Cell Biology and Duke Regeneration Center, Duke University School of Medicine, Durham, NC, USA
| | - Nicholas Guardino
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Makoto Nakagawa
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - MaKenna Browne
- Department of Cell Biology and Duke Regeneration Center, Duke University School of Medicine, Durham, NC, USA
| | - Asjah Wallace
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Koji Ishikawa
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Eijiro Shimada
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - John T. Martin
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Yarui Diao
- Department of Cell Biology and Duke Regeneration Center, Duke University School of Medicine, Durham, NC, USA
| | - David G. Kirsch
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC, USA
- The Princes Margaret Cancer Centre, Department of Radiation Oncology, University Health Network and the University of Toronto, Toronto, ON, Canada
| | - Benjamin A. Alman
- Department of Orthopedic Surgery, Duke University School of Medicine, Durham, NC, USA
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Grégoire S, Grégoire J, Yang Y, Capitani S, Joshi M, Sarvan S, Zaker A, Ning Z, Figeys D, Ulrich K, Brunzelle JS, Mer A, Couture JF. Structural insights into an atypical histone binding mechanism by a PHD finger. Structure 2024:S0969-2126(24)00235-1. [PMID: 39029460 DOI: 10.1016/j.str.2024.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/30/2024] [Accepted: 06/24/2024] [Indexed: 07/21/2024]
Abstract
Complex associating with SET1 (COMPASS) is a histone H3K4 tri-methyltransferase controlled by several regulatory subunits including CXXC zinc finger protein 1 (Cfp1). Prior studies established the structural underpinnings controlling H3K4me3 recognition by the PHD domain of Cfp1's yeast homolog (Spp1). However, metazoans Cfp1PHD lacks structural elements important for H3K4me3 stabilization in Spp1, suggesting that in metazoans, Cfp1PHD domain binds H3K4me3 differently. The structure of Cfp1PHD in complex with H3K4me3 shows unique features such as non-canonical coordination of the first zinc atom and a disulfide bond forcing the reorientation of Cfp1PHD N-terminus, thereby leading to an atypical H3K4me3 binding pocket. This configuration minimizes Cfp1PHD reliance on canonical residues important for histone binding functions of other PHD domains. Cancer-related mutations in Cfp1PHD impair H3K4me3 binding, implying a potential impact on epigenetic signaling. Our work highlights a potential diversification of PHD histone binding modes and the impact of cancer mutations on Cfp1 functions.
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Affiliation(s)
- Sabrina Grégoire
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Janelle Grégoire
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Yidai Yang
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Sabrina Capitani
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Monika Joshi
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Sabina Sarvan
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Arvin Zaker
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Zhibin Ning
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Daniel Figeys
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Kathrin Ulrich
- Institute of Biochemistry, Cellular Biochemistry, University of Cologne, 50674 Cologne, Germany
| | - Joseph S Brunzelle
- Life Sciences Collaborative Access Team, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Arvind Mer
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Jean-Francois Couture
- Ottawa Institute of Systems Biology, Ottawa, Ontario K1H 8M5, Canada; Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada.
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Hoshii T, Kikuchi S, Kujirai T, Masuda T, Ito T, Yasuda S, Matsumoto M, Rahmutulla B, Fukuyo M, Murata T, Kurumizaka H, Kaneda A. BOD1L mediates chromatin binding and non-canonical function of H3K4 methyltransferase SETD1A. Nucleic Acids Res 2024:gkae605. [PMID: 38989615 DOI: 10.1093/nar/gkae605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/04/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024] Open
Abstract
The H3K4 methyltransferase SETD1A plays an essential role in both development and cancer. However, essential components involved in SETD1A chromatin binding remain unclear. Here, we discovered that BOD1L exhibits the highest correlated SETD1A co-dependency in human cancer cell lines. BOD1L knockout reduces leukemia cells in vitro and in vivo, and mimics the transcriptional profiles observed in SETD1A knockout cells. The loss of BOD1L immediately reduced SETD1A distribution at transcriptional start sites (TSS), induced transcriptional elongation defect, and increased the RNA polymerase II content at TSS; however, it did not reduce H3K4me3. The Shg1 domain of BOD1L has a DNA binding ability, and a tryptophan residue (W104) in the domain recruits SETD1A to chromatin through the association with SETD1A FLOS domain. In addition, the BOD1L-SETD1A complex associates with transcriptional regulators, including E2Fs. These results reveal that BOD1L mediates chromatin and SETD1A, and regulates the non-canonical function of SETD1A in transcription.
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Affiliation(s)
- Takayuki Hoshii
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
| | - Sota Kikuchi
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
| | - Tomoya Kujirai
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Takeshi Masuda
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0017, Japan
| | - Tomoko Ito
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Satoshi Yasuda
- Department of Chemistry, Graduate School of Science, Chiba University, Chiba-shi, Chiba 263-8522, Japan
| | - Makoto Matsumoto
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
| | - Bahityar Rahmutulla
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
| | - Masaki Fukuyo
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
| | - Takeshi Murata
- Department of Chemistry, Graduate School of Science, Chiba University, Chiba-shi, Chiba 263-8522, Japan
| | - Hitoshi Kurumizaka
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Atsushi Kaneda
- Department of Molecular Oncology, Graduate School of Medicine, Chiba University, Chiba-shi, Chiba 260-8670, Japan
- Health and Disease Omics Center, Chiba University, Chiba-shi, Chiba 260-8670, Japan
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5
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Wang H, Helin K. Roles of H3K4 methylation in biology and disease. Trends Cell Biol 2024:S0962-8924(24)00115-6. [PMID: 38909006 DOI: 10.1016/j.tcb.2024.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/13/2024] [Accepted: 06/03/2024] [Indexed: 06/24/2024]
Abstract
Epigenetic modifications, including posttranslational modifications of histones, are closely linked to transcriptional regulation. Trimethylated H3 lysine 4 (H3K4me3) is one of the most studied histone modifications owing to its enrichment at the start sites of transcription and its association with gene expression and processes determining cell fate, development, and disease. In this review, we focus on recent studies that have yielded insights into how levels and patterns of H3K4me3 are regulated, how H3K4me3 contributes to the regulation of specific phases of transcription such as RNA polymerase II initiation, pause-release, heterogeneity, and consistency. The conclusion from these studies is that H3K4me3 by itself regulates gene expression and its precise regulation is essential for normal development and preventing disease.
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Affiliation(s)
- Hua Wang
- Peking University International Cancer Institute, Peking University Cancer Hospital and Institute, State Key Laboratory of Molecular Oncology, Peking University Health Science Center, Beijing, 100191, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
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6
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Nie H, Kong X, Song X, Guo X, Li Z, Fan C, Zhai B, Yang X, Wang Y. Roles of histone post-translational modifications in meiosis†. Biol Reprod 2024; 110:648-659. [PMID: 38224305 DOI: 10.1093/biolre/ioae011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024] Open
Abstract
Histone post-translational modifications, such as phosphorylation, methylation, acetylation, and ubiquitination, play vital roles in various chromatin-based cellular processes. Meiosis is crucial for organisms that depend on sexual reproduction to produce haploid gametes, during which chromatin undergoes intricate conformational changes. An increasing body of evidence is clarifying the essential roles of histone post-translational modifications during meiotic divisions. In this review, we concentrate on the post-translational modifications of H2A, H2B, H3, and H4, as well as the linker histone H1, that are required for meiosis, and summarize recent progress in understanding how these modifications influence diverse meiotic events. Finally, challenges and exciting open questions for future research in this field are discussed. Summary Sentence Diverse histone post-translational modifications exert important effects on the meiotic cell cycle and these "histone codes" in meiosis might lead to the development of novel therapeutic strategies against reproductive diseases.
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Affiliation(s)
- Hui Nie
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Xueyu Kong
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Xiaoyu Song
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Xiaoyu Guo
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Zhanyu Li
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Cunxian Fan
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Binyuan Zhai
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Xiao Yang
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
| | - Ying Wang
- Center for Cell Structure and Function, Shandong Provincial Key Laboratory of Animal Resistance Biology, College of Life Sciences, Shandong Normal University, Jinan, Shandong, China
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Ding Y, Zhang C, Zuo Q, Jin K, Li B. lncCPSET1 acts as a scaffold for MLL2/COMPASS to regulate Bmp4 and promote the formation of chicken primordial germ cells. Mol Genet Genomics 2024; 299:41. [PMID: 38551742 DOI: 10.1007/s00438-024-02127-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 02/15/2024] [Indexed: 04/02/2024]
Abstract
Primordial germ cells (PGCs) are the ancestors of female and male germ cells. Recent studies have shown that long non-coding RNA (lncRNA) and histone methylation are key epigenetic factors affecting PGC formation; however, their joint regulatory mechanisms have rarely been studied. Here, we explored the mechanism by which lncCPSET1 and H3K4me2 synergistically regulate the formation of chicken PGCs for the first time. Combined with chromatin immunoprecipitation (CHIP) sequencing and RNA-seq of PGCs transfected with the lncCPSET1 overexpression vector, GO annotation and KEGG enrichment analysis revealed that Wnt and TGF-β signaling pathways were significantly enriched, and Fzd2, Id1, Id4, and Bmp4 were identified as candidate genes. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) showed that ASH2L, DPY30, WDR5, and RBBP5 overexpression significantly increased the expression of Bmp4, which was up-regulated after lncCPSET1 overexpression as well. It indicated that Bmp4 is a target gene co-regulated by lncCPSET1 and MLL2/COMPASS. Interestingly, co-immunoprecipitation results showed that ASH2L, DPY30 and WDR5 combined and RBBP5 weakly combined with DPY30 and WDR5. lncCPSET1 overexpression significantly increased Dpy30 expression and co-immunoprecipitation showed that interference/overexpression of lncCPSET1 did not affect the binding between the proteins in the complexes, but interference with lncCPSET1 inhibited DPY30 expression, which was confirmed by RNA immunoprecipitation that lncCPSET1 binds to DPY30. Additionally, CHIP-qPCR results showed that DPY30 enriched in the Bmp4 promoter region promoted its transcription, thus promoting the formation of PGCs. This study demonstrated that lncCPSET1 and H3K4me2 synergistically promote PGC formation, providing a reference for the study of the regulatory mechanisms between lncRNA and histone methylation, as well as a molecular basis for elucidating the formation mechanism of PGCs in chickens.
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Affiliation(s)
- Ying Ding
- Key Laboratory of Animal Genetics, Breeding and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, 88 South University Ave, Yangzhou, Jiangsu, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Chen Zhang
- Key Laboratory of Animal Genetics, Breeding and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, 88 South University Ave, Yangzhou, Jiangsu, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
- RNA Medicine Center, International Institutes of Medicine, Zhejiang University, Hangzhou, China
| | - Qisheng Zuo
- Key Laboratory of Animal Genetics, Breeding and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, 88 South University Ave, Yangzhou, Jiangsu, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Kai Jin
- Key Laboratory of Animal Genetics, Breeding and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, 88 South University Ave, Yangzhou, Jiangsu, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou University, Yangzhou, 225009, China
| | - Bichun Li
- Key Laboratory of Animal Genetics, Breeding and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, 88 South University Ave, Yangzhou, Jiangsu, 225009, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China.
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Zhang B, Wang Z, Dai X, Gao J, Zhao J, Ma R, Chen Y, Sun Y, Ma H, Li S, Zhou C, Wang JP, Li W. A COMPASS histone H3K4 trimethyltransferase pentamer transactivates drought tolerance and growth/biomass production in Populus trichocarpa. THE NEW PHYTOLOGIST 2024; 241:1950-1972. [PMID: 38095236 DOI: 10.1111/nph.19481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/22/2023] [Indexed: 02/09/2024]
Abstract
Histone H3 lysine-4 trimethylation (H3K4me3) activating drought-responsive genes in plants for drought adaptation has long been established, but the underlying regulatory mechanisms are unknown. Here, using yeast two-hybrid, bimolecular fluorescence complementation, biochemical analyses, transient and CRISPR-mediated transgenesis in Populus trichocarpa, we unveiled in this adaptation a regulatory interplay between chromatin regulation and gene transactivation mediated by an epigenetic determinant, a PtrSDG2-1-PtrCOMPASS (complex proteins associated with Set1)-like H3K4me3 complex, PtrSDG2-1-PtrWDR5a-1-PtrRbBP5-1-PtrAsh2-2 (PtrSWRA). Under drought conditions, a transcription factor PtrAREB1-2 interacts with PtrSWRA, forming a PtrSWRA-PtrAREB1-2 pentamer, to recruit PtrSWRA to specific promoter elements of drought-tolerant genes, such as PtrHox2, PtrHox46, and PtrHox52, for depositing H3K4me3 to promote and maintain activated state of such genes for tolerance. CRISPR-edited defects in the pentamer impaired drought tolerance and elevated expression of PtrHox2, PtrHox46, or PtrHox52 improved the tolerance as well as growth in P. trichocarpa. Our findings revealed the identity of the underlying H3K4 trimethyltransferase and its interactive arrangement with the COMPASS for catalysis specificity and efficiency. Furthermore, our study uncovered how the H3K4 trimethyltransferase-COMPASS complex is recruited to the effector genes for elevating H3K4me3 marks for improved drought tolerance and growth/biomass production in plants.
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Affiliation(s)
- Baofeng Zhang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Zhuwen Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Xiufang Dai
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Jinghui Gao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Jinfeng Zhao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Rong Ma
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Yanjie Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Yi Sun
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Hongyan Ma
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Shuang Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Chenguang Zhou
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
| | - Jack P Wang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, 27695, USA
| | - Wei Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, China
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Muhammad A, Sarkadi Z, van Emden T, Mazumder A, Capella M, Fekete G, Sreechakram VNS, Al-Sady B, Papp B, Barrales RR, Braun S. A systematic quantitative approach comprehensively defines domain-specific functional pathways linked to Schizosaccharomyces pombe heterochromatin regulation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.13.579970. [PMID: 38405799 PMCID: PMC10888830 DOI: 10.1101/2024.02.13.579970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Heterochromatin plays a critical role in regulating gene expression and maintaining genome integrity. While structural and enzymatic components have been linked to heterochromatin establishment, a comprehensive view of the underlying pathways at diverse heterochromatin domains remains elusive. Here, we developed a systematic approach to identify factors involved in heterochromatin silencing at pericentromeres, subtelomeres, and the silent mating type locus in Schizosaccharomyces pombe. Using quantitative measures, iterative genetic screening, and domain-specific heterochromatin reporters, we identified 369 mutants with different degrees of reduced or enhanced silencing. As expected, mutations in the core heterochromatin machinery globally decreased silencing. However, most other mutants exhibited distinct qualitative and quantitative profiles that indicate domain-specific functions. For example, decreased mating type silencing was linked to mutations in heterochromatin maintenance genes, while compromised subtelomere silencing was associated with metabolic pathways. Furthermore, similar phenotypic profiles revealed shared functions for subunits within complexes. We also discovered that the uncharacterized protein Dhm2 plays a crucial role in maintaining constitutive and facultative heterochromatin, while its absence caused phenotypes akin to DNA replication-deficient mutants. Collectively, our systematic approach unveiled a landscape of domain-specific heterochromatin regulators controlling distinct states and identified Dhm2 as a previously unknown factor linked to heterochromatin inheritance and replication fidelity.
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Affiliation(s)
- Abubakar Muhammad
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- International Max Planck Research School for Molecular and Cellular Life Sciences, Planegg-Martinsried, Germany
| | - Zsuzsa Sarkadi
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- HCEMM-BRC Metabolic Systems Biology Lab, Szeged, Hungary
| | - Thomas van Emden
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- International Max Planck Research School for Molecular and Cellular Life Sciences, Planegg-Martinsried, Germany
| | - Agnisrota Mazumder
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
| | - Matias Capella
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- Present address: Instituto de Agrobiotecnología del Litoral, CONICET, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Gergely Fekete
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- HCEMM-BRC Metabolic Systems Biology Lab, Szeged, Hungary
| | - Vishnu N Suma Sreechakram
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
| | - Bassem Al-Sady
- Department of Microbiology & Immunology, George Williams Hooper Foundation, University of California San Francisco, San Francisco, California, United States of America
| | - Balázs Papp
- Synthetic and Systems Biology Unit, Institute of Biochemistry, HUN-REN Biological Research Centre, Szeged, Hungary
- HCEMM-BRC Metabolic Systems Biology Lab, Szeged, Hungary
| | - Ramón Ramos Barrales
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- Present address: Centro Andaluz de Biología del Desarrollo (CABD), Universidad Pablo de Olavide-Consejo Superior de Investigaciones Científicas-Junta de Andalucía, Seville, Spain
| | - Sigurd Braun
- Institute for Genetics, Justus-Liebig-University Giessen, Giessen, Germany
- BioMedical Center (BMC), Division of Physiological Chemistry, Faculty of Medicine, LMU Munich, Planegg-Martinsried, Germany
- International Max Planck Research School for Molecular and Cellular Life Sciences, Planegg-Martinsried, Germany
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10
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Liu H, Marayati BF, de la Cerda D, Lemezis BM, Gao J, Song Q, Chen M, Reid KZ. The Cross-Regulation Between Set1, Clr4, and Lsd1/2 in Schizosaccharomyces pombe. PLoS Genet 2024; 20:e1011107. [PMID: 38181050 PMCID: PMC10795994 DOI: 10.1371/journal.pgen.1011107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 01/18/2024] [Accepted: 12/12/2023] [Indexed: 01/07/2024] Open
Abstract
Eukaryotic chromatin is organized into either silenced heterochromatin or relaxed euchromatin regions, which controls the accessibility of transcriptional machinery and thus regulates gene expression. In fission yeast, Schizosaccharomyces pombe, Set1 is the sole H3K4 methyltransferase and is mainly enriched at the promoters of actively transcribed genes. In contrast, Clr4 methyltransferase initiates H3K9 methylation, which has long been regarded as a hallmark of heterochromatic silencing. Lsd1 and Lsd2 are two highly conserved H3K4 and H3K9 demethylases. As these histone-modifying enzymes perform critical roles in maintaining histone methylation patterns and, consequently, gene expression profiles, cross-regulations among these enzymes are part of the complex regulatory networks. Thus, elucidating the mechanisms that govern their signaling and mutual regulations remains crucial. Here, we demonstrated that C-terminal truncation mutants, lsd1-ΔHMG and lsd2-ΔC, do not compromise the integrity of the Lsd1/2 complex but impair their chromatin-binding capacity at the promoter region of target genomic loci. We identified protein-protein interactions between Lsd1/2 and Raf2 or Swd2, which are the subunits of the Clr4 complex (CLRC) and Set1-associated complex (COMPASS), respectively. We showed that Clr4 and Set1 modulate the protein levels of Lsd1 and Lsd2 in opposite ways through the ubiquitin-proteasome-dependent pathway. During heat stress, the protein levels of Lsd1 and Lsd2 are upregulated in a Set1-dependent manner. The increase in protein levels is crucial for differential gene expression under stress conditions. Together, our results support a cross-regulatory model by which Set1 and Clr4 methyltransferases control the protein levels of Lsd1/2 demethylases to shape the dynamic chromatin landscape.
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Affiliation(s)
- Haoran Liu
- Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Bahjat Fadi Marayati
- Department of Biochemistry, Duke University School of Medicine, Durham, North Carolina, United States of America
| | - David de la Cerda
- Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Brendan Matthew Lemezis
- Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Jieyu Gao
- Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Qianqian Song
- Department of Health Outcomes and Biomedical Informatics, University of Florida, Gainesville, Florida, United States of America
| | - Minghan Chen
- Department of Computer Science, Wake Forest University, Winston-Salem, North Carolina, United States of America
| | - Ke Zhang Reid
- Department of Biology, Wake Forest University, Winston-Salem, North Carolina, United States of America
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11
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Cho US. The Core Complex of Yeast COMPASS and Human Mixed-Lineage Leukemia (MLL), Structure, Function, and Recognition of the Nucleosome. Subcell Biochem 2024; 104:101-117. [PMID: 38963485 DOI: 10.1007/978-3-031-58843-3_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Yeast COMPASS (complex of proteins associated with Set1) and human MLL (mixed-lineage leukemia) complexes are histone H3 lysine 4 methyltransferases with critical roles in gene regulation and embryonic development. Both complexes share a conserved C-terminal SET domain, responsible for catalyzing histone H3 K4 methylation on nucleosomes. Notably, their catalytic activity toward nucleosomes is enhanced and optimized with assembly of auxiliary subunits. In this review, we aim to illustrate the recent X-ray and cryo-EM structures of yeast COMPASS and human MLL1 core complexes bound to either unmodified nucleosome core particle (NCP) or H2B mono-ubiquitinated NCP (H2Bub.NCP). We further delineate how each auxiliary component of the complex contributes to the NCP and ubiquitin recognition to maximize the methyltransferase activity.
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Affiliation(s)
- Uhn-Soo Cho
- Department of Biological Chemistry, University of Michigan, Ann Arbor, MI, USA.
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12
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Hao J, Huang J, Hua C, Zuo Y, Yu W, Wu X, Li L, Xue G, Wan X, Ru L, Guo Z, Han S, Deng W, Lin F, Guo W. A novel TOX3-WDR5-ABCG2 signaling axis regulates the progression of colorectal cancer by accelerating stem-like traits and chemoresistance. PLoS Biol 2023; 21:e3002256. [PMID: 37708089 PMCID: PMC10501593 DOI: 10.1371/journal.pbio.3002256] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 07/17/2023] [Indexed: 09/16/2023] Open
Abstract
The eradication of cancer stem cells (CSCs) with drug resistance confers the probability of local tumor control after chemotherapy or targeted therapy. As the main drug resistance marker, ABCG2 is also critical for colorectal cancer (CRC) evolution, in particular cancer stem-like traits expansion. Hitherto, the knowledge about the expression regulation of ABCG2, in particular its upstream transcriptional regulatory mechanisms, remains limited in cancer, including CRC. Here, ABCG2 was found to be markedly up-regulated in CRC CSCs (cCSCs) expansion and chemo-resistant CRC tissues and closely associated with CRC recurrence. Mechanistically, TOX3 was identified as a specific transcriptional factor to drive ABCG2 expression and subsequent cCSCs expansion and chemoresistance by binding to -261 to -141 segments of the ABCG2 promoter region. Moreover, we found that TOX3 recruited WDR5 to promote tri-methylation of H3K4 at the ABCG2 promoter in cCSCs, which further confers stem-like traits and chemoresistance to CRC by co-regulating the transcription of ABCG2. In line with this observation, TOX3, WDR5, and ABCG2 showed abnormal activation in chemo-resistant tumor tissues of in situ CRC mouse model and clinical investigation further demonstrated the comprehensive assessment of TOX3, WDR5, and ABCG2 could be a more efficient strategy for survival prediction of CRC patients with recurrence or metastasis. Thus, our study found that TOX3-WDR5/ABCG2 signaling axis plays a critical role in regulating CRC stem-like traits and chemoresistance, and a combination of chemotherapy with WDR5 inhibitors may induce synthetic lethality in ABCG2-deregulated tumors.
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Affiliation(s)
- Jiaojiao Hao
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Jinsheng Huang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Chunyu Hua
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Yan Zuo
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Wendan Yu
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Xiaojun Wu
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Liren Li
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Guoqing Xue
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Xinyu Wan
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Liyuan Ru
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Ziyue Guo
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Shilong Han
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Fei Lin
- Department of Oncology, Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine; The Affiliated Nanhai Hospital of Traditional Chinese Medicine of Jinan University, Foshan, China
| | - Wei Guo
- Institute of Cancer Stem Cells & The First Affiliated Hospital, Dalian Medical University, Dalian, China
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13
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Xie A, Ma Z, Wang J, Zhang Y, Chen Y, Yang C, Chen J, Peng J. Upf3a but not Upf1 mediates the genetic compensation response induced by leg1 deleterious mutations in an H3K4me3-independent manner. Cell Discov 2023; 9:63. [PMID: 37369707 DOI: 10.1038/s41421-023-00550-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 03/29/2023] [Indexed: 06/29/2023] Open
Abstract
Genetic compensation responses (GCRs) can be induced by deleterious mutations in living organisms in order to maintain genetic robustness. One type of GCRs, homology-dependent GCR (HDGCR), involves transcriptional activation of one or more homologous genes related to the mutated gene. In zebrafish, ~80% of the genetic mutants produced by gene editing technology failed to show obvious phenotypes. The HDGCR has been proposed to be one of the main reasons for this phenomenon. It is triggered by mutant mRNA bearing a premature termination codon and has been suggested to depend on components of both the nonsense mRNA-mediated degradation (NMD) pathway and the complex of proteins associated with Set1 (COMPASS). However, exactly which specific NMD factor is required for HDGCR remains disputed. Here, zebrafish leg1 deleterious mutants are adopted as a model to distinguish the role of the NMD factors Upf1 and Upf3a in HDGCR. Four single mutant lines and three double mutant lines were produced. The RNA-seq data from 71 samples and the ULI-NChIP-seq data from 8 samples were then analyzed to study the HDGCR in leg1 mutants. Our results provide strong evidence that Upf3a, but not Upf1, is essential for the HDGCR induced by nonsense mutations in leg1 genes where H3K4me3 enrichment appears not to be a prerequisite. We also show that Upf3a is responsible for correcting the expression of hundreds of genes that would otherwise be dysregulated in the leg1 deleterious mutant.
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Affiliation(s)
- Aixuan Xie
- 1MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhipeng Ma
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Jinyang Wang
- 1MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yuxi Zhang
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yayue Chen
- 1MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Chun Yang
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jun Chen
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Jinrong Peng
- 1MOE Key Laboratory of Biosystems Homeostasis & Protection, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
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14
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Liu R, Chen X, Zhao F, Jiang Y, Lu Z, Ji H, Feng Y, Li J, Zhang H, Zheng J, Zhang J, Zhao Y. The COMPASS Complex Regulates Fungal Development and Virulence through Histone Crosstalk in the Fungal Pathogen Cryptococcus neoformans. J Fungi (Basel) 2023; 9:672. [PMID: 37367608 DOI: 10.3390/jof9060672] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/07/2023] [Accepted: 06/10/2023] [Indexed: 06/28/2023] Open
Abstract
The Complex of Proteins Associated with Set1 (COMPASS) methylates lysine K4 on histone H3 (H3K4) and is conserved from yeast to humans. Its subunits and regulatory roles in the meningitis-causing fungal pathogen Cryptococcus neoformans remain unknown. Here we identified the core subunits of the COMPASS complex in C. neoformans and C. deneoformans and confirmed their conserved roles in H3K4 methylation. Through AlphaFold modeling, we found that Set1, Bre2, Swd1, and Swd3 form the catalytic core of the COMPASS complex and regulate the cryptococcal yeast-to-hypha transition, thermal tolerance, and virulence. The COMPASS complex-mediated histone H3K4 methylation requires H2B mono-ubiquitination by Rad6/Bre1 and the Paf1 complex in order to activate the expression of genes specific for the yeast-to-hypha transition in C. deneoformans. Taken together, our findings demonstrate that putative COMPASS subunits function as a unified complex, contributing to cryptococcal development and virulence.
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Affiliation(s)
- Ruoyan Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaoyu Chen
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Fujie Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yixuan Jiang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhenguo Lu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Huining Ji
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuanyuan Feng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junqiang Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Heng Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Jianting Zheng
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China
- Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jing Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Youbao Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
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15
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Deshpande N, Bryk M. Diverse and dynamic forms of gene regulation by the S. cerevisiae histone methyltransferase Set1. Curr Genet 2023; 69:91-114. [PMID: 37000206 DOI: 10.1007/s00294-023-01265-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/11/2023] [Accepted: 03/14/2023] [Indexed: 04/01/2023]
Abstract
Gene transcription is an essential and highly regulated process. In eukaryotic cells, the structural organization of nucleosomes with DNA wrapped around histone proteins impedes transcription. Chromatin remodelers, transcription factors, co-activators, and histone-modifying enzymes work together to make DNA accessible to RNA polymerase. Histone lysine methylation can positively or negatively regulate gene transcription. Methylation of histone 3 lysine 4 by SET-domain-containing proteins is evolutionarily conserved from yeast to humans. In higher eukaryotes, mutations in SET-domain proteins are associated with defects in the development and segmentation of embryos, skeletal and muscle development, and diseases, including several leukemias. Since histone methyltransferases are evolutionarily conserved, the mechanisms of gene regulation mediated by these enzymes are also conserved. Budding yeast Saccharomyces cerevisiae is an excellent model system to study the impact of histone 3 lysine 4 (H3K4) methylation on eukaryotic gene regulation. Unlike larger eukaryotes, yeast cells have only one enzyme that catalyzes H3K4 methylation, Set1. In this review, we summarize current knowledge about the impact of Set1-catalyzed H3K4 methylation on gene transcription in S. cerevisiae. We describe the COMPASS complex, factors that influence H3K4 methylation, and the roles of Set1 in gene silencing at telomeres and heterochromatin, as well as repression and activation at euchromatic loci. We also discuss proteins that "read" H3K4 methyl marks to regulate transcription and summarize alternate functions for Set1 beyond H3K4 methylation.
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Affiliation(s)
- Neha Deshpande
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Mary Bryk
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA.
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16
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Su WC, Mao XM, Li SY, Luo CY, Fan R, Jiang HF, Zhang LJ, Wang YT, Su GQ, Shen DY. DPY30 Promotes Proliferation and Cell Cycle Progression of Colorectal Cancer Cells via Mediating H3K4 Trimethylation. Int J Med Sci 2023; 20:901-917. [PMID: 37324189 PMCID: PMC10266052 DOI: 10.7150/ijms.80073] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/25/2023] [Indexed: 06/17/2023] Open
Abstract
DPY30, a core subunit of the SET1/MLL histone H3K4 methyltransferase complexes, plays an important role in diverse biological functions through the epigenetic regulation of gene transcription, especially in cancer development. However, its involvement in human colorectal carcinoma (CRC) has not been elucidated yet. Here we demonstrated that DPY30 was overexpressed in CRC tissues, and significantly associated with pathological grading, tumor size, TNM stage, and tumor location. Furthermore, DPY30 knockdown remarkably suppressed the CRC cell proliferation through downregulation of PCNA and Ki67 in vitro and in vivo, simultaneously induced cell cycle arrest at S phase by downregulating Cyclin A2. In the mechanistic study, RNA-Seq analysis revealed that enriched gene ontology of cell proliferation and cell growth was significantly affected. And ChIP result indicated that DPY30 knockdown inhibited H3 lysine 4 trimethylation (H3K4me3) and attenuated interactions between H3K4me3 with PCNA, Ki67 and cyclin A2 respectively, which led to the decrease of H3K4me3 establishment on their promoter regions. Taken together, our results demonstrate overexpression of DPY30 promotes CRC cell proliferation and cell cycle progression by facilitating the transcription of PCNA, Ki67 and cyclin A2 via mediating H3K4me3. It suggests that DPY30 may serve as a potential therapeutic molecular target for CRC.
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Affiliation(s)
- Wei-Chao Su
- Department of Colorectal Tumor Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Xiao-Mei Mao
- School of Pharmaceutical Science and Technology, Suzhou Chien-Shiung Institute of Technology, Suzhou 215411, Jiangsu Province, P.R. China
| | - Si-Yang Li
- Xiamen Cell Therapy Research Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Chun-Ying Luo
- Department of Pathology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi Province, P.R. China
- Medical College, Guangxi University, Nanning 530004, Guangxi Province, P.R. China
| | - Rui Fan
- Xiamen Cell Therapy Research Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Hai-Feng Jiang
- Department of Colorectal Tumor Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Lin-Jun Zhang
- Xiamen Cell Therapy Research Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Ya-Tao Wang
- Department of Colorectal Tumor Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
| | - Guo-Qiang Su
- Department of Colorectal Tumor Surgery, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
- Medical College, Guangxi University, Nanning 530004, Guangxi Province, P.R. China
| | - Dong-Yan Shen
- Xiamen Cell Therapy Research Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, Fujian Province, P.R. China
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17
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Pan X, Hao L, Yang C, Lin H, Wu D, Chen X, Zhang M, Ma D, Wang Y, Fu W, Yao Y, Wang S, Zhuang Z. SWD1 epigenetically chords fungal morphogenesis, aflatoxin biosynthesis, metabolism, and virulence of Aspergillus flavus. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131542. [PMID: 37172387 DOI: 10.1016/j.jhazmat.2023.131542] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 04/17/2023] [Accepted: 04/28/2023] [Indexed: 05/14/2023]
Abstract
As the main producer of aflatoxins, Aspergillus flavus is also one of the most important causes of invasive and non-invasive aspergillosis. Therefore, it is crucial to unravel the regulatory mechanisms of growth, metabolism, and pathogenicity of A. flavus. SWD1 is highly conserved across species for maintaining COMPASS methyltransferase activity, but the bio-function of SWD1 in A. flavus has not been explored. Through genetic analysis, this study revealed that SWD1 is involved in fungal morphogenesis and AFB1 biosynthesis by regulating the orthodox pathways through H3K4me1-3. Stresses sensitivity and crop models analysis revealed that SWD1 is a key regulator for the resistance of A. flavus to adapt to extreme adverse environments and to colonize crop kernels. It also revealed that the WD40 domain and 25 aa highly conserved sequence are indispensable for SWD1 in the regulation of mycotoxin bio-synthesis and fungal virulence. Metabolomic analysis inferred that SWD1 is crucial for the biosynthesis of numerous primary and secondary metabolites, regulates biological functions by reshaping the whole metabolic process, and may inhibit fungal virulence by inducing the apoptosis of mycelia through the inducer sphingosine. This study elucidates the epigenetic mechanism of SWD1 in regulating fungal pathogenicity and mycotoxin biosynthesis, and provides a potential novel target for controlling the virulence of A. flavus.
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Affiliation(s)
- Xiaohua Pan
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Key Laboratory of Propagated Sensation along Meridian, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, China
| | - Ling Hao
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chi Yang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Institute of Edible Mushroom, Fujian Academy of Agricultural Sciences, Fuzhou 350014, China
| | - Hong Lin
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dandan Wu
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xuan Chen
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mengjuan Zhang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Dongmei Ma
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China; College of Animal Sciences (College of Bee Science), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yu Wang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wangzhuo Fu
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yanfang Yao
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shihua Wang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Zhenhong Zhuang
- Key Laboratory of Pathogenic Fungi and Mycotoxins of Fujian Province, Key Laboratory of Biopesticide and Chemical Biology of Education Ministry, Proteomic Research Center, and School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Blatter M, Meylan C, Cléry A, Giambruno R, Nikolaev Y, Heidecker M, Solanki JA, Diaz MO, Gabellini D, Allain FHT. RNA binding induces an allosteric switch in Cyp33 to repress MLL1-mediated transcription. SCIENCE ADVANCES 2023; 9:eadf5330. [PMID: 37075125 PMCID: PMC10115415 DOI: 10.1126/sciadv.adf5330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Mixed-lineage leukemia 1 (MLL1) is a transcription activator of the HOX family, which binds to specific epigenetic marks on histone H3 through its third plant homeodomain (PHD3) domain. Through an unknown mechanism, MLL1 activity is repressed by cyclophilin 33 (Cyp33), which binds to MLL1 PHD3. We determined solution structures of Cyp33 RNA recognition motif (RRM) free, bound to RNA, to MLL1 PHD3, and to both MLL1 and the histone H3 lysine N6-trimethylated. We found that a conserved α helix, amino-terminal to the RRM domain, adopts three different positions facilitating a cascade of binding events. These conformational changes are triggered by Cyp33 RNA binding and ultimately lead to MLL1 release from the histone mark. Together, our mechanistic findings rationalize how Cyp33 binding to MLL1 can switch chromatin to a transcriptional repressive state triggered by RNA binding as a negative feedback loop.
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Affiliation(s)
- Markus Blatter
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
- Corresponding author. (F.H.-T.A.); (M.B.)
| | - Charlotte Meylan
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Antoine Cléry
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Roberto Giambruno
- Gene Expression and Muscular Dystrophy Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Yaroslav Nikolaev
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Michel Heidecker
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
| | - Jessica Arvindbhai Solanki
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University of Chicago Medical Center, University of Chicago, Chicago, IL, USA
| | - Manuel O. Diaz
- Department of Microbiology and Immunology, Stritch School of Medicine, Loyola University of Chicago Medical Center, University of Chicago, Chicago, IL, USA
| | - Davide Gabellini
- Gene Expression and Muscular Dystrophy Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Frédéric H.-T. Allain
- Department of Biology, Institute of Biochemistry, ETH Zurich, 8093 Zurich, Switzerland
- Corresponding author. (F.H.-T.A.); (M.B.)
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19
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Wang H, Fan Z, Shliaha PV, Miele M, Hendrickson RC, Jiang X, Helin K. H3K4me3 regulates RNA polymerase II promoter-proximal pause-release. Nature 2023; 615:339-348. [PMID: 36859550 PMCID: PMC9995272 DOI: 10.1038/s41586-023-05780-8] [Citation(s) in RCA: 95] [Impact Index Per Article: 95.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/02/2023] [Indexed: 03/03/2023]
Abstract
Trimethylation of histone H3 lysine 4 (H3K4me3) is associated with transcriptional start sites and has been proposed to regulate transcription initiation1,2. However, redundant functions of the H3K4 SET1/COMPASS methyltransferase complexes complicate the elucidation of the specific role of H3K4me3 in transcriptional regulation3,4. Here, using mouse embryonic stem cells as a model system, we show that acute ablation of shared subunits of the SET1/COMPASS complexes leads to a complete loss of all H3K4 methylation. Turnover of H3K4me3 occurs more rapidly than that of H3K4me1 and H3K4me2 and is dependent on KDM5 demethylases. Notably, acute loss of H3K4me3 does not have detectable effects on transcriptional initiation but leads to a widespread decrease in transcriptional output, an increase in RNA polymerase II (RNAPII) pausing and slower elongation. We show that H3K4me3 is required for the recruitment of the integrator complex subunit 11 (INTS11), which is essential for the eviction of paused RNAPII and transcriptional elongation. Thus, our study demonstrates a distinct role for H3K4me3 in transcriptional pause-release and elongation rather than transcriptional initiation.
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Affiliation(s)
- Hua Wang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Zheng Fan
- The Institute of Cancer Research, London, United Kingdom
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark
- The Novo Nordisk Foundation Center for Stem Cell Biology (Danstem), University of Copenhagen, Copenhagen, Denmark
| | - Pavel V Shliaha
- Microchemistry and Proteomics Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matthew Miele
- Microchemistry and Proteomics Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ronald C Hendrickson
- Microchemistry and Proteomics Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Xuejun Jiang
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kristian Helin
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- The Institute of Cancer Research, London, United Kingdom.
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, Copenhagen, Denmark.
- The Novo Nordisk Foundation Center for Stem Cell Biology (Danstem), University of Copenhagen, Copenhagen, Denmark.
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20
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Structural insights on the KMT2-NCP interaction. Biochem Soc Trans 2023; 51:427-434. [PMID: 36695549 DOI: 10.1042/bst20221155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/26/2023]
Abstract
The MLL/KMT2 family enzymes are frequently mutated in human cancers and congenital diseases. They deposit the majority of histone 3 lysine 4 (H3K4) mono-, di-, or tri-methylation in mammals and are tightly associated with gene activation. Structural and biochemical studies in recent years provide in-depth understanding of how the MLL1 and homologous yeast SET1 complexes interact with the nucleosome core particle (NCP) and how their activities for H3K4 methylation are regulated by the conserved core components. Here, we will discuss the recent single molecule cryo-EM studies on the MLL1 and ySET1 complexes bound on the NCP. These studies highlight the dynamic regulation of the MLL/SET1 family lysine methyltransferases with unique features as compared with other histone lysine methyltransferases. These studies provide insights for loci-specific regulation of H3K4 methylation states in cells. The mechanistic studies on the MLL1 complex have already led to the development of the MLL1 inhibitors that show efficacy in acute leukemia and metastatic breast cancers. Future studies on the MLL/SET1 family enzymes will continue to bring to light potential therapeutic opportunities.
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21
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Xu X, Chen Y, Li B, Tian S. Histone H3K4 Methyltransferase PeSet1 Regulates Colonization, Patulin Biosynthesis, and Stress Responses of Penicillium expansum. Microbiol Spectr 2023; 11:e0354522. [PMID: 36633412 PMCID: PMC9927251 DOI: 10.1128/spectrum.03545-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 12/18/2022] [Indexed: 01/13/2023] Open
Abstract
Fruit blue mold disease and patulin contamination caused by Penicillium expansum lead to huge economic losses and food safety concerns worldwide. Many genes have been proven to be involved in the regulation of pathogenic and toxigenic processes of P. expansum. Histone H3 lysine 4 (H3K4) methylation is well recognized for its association with chromatin regulation and gene transcription. However, it is not clear whether H3K4 methylation is related to infection and patulin biosynthesis in Penicillium. Here, we characterized PeSet1, which is responsible for H3K4me1/me2/me3 in P. expansum. The deletion of PeSet1 caused severe defects in hyphal growth, conidiation, colonization, patulin biosynthesis, and stress responses. Moreover, we demonstrated that PeSet1 is involved in the regulation of patulin biosynthesis by mediating the expression of patulin cluster genes and crucial global regulatory factors. Likewise, PeSet1 positively regulated key genes in β-1,3-glucan biosynthesis and the reactive oxygen species scavenging process to modulate cell wall integrity and oxidative stress responses, respectively. Collectively, we have proven for the first time the function of Set1 in patulin biosynthesis and the crucial role of Set1 in colonization and stress responses in P. expansum. IMPORTANCE Penicillium expansum is one of the most important plant fungal pathogens, which not only causes blue mold rot in various fruits, leading to huge decay losses, but also produces mycotoxin patulin, posing a threat to human health. Both pathogenesis and patulin biosynthesis in P. expansum are regulated by complex and sophisticated networks. We focused on the epigenetic modification and identified a conserved histone H3K4 methyltransferase PeSet1 in P. expansum. Our work revealed the important role of PeSet1 in growth, development, colonization, patulin production, and stress responses of P. expansum. In particular, we originally described the regulation of Set1 on patulin biosynthetic pathway. These findings will provide new targets for the prevention and control of blue mold disease and patulin contamination.
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Affiliation(s)
- Xiaodi Xu
- Key Laboratory of Plant Resources, The Innovative Academy of Seed Design, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yong Chen
- Key Laboratory of Plant Resources, The Innovative Academy of Seed Design, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Boqiang Li
- Key Laboratory of Plant Resources, The Innovative Academy of Seed Design, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Shiping Tian
- Key Laboratory of Plant Resources, The Innovative Academy of Seed Design, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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22
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Namitz KEW, Tan S, Cosgrove MS. Hierarchical assembly of the MLL1 core complex regulates H3K4 methylation and is dependent on temperature and component concentration. J Biol Chem 2023; 299:102874. [PMID: 36623730 PMCID: PMC9939731 DOI: 10.1016/j.jbc.2023.102874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/30/2022] [Accepted: 12/31/2022] [Indexed: 01/09/2023] Open
Abstract
Enzymes of the mixed lineage leukemia (MLL) family of histone H3 lysine 4 (H3K4) methyltransferases are critical for cellular differentiation and development and are regulated by interaction with a conserved subcomplex consisting of WDR5, RbBP5, Ash2L, and DPY30. While pairwise interactions between complex subunits have been determined, the mechanisms regulating holocomplex assembly are unknown. In this investigation, we systematically characterized the biophysical properties of a reconstituted human MLL1 core complex and found that the MLL1-WDR5 heterodimer interacts with the RbBP5-Ash2L-DPY30 subcomplex in a hierarchical assembly pathway that is highly dependent on concentration and temperature. Surprisingly, we found that the disassembled state is favored at physiological temperature, where the enzyme rapidly becomes irreversibly inactivated, likely because of complex components becoming trapped in nonproductive conformations. Increased protein concentration partially overcomes this thermodynamic barrier for complex assembly, suggesting a potential regulatory mechanism for spatiotemporal control of H3K4 methylation. Together, these results are consistent with the hypothesis that regulated assembly of the MLL1 core complex underlies an important mechanism for establishing different H3K4 methylation states in mammalian genomes.
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Affiliation(s)
- Kevin E W Namitz
- State University of New York (SUNY) Upstate Medical University, Department of Biochemistry and Molecular Biology, Syracuse, NY, USA
| | - Song Tan
- Penn State University, Department of Biochemistry and Molecular Biology, University Park, PA, USA
| | - Michael S Cosgrove
- State University of New York (SUNY) Upstate Medical University, Department of Biochemistry and Molecular Biology, Syracuse, NY, USA.
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23
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Ash2l, an obligatory component of H3K4 methylation complexes, regulates neural crest development. Dev Biol 2022; 492:14-24. [PMID: 36162552 DOI: 10.1016/j.ydbio.2022.09.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/29/2022] [Accepted: 09/20/2022] [Indexed: 02/05/2023]
Abstract
The vertebrate nervous system develops from embryonic neural plate and neural crest. Although genetic mechanisms governing vertebrate neural development have been investigated in depth, epigenetic regulation of this process remains less understood. Redundancy of epigenetic factors and early lethality of animals deficient in critical epigenetic components pose major challenges in characterization of epigenetic factors in vertebrate neural development. In this study, we use the amphibian model Xenopus laevis to investigate the roles of non-redundant, obligatory components of all histone H3K4 activating methylation complexes (COMPASS, also known as SET1/MLL complexes) in early neural development. The two genes that we focus on, Ash2l and Dpy30, regulate mesendodermal differentiation in mouse embryonic stem cells and cause early embryonic lethality when removed from mouse embryos. Using targeted knockdown of the genes in dorsal ectoderm of Xenopus that gives rise to future nervous system, we show here that ash2l and dpy30 are required for neural and neural crest marker expression in Xenopus late neurula embryos but are dispensable for early neural and neural plate border gene expression. Co-immunoprecipitation assays reveal that Dpy30 and Ash2L associate with the neural plate border transcription factors, such as Msx1 and Tfap2a. Chromatin immunoprecipitation (ChIP) assay further demonstrates that Ash2L and the H3K4me3 active histone mark accumulate at the promoter regions of the neural crest gene sox10 in a Tfap2a-dependent manner. Collectively, our data suggest that Ash2l and Dpy30 interact with specific transcription factors to recruit COMPASS complexes to the regulatory regions of neural crest specification genes to control their expression and influence development of the nervous system during vertebrate embryogenesis.
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Parallel functional annotation of cancer-associated missense mutations in histone methyltransferases. Sci Rep 2022; 12:18487. [PMID: 36323913 PMCID: PMC9630446 DOI: 10.1038/s41598-022-23229-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/27/2022] [Indexed: 12/03/2022] Open
Abstract
Using exome sequencing for biomarker discovery and precision medicine requires connecting nucleotide-level variation with functional changes in encoded proteins. However, for functionally annotating the thousands of cancer-associated missense mutations, or variants of uncertain significance (VUS), purifying variant proteins for biochemical and functional analysis is cost-prohibitive and inefficient. We describe parallel functional annotation (PFA) of large numbers of VUS using small cultures and crude extracts in 96-well plates. Using members of a histone methyltransferase family, we demonstrate high-throughput structural and functional annotation of cancer-associated mutations. By combining functional annotation of paralogs, we discovered two phylogenetic and clustering parameters that improve the accuracy of sequence-based functional predictions to over 90%. Our results demonstrate the value of PFA for defining oncogenic/tumor suppressor functions of histone methyltransferases as well as enhancing the accuracy of sequence-based algorithms in predicting the effects of cancer-associated mutations.
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25
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Rahman S, Hoffmann NA, Worden EJ, Smith ML, Namitz KEW, Knutson BA, Cosgrove MS, Wolberger C. Multistate structures of the MLL1-WRAD complex bound to H2B-ubiquitinated nucleosome. Proc Natl Acad Sci U S A 2022; 119:e2205691119. [PMID: 36095189 PMCID: PMC9499523 DOI: 10.1073/pnas.2205691119] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/09/2022] [Indexed: 11/18/2022] Open
Abstract
The human Mixed Lineage Leukemia-1 (MLL1) complex methylates histone H3K4 to promote transcription and is stimulated by monoubiquitination of histone H2B. Recent structures of the MLL1-WRAD core complex, which comprises the MLL1 methyltransferase, WDR5, RbBp5, Ash2L, and DPY-30, have revealed variability in the docking of MLL1-WRAD on nucleosomes. In addition, portions of the Ash2L structure and the position of DPY30 remain ambiguous. We used an integrated approach combining cryoelectron microscopy (cryo-EM) and mass spectrometry cross-linking to determine a structure of the MLL1-WRAD complex bound to ubiquitinated nucleosomes. The resulting model contains the Ash2L intrinsically disordered region (IDR), SPRY insertion region, Sdc1-DPY30 interacting region (SDI-motif), and the DPY30 dimer. We also resolved three additional states of MLL1-WRAD lacking one or more subunits, which may reflect different steps in the assembly of MLL1-WRAD. The docking of subunits in all four states differs from structures of MLL1-WRAD bound to unmodified nucleosomes, suggesting that H2B-ubiquitin favors assembly of the active complex. Our results provide a more complete picture of MLL1-WRAD and the role of ubiquitin in promoting formation of the active methyltransferase complex.
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Affiliation(s)
- Sanim Rahman
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Niklas A. Hoffmann
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205
| | - Evan J. Worden
- Department of Structural Biology, Van Andel Research Institute, Grand Rapids, MI 49503
| | - Marissa L. Smith
- Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Kevin E. W. Namitz
- Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Bruce A. Knutson
- Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Michael S. Cosgrove
- Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Cynthia Wolberger
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205
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26
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Poreba E, Lesniewicz K, Durzynska J. Histone-lysine N-methyltransferase 2 (KMT2) complexes - a new perspective. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 790:108443. [PMID: 36154872 DOI: 10.1016/j.mrrev.2022.108443] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/25/2022] [Accepted: 09/19/2022] [Indexed: 01/01/2023]
Abstract
Histone H3 Lys4 (H3K4) methylation is catalyzed by the Histone-Lysine N-Methyltransferase 2 (KMT2) protein family, and its members are required for gene expression control. In vertebrates, the KMT2s function in large multisubunit complexes known as COMPASS or COMPASS-like complexes (COMplex of Proteins ASsociated with Set1). The activity of these complexes is critical for proper development, and mutation-induced defects in their functioning have frequently been found in human cancers. Moreover, inherited or de novo mutations in KMT2 genes are among the etiological factors in neurodevelopmental disorders such as Kabuki and Kleefstra syndromes. The canonical role of KMT2s is to catalyze H3K4 methylation, which results in a permissive chromatin environment that drives gene expression. However, current findings described in this review demonstrate that these enzymes can regulate processes that are not dependent on methylation: noncatalytic functions of KMT2s include DNA damage response, cell division, and metabolic activities. Moreover, these enzymes may also methylate non-histone substrates and play a methylation-dependent function in the DNA damage response. In this review, we present an overview of the new, noncanonical activities of KMT2 complexes in a variety of cellular processes. These discoveries may have crucial implications for understanding the functions of these methyltransferases in developmental processes, disease, and epigenome-targeting therapeutic strategies in the future.
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Affiliation(s)
- Elzbieta Poreba
- Department of Genetics, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Krzysztof Lesniewicz
- Department of Molecular and Cellular Biology, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Julia Durzynska
- Department of Genetics, Institute of Experimental Biology, Faculty of Biology, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
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27
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Zhou R, Xie F, Liu K, Zhou X, Chen X, Chen J, Xi S, Huang Z, Rong X. Cross talk between acetylation and methylation regulators reveals histone modifier expression patterns posing prognostic and therapeutic implications on patients with colon cancer. Clin Epigenetics 2022; 14:70. [PMID: 35606881 PMCID: PMC9128235 DOI: 10.1186/s13148-022-01290-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 05/15/2022] [Indexed: 11/14/2022] Open
Abstract
Background Alterations in histone modifications have been reported to be related to tumorigenicity and tumor progression. However, whether histone modification can aid the classification of patients or influence clinical behavior in patients with colon cancer remains unclear. Therefore, this study aimed to evaluate histone modifier expression patterns using the unsupervised clustering of the transcriptomic expressions of 88 histone acetylation and methylation regulators. Results In this study, by consensus clustering analysis based on the transcriptome data of 88 histone modification regulators, we identified four distinct expression patterns of histone modifiers associated with different prognoses, intrinsic fluorouracil sensitivities, biological pathways, and tumor microenvironment characteristics among 1372 colon cancer samples. In these four clusters, the HMC4 cluster represented a stroma activation phenotype characterized by both the worst prognosis and lowest response rates to fluorouracil treatment. Then, we established a scoring scheme comprising 155 genes designated as “HM_score” by using the Boruta algorithm to distinguish colon cancer patients within the HMC4 cluster. Patients with a high HM_score were considered to have high stromal pathway activation, high stromal fraction, and an unfavorable prognosis. Further analyses indicated that a high HM_score also correlated with reduced therapeutic benefits from fluorouracil chemotherapy. Moreover, through CRISPR library screening, ZEB2 was found to be a critical driver gene that mediates fluorouracil resistance, which is associated with histone modifier expression patterns. Conclusions This study highlights that characterizing histone modifier expression patterns may help better understand the epigenetic mechanisms underlying tumor heterogeneity in patients with colon cancer and provide more personalized therapeutic strategies. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-022-01290-y.
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Affiliation(s)
- Rui Zhou
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Fuli Xie
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Kuncai Liu
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Xuee Zhou
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China
| | - Xuemei Chen
- Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China
| | - Jinzhang Chen
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.,State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Hepatology Unit and Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Shaoyan Xi
- Department of Pathology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Zhenhua Huang
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
| | - Xiaoxiang Rong
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China.
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28
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Robertson MJ, Meyerowitz JG, Skiniotis G. Drug discovery in the era of cryo-electron microscopy. Trends Biochem Sci 2022; 47:124-135. [PMID: 34281791 PMCID: PMC8760134 DOI: 10.1016/j.tibs.2021.06.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/16/2021] [Accepted: 06/29/2021] [Indexed: 02/03/2023]
Abstract
Structure-based drug discovery (SBDD) is an indispensable approach for the design and optimization of new therapeutic agents. Here, we highlight the rapid progress that has turned cryo-electron microscopy (cryoEM) into an exceptional SBDD tool, and the wealth of new structural information it is providing for high-value pharmacological targets. We review key advantages of a technique that directly images vitrified biomolecules without the need for crystallization; both in terms of a broader array of systems that can be studied and the different forms of information it can provide, including heterogeneity and dynamics. We discuss near- and far-future developments, working in concert towards achieving the resolution and throughput necessary for cryoEM to make a widespread impact on the SBDD pipeline.
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Affiliation(s)
- Michael J Robertson
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA; Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA
| | - Justin G Meyerowitz
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA; Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA; Department of Anesthesiology, Perioperative & Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Georgios Skiniotis
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA; Department of Structural Biology, Stanford University School of Medicine, Stanford, CA, USA.
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Deshpande N, Jordan R, Henderson Pozzi M, Bryk M. Histone 3 lysine 4 monomethylation supports activation of transcription in S. cerevisiae during nutrient stress. Curr Genet 2022; 68:181-194. [PMID: 35041077 PMCID: PMC8976815 DOI: 10.1007/s00294-022-01226-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 12/17/2021] [Accepted: 12/31/2021] [Indexed: 12/11/2022]
Abstract
Mono-methylation of the fourth lysine on the N-terminal tail of histone H3 was found to support the induction of RNA polymerase II transcription in S. cerevisiae during nutrient stress. In S. cerevisiae, the mono-, di- and tri-methylation of lysine 4 on histone H3 (H3K4) is catalyzed by the protein methyltransferase, Set1. The three distinct methyl marks on H3K4 act in discrete ways to regulate transcription. Nucleosomes enriched with tri-methylated H3K4 are usually associated with active transcription whereas di-methylated H3K4 is associated with gene repression. Mono-methylated H3K4 has been shown to repress gene expression in S. cerevisiae and is detected at enhancers and promoters in eukaryotes. S. cerevisiae set1Δ mutants unable to methylate H3K4 exhibit growth defects during histidine starvation. The growth defects are rescued by either a wild-type allele of SET1 or partial-function alleles of set1, including a mutant that predominantly generates H3K4me1 and not H3K4me3. Rescue of the growth defect is associated with induction of the HIS3 gene. Growth defects observed when set1Δ cultures were starved for isoleucine and valine were also rescued by wild-type SET1 or partial-function set1 alleles. The results show that H3K4me1, in the absence of H3K4me3, supports transcription of the HIS3 gene and expression of one or more of the genes required for biosynthesis of isoleucine and valine during nutrient stress. Set1-like methyltransferases are evolutionarily conserved, and research has linked their functions to developmental gene regulation and several cancers in higher eukaryotes. Identification of mechanisms of H3K4me1-mediated activation of transcription in budding yeast will provide insight into gene regulation in all eukaryotes.
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Affiliation(s)
- Neha Deshpande
- Department of Biochemistry and Biophysics, Texas A&M University, 2128 TAMU, College Station, TX, 77843, USA
| | - Rachel Jordan
- Department of Biochemistry and Biophysics, Texas A&M University, 2128 TAMU, College Station, TX, 77843, USA
- iBio, 8800 HSC Blvd, Bryan, TX, 77807, USA
| | - Michelle Henderson Pozzi
- Department of Biochemistry and Biophysics, Texas A&M University, 2128 TAMU, College Station, TX, 77843, USA
| | - Mary Bryk
- Department of Biochemistry and Biophysics, Texas A&M University, 2128 TAMU, College Station, TX, 77843, USA.
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Ayoub A, Park SH, Lee YT, Cho US, Dou Y. Regulation of MLL1 Methyltransferase Activity in Two Distinct Nucleosome Binding Modes. Biochemistry 2021; 61:1-9. [DOI: 10.1021/acs.biochem.1c00603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alex Ayoub
- Department of Pathology, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Sang Ho Park
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Young-Tae Lee
- Department of Pathology, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Uhn-Soo Cho
- Department of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yali Dou
- Department of Pathology, University of Michigan, Ann Arbor, Michigan 48109, United States
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31
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Kleinschmidt RA, Lyon LM, Smith SL, Rittenberry J, Lawless KM, Acosta AA, Donze D. Genetic screen for suppressors of increased silencing in rpd3 mutants in Saccharomyces cerevisiae identifies a potential role for H3K4 methylation. G3 GENES|GENOMES|GENETICS 2021; 11:6371869. [PMID: 34534290 PMCID: PMC8527511 DOI: 10.1093/g3journal/jkab309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/27/2021] [Indexed: 11/24/2022]
Abstract
Several studies have identified the paradoxical phenotype of increased heterochromatic gene silencing at specific loci that results from deletion or mutation of the histone deacetylase (HDAC) gene RPD3. To further understand this phenomenon, we conducted a genetic screen for suppressors of this extended silencing phenotype at the HMR locus in Saccharomyces cerevisiae. Most of the mutations that suppressed extended HMR silencing in rpd3 mutants without completely abolishing silencing were identified in the histone H3 lysine 4 methylation (H3K4me) pathway, specifically in SET1, BRE1, and BRE2. These second-site mutations retained normal HMR silencing, therefore, appear to be specific for the rpd3Δ extended silencing phenotype. As an initial assessment of the role of H3K4 methylation in extended silencing, we rule out some of the known mechanisms of Set1p/H3K4me mediated gene repression by HST1, HOS2, and HST3 encoded HDACs. Interestingly, we demonstrate that the RNA Polymerase III complex remains bound and active at the HMR-tDNA in rpd3 mutants despite silencing extending beyond the normal barrier. We discuss these results as they relate to the interplay among different chromatin-modifying enzyme functions and the importance of further study of this enigmatic phenomenon.
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Affiliation(s)
| | - Laurie M Lyon
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Samantha L Smith
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Jonah Rittenberry
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - K Maeve Lawless
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Anabelle A Acosta
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
| | - David Donze
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
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32
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Okuda N, Nakazawa T, Horii M, Wu H, Kawauchi M, Sakamoto M, Honda Y. Overexpressing Pleurotus ostreatus rho1b results in transcriptional upregulation of the putative cellulolytic enzyme-encoding genes observed in ccl1 disruptants. Environ Microbiol 2021; 23:7009-7027. [PMID: 34622510 DOI: 10.1111/1462-2920.15786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/19/2021] [Indexed: 11/30/2022]
Abstract
The transcriptional expression pattern of lignocellulolytic enzyme-encoding genes in white-rot fungi differs depending on the culture conditions. Recently, it was shown that 13 putative cellulolytic enzyme-encoding genes were significantly upregulated in most Pleurotus ostreatus ligninolysis-deficient mutant strains on beech wood sawdust medium. However, the mechanisms by which this transcriptional shift is triggered remain unknown. In this study, we identified one mechanism. Our previous study implied that histone H3 N-dimethylation at lysine 4 level possibly affects the shift; therefore, we analysed the expression pattern in the disruptants of P. ostreatus ccl1, which encodes a putative component of the COMPASS complex mediating the methylation. The results showed upregulation of 5 of the 13 cellulolytic enzyme-encoding genes. We also found that rho1b, encoding a putative GTPase regulating signal transduction pathways, was upregulated in the ccl1 disruptants and ligninolysis-deficient strains. Upregulation of at least three of the five cellulolytic enzyme-encoding genes was observed in rho1b-overexpressing strains but not in ccl1/rho1b double-gene disruptants, during the 20-day culture period. These results suggest that Rho1b may be involved in the upregulation of cellulolytic enzyme-encoding genes observed in the ccl1 disruptants. Furthermore, we suggest that Mpk1b, a putative Agaricomycetes-specific mitogen-activated protein kinase, functions downstream of Rho1b.
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Affiliation(s)
- Nozomi Okuda
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takehito Nakazawa
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Masato Horii
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hongli Wu
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Moriyuki Kawauchi
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Yoichi Honda
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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33
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Yang Y, Yang Y, Chan K, Couture JF. Analyzing the impact of CFP1 mutational landscape on epigenetic signaling. FASEB J 2021; 35:e21790. [PMID: 34320252 DOI: 10.1096/fj.202100427r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 11/11/2022]
Abstract
CXXC Zinc finger protein 1 (CFP1) is a multitasking protein playing essential roles during various developmental processes. Its ability to interact with several proteins contribute to several epigenetic events. Here, we review CFP1's functions and its impact on DNA methylation and the post-translational modification of histone proteins such as lysine acetylation and methylation. We will also discuss the potential role of CFP1 in carcinogenesis and the impact of the mutations identified in patients suffering from various cancers.
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Affiliation(s)
- Yidai Yang
- Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada.,Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, University of Ottawa, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Yaqing Yang
- Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Kin Chan
- Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Jean-Francois Couture
- Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada.,Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, University of Ottawa, Ottawa, ON, Canada.,Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
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34
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Separovich RJ, Wilkins MR. Ready, SET, Go: Post-translational regulation of the histone lysine methylation network in budding yeast. J Biol Chem 2021; 297:100939. [PMID: 34224729 PMCID: PMC8329514 DOI: 10.1016/j.jbc.2021.100939] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/25/2021] [Accepted: 07/01/2021] [Indexed: 11/21/2022] Open
Abstract
Histone lysine methylation is a key epigenetic modification that regulates eukaryotic transcription. Here, we comprehensively review the function and regulation of the histone methylation network in the budding yeast and model eukaryote, Saccharomyces cerevisiae. First, we outline the lysine methylation sites that are found on histone proteins in yeast (H3K4me1/2/3, H3K36me1/2/3, H3K79me1/2/3, and H4K5/8/12me1) and discuss their biological and cellular roles. Next, we detail the reduced but evolutionarily conserved suite of methyltransferase (Set1p, Set2p, Dot1p, and Set5p) and demethylase (Jhd1p, Jhd2p, Rph1p, and Gis1p) enzymes that are known to control histone lysine methylation in budding yeast cells. Specifically, we illustrate the domain architecture of the methylation enzymes and highlight the structural features that are required for their respective functions and molecular interactions. Finally, we discuss the prevalence of post-translational modifications on yeast histone methylation enzymes and how phosphorylation, acetylation, and ubiquitination in particular are emerging as key regulators of enzyme function. We note that it will be possible to completely connect the histone methylation network to the cell's signaling system, given that all methylation sites and cognate enzymes are known, most phosphosites on the enzymes are known, and the mapping of kinases to phosphosites is tractable owing to the modest set of protein kinases in yeast. Moving forward, we expect that the rich variety of post-translational modifications that decorates the histone methylation machinery will explain many of the unresolved questions surrounding the function and dynamics of this intricate epigenetic network.
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Affiliation(s)
- Ryan J Separovich
- Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Marc R Wilkins
- Systems Biology Initiative, School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia.
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35
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Hsu CL, Lo YC, Kao CF. H3K4 Methylation in Aging and Metabolism. EPIGENOMES 2021; 5:14. [PMID: 34968301 PMCID: PMC8594702 DOI: 10.3390/epigenomes5020014] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/02/2021] [Accepted: 06/15/2021] [Indexed: 02/03/2023] Open
Abstract
During the process of aging, extensive epigenetic alterations are made in response to both exogenous and endogenous stimuli. Here, we summarize the current state of knowledge regarding one such alteration, H3K4 methylation (H3K4me), as it relates to aging in different species. We especially highlight emerging evidence that links this modification with metabolic pathways, which may provide a mechanistic link to explain its role in aging. H3K4me is a widely recognized marker of active transcription, and it appears to play an evolutionarily conserved role in determining organism longevity, though its influence is context specific and requires further clarification. Interestingly, the modulation of H3K4me dynamics may occur as a result of nutritional status, such as methionine restriction. Methionine status appears to influence H3K4me via changes in the level of S-adenosyl methionine (SAM, the universal methyl donor) or the regulation of H3K4-modifying enzyme activities. Since methionine restriction is widely known to extend lifespan, the mechanistic link between methionine metabolic flux, the sensing of methionine concentrations and H3K4me status may provide a cogent explanation for several seemingly disparate observations in aging organisms, including age-dependent H3K4me dynamics, gene expression changes, and physiological aberrations. These connections are not yet entirely understood, especially at a molecular level, and will require further elucidation. To conclude, we discuss some potential H3K4me-mediated molecular mechanisms that may link metabolic status to the aging process.
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Affiliation(s)
- Chia-Ling Hsu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan;
| | - Yi-Chen Lo
- Graduate Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan;
| | - Cheng-Fu Kao
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan;
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36
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Koliopoulos MG, Alfieri C. Cell cycle regulation by complex nanomachines. FEBS J 2021; 289:5100-5120. [PMID: 34143558 DOI: 10.1111/febs.16082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/05/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Abstract
The cell cycle is the essential biological process where one cell replicates its genome and segregates the resulting two copies into the daughter cells during mitosis. Several aspects of this process have fascinated humans since the nineteenth century. Today, the cell cycle is exhaustively investigated because of its profound connections with human diseases and cancer. At the heart of the molecular network controlling the cell cycle, we find the cyclin-dependent kinases (CDKs) acting as an oscillator to impose an orderly and highly regulated progression through the different cell cycle phases. This oscillator integrates both internal and external signals via a multitude of signalling pathways involving posttranslational modifications including phosphorylation, protein ubiquitination and mechanisms of transcriptional regulation. These tasks are specifically performed by multi-subunit complexes, which are intensively studied both biochemically and structurally with the aim to unveil mechanistic insights into their molecular function. The scope of this review is to summarise the structural biology of the cell cycle machinery, with specific focus on the core cell cycle machinery involving the CDK-cyclin oscillator. We highlight the contribution of cryo-electron microscopy, which has started to revolutionise our understanding of the molecular function and dynamics of the key players of the cell cycle.
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Affiliation(s)
- Marios G Koliopoulos
- Chester Beatty Laboratories, Structural Biology Division, Institute of Cancer Research, London, UK
| | - Claudio Alfieri
- Chester Beatty Laboratories, Structural Biology Division, Institute of Cancer Research, London, UK
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Tang L, Tang B, Lei Y, Yang M, Wang S, Hu S, Xie Z, Liu Y, Vlodavsky I, Yang S. Helicobacter pylori-Induced Heparanase Promotes H. pylori Colonization and Gastritis. Front Immunol 2021; 12:675747. [PMID: 34220822 PMCID: PMC8248549 DOI: 10.3389/fimmu.2021.675747] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
Chronic gastritis caused by Helicobacter pylori (H. pylori) infection has been widely recognized as the most important risk factor for gastric cancer. Analysis of the interaction between the key participants in gastric mucosal immunity and H. pylori infection is expected to provide important insights for the treatment of chronic gastritis and the prevention of gastric cancer. Heparanase is an endoglycosidase that degrades heparan sulfate, resulting in remodeling of the extracellular matrix thereby facilitating the extravasation and migration of immune cells towards sites of inflammation. Heparanase also releases heparan sulfate-bound cytokines and chemokines that further promote directed motility and recruitment of immune cells. Heparanase is highly expressed in a variety of inflammatory conditions and diseases, but its role in chronic gastritis has not been sufficiently explored. In this study, we report that H. pylori infection promotes up-regulation of heparanase in gastritis, which in turn facilitates the colonization of H. pylori in the gastric mucosa, thereby aggravating gastritis. By sustaining continuous activation, polarization and recruitment of macrophages that supply pro-inflammatory and pro-tumorigenic cytokines (i.e., IL-1, IL-6, IL-1β, TNF-α, MIP-2, iNOS), heparanase participates in the generation of a vicious circle, driven by enhanced NFκB and p38-MAPK signaling, that supports the development and progression of gastric cancer. These results suggest that inhibition of heparanase may block this self-sustaining cycle, and thereby reduce the risk of gastritis and gastric cancer.
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Affiliation(s)
- Li Tang
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Bo Tang
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Yuanyuan Lei
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Min Yang
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Sumin Wang
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Shiping Hu
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Zhuo Xie
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Yaojiang Liu
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
| | - Israel Vlodavsky
- Technion Integrated Cancer Center (TICC), Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
| | - Shiming Yang
- Department of Gastroenterology, Xinqiao Hospital, The Army Medical University, Chongqing, China
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38
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Deng X, Iwagawa T, Fukushima M, Suzuki Y, Watanabe S. Setd1a Plays Pivotal Roles for the Survival and Proliferation of Retinal Progenitors via Histone Modifications of Uhrf1. Invest Ophthalmol Vis Sci 2021; 62:1. [PMID: 33938913 PMCID: PMC8107498 DOI: 10.1167/iovs.62.6.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 04/02/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose The trimethylation of histone H3 at lysine 4 (H3K4me3) facilitates transcriptional gene activation, and Setd1a is the methyltransferase specific to H3K4. H3K4me3 has been reported to regulate rod photoreceptor differentiation; however, the roles H3K4me3 plays in retinal progenitor cell (RPC) proliferation and differentiation during early retinal development remain unclear. Methods Using an in vitro retinal explant culture system, we suppressed the expression of Setd1a by introducing shSetd1a. We examined the expression level and H3K4me3 level of genes by RNA Sequencing and ChIP assay, respectively. Results We found that Setd1a depletion resulted in increased apoptosis and proliferation failure in late RPCs. Expression of wild-type SETD1A, but not SETD1A that lacked the catalytic SET domain, reversed the shSetd1a-induced phenotype. RNA Sequencing revealed that proliferation-related genes were downregulated upon shSetd1a expression. Based on publicly available H3K4me3-ChIP sequencing data of retinal development, we identified Uhrf1 as a candidate target gene of Setd1a. The expression of shSetd1a led to a decrease in Uhrf1 transcript levels and reduced H3K4me3 levels at the Uhrf1 locus. Increased apoptosis and the suppression of proliferation in late RPCs were observed in retinal explants expressing shUhrf1, similar to the outcomes observed in shSetd1a-expressing retinas. The overexpression of UHRF1 did not rescue shSetd1a-induced apoptosis, but reversed the suppression of proliferation. Conclusions These results indicate that Setd1a contributes to the survival and proliferation of retinal cells by regulating histone methylation, Setd1a regulates Uhrf1 expression, and these two molecules cooperate to regulate RPC survival and proliferation.
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Affiliation(s)
- Xiaoyue Deng
- Division of Molecular and Developmental Biology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Toshiro Iwagawa
- Division of Molecular and Developmental Biology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Masaya Fukushima
- Division of Molecular and Developmental Biology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Ophthalmology, The University of Tokyo, Tokyo, Japan
| | - Yutaka Suzuki
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Sumiko Watanabe
- Division of Molecular and Developmental Biology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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39
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Davidovich C, Zhang Q. Allosteric regulation of histone lysine methyltransferases: from context-specific regulation to selective drugs. Biochem Soc Trans 2021; 49:591-607. [PMID: 33769454 PMCID: PMC8106495 DOI: 10.1042/bst20200238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023]
Abstract
Histone lysine methyltransferases (HKMTs) are key regulators of many cellular processes. By definition, HKMTs catalyse the methylation of lysine residues in histone proteins. The enzymatic activities of HKMTs are under precise control, with their allosteric regulation emerging as a prevalent paradigm. We review the molecular mechanisms of allosteric regulation of HKMTs using well-studied histone H3 (K4, K9, K27 and K36) methyltransferases as examples. We discuss the current advances and future potential in targeting allosteric sites of HKMTs for drug development.
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Affiliation(s)
- Chen Davidovich
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
- EMBL-Australia and the ARC Centre of Excellence in Advanced Molecular Imaging, Clayton, Victoria, Australia
| | - Qi Zhang
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
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40
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Separovich RJ, Wong MWM, Chapman TR, Slavich E, Hamey JJ, Wilkins MR. Post-translational modification analysis of Saccharomyces cerevisiae histone methylation enzymes reveals phosphorylation sites of regulatory potential. J Biol Chem 2021; 296:100192. [PMID: 33334889 PMCID: PMC7948420 DOI: 10.1074/jbc.ra120.015995] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/06/2020] [Accepted: 12/15/2020] [Indexed: 12/15/2022] Open
Abstract
Histone methylation is central to the regulation of eukaryotic transcription. In Saccharomyces cerevisiae, it is controlled by a system of four methyltransferases (Set1p, Set2p, Set5p, and Dot1p) and four demethylases (Jhd1p, Jhd2p, Rph1p, and Gis1p). While the histone targets for these enzymes are well characterized, the connection of the enzymes with the intracellular signaling network and thus their regulation is poorly understood; this also applies to all other eukaryotes. Here we report the detailed characterization of the eight S. cerevisiae enzymes and show that they carry a total of 75 phosphorylation sites, 92 acetylation sites, and two ubiquitination sites. All enzymes are subject to phosphorylation, although demethylases Jhd1p and Jhd2p contained one and five sites respectively, whereas other enzymes carried 14 to 36 sites. Phosphorylation was absent or underrepresented on catalytic and other domains but strongly enriched for regions of disorder on methyltransferases, suggesting a role in the modulation of protein-protein interactions. Through mutagenesis studies, we show that phosphosites within the acidic and disordered N-terminus of Set2p affect H3K36 methylation levels in vivo, illustrating the functional importance of such sites. While most kinases upstream of the yeast histone methylation enzymes remain unknown, we model the possible connections between the cellular signaling network and the histone-based gene regulatory system and propose an integrated regulatory structure. Our results provide a foundation for future, detailed exploration of the role of specific kinases and phosphosites in the regulation of histone methylation.
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Affiliation(s)
- Ryan J Separovich
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Mandy W M Wong
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Tyler R Chapman
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Eve Slavich
- Stats Central, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Joshua J Hamey
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Marc R Wilkins
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales, Australia.
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Wang S, Meyer DH, Schumacher B. H3K4me2 regulates the recovery of protein biosynthesis and homeostasis following DNA damage. Nat Struct Mol Biol 2020; 27:1165-1177. [DOI: 10.1038/s41594-020-00513-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 09/02/2020] [Indexed: 01/08/2023]
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42
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Li Y, Zhao L, Tian X, Peng C, Gong F, Chen Y. Crystal Structure of MLL2 Complex Guides the Identification of a Methylation Site on P53 Catalyzed by KMT2 Family Methyltransferases. Structure 2020; 28:1141-1148.e4. [DOI: 10.1016/j.str.2020.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/21/2020] [Accepted: 07/01/2020] [Indexed: 01/01/2023]
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Deng ZH, Ai HS, Lu CP, Li JB. The Bre1/Rad6 machinery: writing the central histone ubiquitin mark on H2B and beyond. Chromosome Res 2020; 28:247-258. [PMID: 32895784 DOI: 10.1007/s10577-020-09640-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/20/2020] [Accepted: 08/30/2020] [Indexed: 01/10/2023]
Abstract
Mono-ubiquitination on H2B (H2Bub1) is an evolutionarily conserved histone post-translational modification implicated in various important physiological processes including DNA replication, transcription activation, and DNA damage repair. The Bre1/Rad6 ubiquitination machinery is currently considered to be the sole writer of H2Bub1, but the mechanistic basis by which it operates is unclear. Recently, the RING-type E3 ligase Bre1 was proposed to associate with the E2 enzyme Rad6 through a novel interaction between Bre1 RBD (Rad6 binding domain) and Rad6; and the RING domain of Bre1 that is responsible for the nucleosomal acidic patch binding also interacts with Rad6 to stimulate its catalytic activity. Recent discoveries have yielded evidence for the phenomenon of liquid-liquid phase separation in the context of H2Bub1, and its regulation by other histone post-translational modifications. This review summarizes current knowledge about Bre1/Rad6-mediated H2B ubiquitination, including the physiological functions and the molecular basis for writing and regulation of this central histone ubiquitin mark. Possible models for the Bre1/Rad6 machinery bound to nucleosomes bearing different modifications in the writing step are also disclosed.
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Affiliation(s)
- Zhi-Heng Deng
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.,Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hua-Song Ai
- Tsinghua-Peking Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Cheng-Piao Lu
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China
| | - Jia-Bin Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215123, China.
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44
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Abay-Nørgaard S, Attianese B, Boreggio L, Salcini AE. Regulators of H3K4 methylation mutated in neurodevelopmental disorders control axon guidance in Caenorhabditis elegans. Development 2020; 147:dev.190637. [PMID: 32675280 PMCID: PMC7420840 DOI: 10.1242/dev.190637] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 07/10/2020] [Indexed: 12/11/2022]
Abstract
Post-translational histone modifications regulate chromatin compaction and gene expression to control many aspects of development. Mutations in genes encoding regulators of H3K4 methylation are causally associated with neurodevelopmental disorders characterized by intellectual disability and deficits in motor functions. However, it remains unclear how H3K4 methylation influences nervous system development and contributes to the aetiology of disease. Here, we show that the catalytic activity of set-2, the Caenorhabditis elegans homologue of the H3K4 methyltransferase KMT2F/G (SETD1A/B) genes, controls embryonic transcription of neuronal genes and is required for establishing proper axon guidance, and for neuronal functions related to locomotion and learning. Moreover, we uncover a striking correlation between components of the H3K4 regulatory machinery mutated in neurodevelopmental disorders and the process of axon guidance in C. elegans. Thus, our study supports an epigenetic-based model for the aetiology of neurodevelopmental disorders, based on an aberrant axon guidance process originating from deregulated H3K4 methylation. Summary: Analysis of mutants lacking many known H3K4 regulators reveals the role of H3K4 methylation in C. elegans neuronal functions and suggests that aberrant axon guidance is a shared trait in neurodevelopmental diseases.
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Affiliation(s)
- Steffen Abay-Nørgaard
- BRIC, University of Copenhagen, Biotech Research and Innovation Centre, Ole Maaloes vej 5, 2200, Copenhagen, Denmark
| | - Benedetta Attianese
- BRIC, University of Copenhagen, Biotech Research and Innovation Centre, Ole Maaloes vej 5, 2200, Copenhagen, Denmark
| | - Laura Boreggio
- BRIC, University of Copenhagen, Biotech Research and Innovation Centre, Ole Maaloes vej 5, 2200, Copenhagen, Denmark
| | - Anna Elisabetta Salcini
- BRIC, University of Copenhagen, Biotech Research and Innovation Centre, Ole Maaloes vej 5, 2200, Copenhagen, Denmark
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45
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Antunes ETB, Ottersbach K. The MLL/SET family and haematopoiesis. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2020; 1863:194579. [PMID: 32389825 PMCID: PMC7294230 DOI: 10.1016/j.bbagrm.2020.194579] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 04/08/2020] [Accepted: 04/30/2020] [Indexed: 12/11/2022]
Abstract
As demonstrated through early work in Drosophila, members of the MLL/SET family play essential roles during embryonic development through their participation in large protein complexes that are central to epigenetic regulation of gene expression. One of its members, MLL1, has additionally received a lot of attention as it is a potent oncogenic driver in different types of leukaemia when aberrantly fused to a large variety of partners as a result of chromosomal translocations. Its exclusive association with cancers of the haematopoietic system has prompted a large number of investigations into the role of MLL/SET proteins in haematopoiesis, a summary of which was attempted in this review. Interestingly, MLL-rearranged leukaemias are particularly prominent in infant and paediatric leukaemia, which commonly initiate in utero. This, together with the known function of MLL/SET proteins in embryonic development, has focussed research efforts in recent years on understanding the role of this protein family in developmental haematopoiesis and how this may be subverted by MLL oncofusions in infant leukaemia. A detailed understanding of these prenatal events is essential for the development of new treatments that improve the survival specifically of this very young patient group.
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Affiliation(s)
- Eric T B Antunes
- MRC Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, Scotland, UK
| | - Katrin Ottersbach
- MRC Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, Scotland, UK.
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46
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Janna A, Davarinejad H, Joshi M, Couture JF. Structural Paradigms in the Recognition of the Nucleosome Core Particle by Histone Lysine Methyltransferases. Front Cell Dev Biol 2020; 8:600. [PMID: 32850785 PMCID: PMC7412744 DOI: 10.3389/fcell.2020.00600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/19/2020] [Indexed: 12/18/2022] Open
Abstract
Post-translational modifications (PTMs) of histone proteins play essential functions in shaping chromatin environment. Alone or in combination, these PTMs create templates recognized by dedicated proteins or change the chemistry of chromatin, enabling a myriad of nuclear processes to occur. Referred to as cross-talk, the positive or negative impact of a PTM on another PTM has rapidly emerged as a mechanism controlling nuclear transactions. One of those includes the stimulatory functions of histone H2B ubiquitylation on the methylation of histone H3 on K79 and K4 by Dot1L and COMPASS, respectively. While these findings were established early on, the structural determinants underlying the positive impact of H2B ubiquitylation on H3K79 and H3K4 methylation were resolved only recently. We will also review the molecular features controlling these cross-talks and the impact of H3K27 tri-methylation on EZH2 activity when embedded in the PRC2 complex.
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Affiliation(s)
- Ashley Janna
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Hossein Davarinejad
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Monika Joshi
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Jean-Francois Couture
- Ottawa Institute of Systems Biology, Shanghai Institute of Materia Medica-University of Ottawa Research Center in Systems and Personalized Pharmacology, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
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47
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Gong X, Yu Q, Duan K, Tong Y, Zhang X, Mei Q, Lu L, Yu X, Li S. Histone acetyltransferase Gcn5 regulates gene expression by promoting the transcription of histone methyltransferase SET1. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2020; 1863:194603. [PMID: 32663628 DOI: 10.1016/j.bbagrm.2020.194603] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 06/20/2020] [Accepted: 07/08/2020] [Indexed: 01/26/2023]
Abstract
Many chromatin modifying factors regulate gene expression in an as-yet-unknown indirect manner. Revealing the molecular basis for this indirect gene regulation will help understand their precise roles in gene regulation and associated biological processes. Here, we studied histone modifying enzymes that indirectly regulate gene expression by modulating the expression of histone methyltransferase, Set1. Through unbiased screening of the histone H3/H4 mutant library, we identified 13 histone substitution mutations with reduced levels of Set1 and H3K4 trimethylation (H3K4me3) and 2 mutations with increased levels of Set1 and H3K4me3, which concentrate at 3 structure clusters. Among these substitutions, the H3K14A mutant substantially reduces SET1 transcription and H3K4me3. H3K14 is acetylated by histone acetyltransferase Gcn5 at SET1 promoter, which then promotes SET1 transcription to maintain normal H3K4me3 levels. In contrast, the histone deacetylase Rpd3 deacetylates H3K14 to repress SET1 transcription and hence reduce H3K4me3 levels, establishing a dynamic crosstalk between H3K14ac and H3K4me3. By promoting the transcription of SET1 and maintaining H3K4me3 levels, Gcn5 regulates the transcription of a subset gene in an indirect manner. Collectively, we propose a model wherein Gcn5 promotes the expression of chromatin modifiers to regulate histone crosstalk and gene transcription.
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Affiliation(s)
- Xuanyunjing Gong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Qi Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Kai Duan
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Yue Tong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Xinyu Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Qianyun Mei
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Li Lu
- Institute of TCM and Natural Products, Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical Sciences, Wuhan University, 185 East Lake Road, Wuhan 430071, China
| | - Xilan Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China.
| | - Shanshan Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan, Hubei 430062, China.
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48
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Serrano-Quílez J, Roig-Soucase S, Rodríguez-Navarro S. Sharing Marks: H3K4 Methylation and H2B Ubiquitination as Features of Meiotic Recombination and Transcription. Int J Mol Sci 2020; 21:ijms21124510. [PMID: 32630409 PMCID: PMC7350030 DOI: 10.3390/ijms21124510] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 12/13/2022] Open
Abstract
Meiosis is a specialized cell division that gives raise to four haploid gametes from a single diploid cell. During meiosis, homologous recombination is crucial to ensure genetic diversity and guarantee accurate chromosome segregation. Both the formation of programmed meiotic DNA double-strand breaks (DSBs) and their repair using homologous chromosomes are essential and highly regulated pathways. Similar to other processes that take place in the context of chromatin, histone posttranslational modifications (PTMs) constitute one of the major mechanisms to regulate meiotic recombination. In this review, we focus on specific PTMs occurring in histone tails as driving forces of different molecular events, including meiotic recombination and transcription. In particular, we concentrate on the influence of H3K4me3, H2BK123ub, and their corresponding molecular machineries that write, read, and erase these histone marks. The Spp1 subunit within the Complex of Proteins Associated with Set1 (COMPASS) is a critical regulator of H3K4me3-dependent meiotic DSB formation. On the other hand, the PAF1c (RNA polymerase II associated factor 1 complex) drives the ubiquitination of H2BK123 by Rad6-Bre1. We also discuss emerging evidence obtained by cryo-electron microscopy (EM) structure determination that has provided new insights into how the "cross-talk" between these two marks is accomplished.
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49
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Ashokkumar D, Zhang Q, Much C, Bledau AS, Naumann R, Alexopoulou D, Dahl A, Goveas N, Fu J, Anastassiadis K, Stewart AF, Kranz A. MLL4 is required after implantation, whereas MLL3 becomes essential during late gestation. Development 2020; 147:dev186999. [PMID: 32439762 DOI: 10.1242/dev.186999] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/24/2020] [Indexed: 12/26/2022]
Abstract
Methylation of histone 3 lysine 4 (H3K4) is a major epigenetic system associated with gene expression. In mammals there are six H3K4 methyltransferases related to yeast Set1 and fly Trithorax, including two orthologs of fly Trithorax-related: MLL3 and MLL4. Exome sequencing has documented high frequencies of MLL3 and MLL4 mutations in many types of human cancer. Despite this emerging importance, the requirements of these paralogs in mammalian development have only been incompletely reported. Here, we examined the null phenotypes to establish that MLL3 is first required for lung maturation, whereas MLL4 is first required for migration of the anterior visceral endoderm that initiates gastrulation in the mouse. This collective cell migration is preceded by a columnar-to-squamous transition in visceral endoderm cells that depends on MLL4. Furthermore, Mll4 mutants display incompletely penetrant, sex-distorted, embryonic haploinsufficiency and adult heterozygous mutants show aspects of Kabuki syndrome, indicating that MLL4 action, unlike MLL3, is dosage dependent. The highly specific and discordant functions of these paralogs in mouse development argues against their action as general enhancer factors.
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Affiliation(s)
- Deepthi Ashokkumar
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Qinyu Zhang
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Christian Much
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Anita S Bledau
- Stem Cell Engineering, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Ronald Naumann
- Transgenic Core Facility, Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstr. 108, 01307 Dresden, Germany
| | - Dimitra Alexopoulou
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307 Dresden, Germany
| | - Andreas Dahl
- DRESDEN-concept Genome Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307 Dresden, Germany
| | - Neha Goveas
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Jun Fu
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - Konstantinos Anastassiadis
- Stem Cell Engineering, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
| | - A Francis Stewart
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
- Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstr. 108, 01307 Dresden, Germany
| | - Andrea Kranz
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Tatzberg 47, 01307 Dresden, Germany
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50
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Jiang H. The complex activities of the SET1/MLL complex core subunits in development and disease. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2020; 1863:194560. [PMID: 32302696 DOI: 10.1016/j.bbagrm.2020.194560] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/14/2020] [Accepted: 04/09/2020] [Indexed: 12/14/2022]
Abstract
In mammalian cells, the SET1/MLL complexes are the main writers of the H3K4 methyl mark that is associated with active gene expression. The activities of these complexes are critically dependent on the association of the catalytic subunit with their shared core subunits, WDR5, RBBP5, ASH2L, and DPY30, collectively referred as WRAD. In addition, some of these core subunits can bind to proteins other than the SET1/MLL complex components. This review starts with discussion of the molecular activities of these core subunits, with an emphasis on DPY30 in organizing the assembly of the SET1/MLL complexes with other associated factors. This review then focuses on the roles of the core subunits in stem cells and development, as well as in diseased cell states, mainly cancer, and ends with discussion on dissecting the responsible activities of the core subunits and how we may target them for potential disease treatment. This article is part of a Special Issue entitled: The MLL family of proteins in normal development and disease edited by Thomas A Milne.
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Affiliation(s)
- Hao Jiang
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA 22908, USA.
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