1
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Crain AT, Butler MB, Hill CA, Huynh M, McGinty RK, Duronio RJ. Drosophila melanogaster Set8 and L(3)mbt function in gene expression independently of histone H4 lysine 20 methylation. Genes Dev 2024; 38:455-472. [PMID: 38866557 PMCID: PMC11216177 DOI: 10.1101/gad.351698.124] [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: 03/12/2024] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Monomethylation of lysine 20 of histone H4 (H4K20me1) is catalyzed by Set8 and thought to play important roles in many aspects of genome function that are mediated by H4K20me binding proteins. We interrogated this model in a developing animal by comparing in parallel the transcriptomes of Set8 null , H4 K20R/A , and l(3)mbt mutant Drosophila melanogaster We found that the gene expression profiles of H4 K20A and H4 K20R larvae are markedly different than Set8 null larvae despite similar reductions in H4K20me1. Set8 null mutant cells have a severely disrupted transcriptome and fail to proliferate in vivo, but these phenotypes are not recapitulated by mutation of H4 K20 , indicating that the developmental defects of Set8 null animals are largely due to H4K20me1-independent effects on gene expression. Furthermore, the H4K20me1 binding protein L(3)mbt is recruited to the transcription start sites of most genes independently of H4K20me even though genes bound by L(3)mbt have high levels of H4K20me1. Moreover, both Set8 and L(3)mbt bind to purified H4K20R nucleosomes in vitro. We conclude that gene expression changes in Set8 null and H4 K20 mutants cannot be explained by loss of H4K20me1 or L(3)mbt binding to chromatin and therefore that H4K20me1 does not play a large role in gene expression.
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Affiliation(s)
- Aaron T Crain
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Integrative Program for Biological and Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599 USA
| | - Megan B Butler
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599 USA
| | - Christina A Hill
- Integrative Program for Biological and Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599 USA
| | - Mai Huynh
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, University of North Carolina Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599 USA
| | - Robert K McGinty
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Division of Chemical Biology and Medicinal Chemistry, Center for Integrative Chemical Biology and Drug Discovery, University of North Carolina Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, North Carolina 27599 USA
| | - Robert J Duronio
- Curriculum in Genetics and Molecular Biology, University of North Carolina, Chapel Hill, North Carolina 27599 USA;
- Integrative Program for Biological and Genome Sciences, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, North Carolina 27599 USA
- Department of Genetics, University of North Carolina, Chapel Hill, North Carolina 27599 USA
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2
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Martinez-Mayer J, Brinkmeier ML, O'Connell SP, Ukagwu A, Marti MA, Miras M, Forclaz MV, Benzrihen MG, Cheung LYM, Camper SA, Ellsworth BS, Raetzman LT, Pérez-Millán MI, Davis SW. Knockout mice with pituitary malformations help identify human cases of hypopituitarism. Genome Med 2024; 16:75. [PMID: 38822427 PMCID: PMC11140907 DOI: 10.1186/s13073-024-01347-y] [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: 10/09/2023] [Accepted: 05/20/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Congenital hypopituitarism (CH) and its associated syndromes, septo-optic dysplasia (SOD) and holoprosencephaly (HPE), are midline defects that cause significant morbidity for affected people. Variants in 67 genes are associated with CH, but a vast majority of CH cases lack a genetic diagnosis. Whole exome and whole genome sequencing of CH patients identifies sequence variants in genes known to cause CH, and in new candidate genes, but many of these are variants of uncertain significance (VUS). METHODS The International Mouse Phenotyping Consortium (IMPC) is an effort to establish gene function by knocking-out all genes in the mouse genome and generating corresponding phenotype data. We used mouse embryonic imaging data generated by the Deciphering Mechanisms of Developmental Disorders (DMDD) project to screen 209 embryonic lethal and sub-viable knockout mouse lines for pituitary malformations. RESULTS Of the 209 knockout mouse lines, we identified 51 that have embryonic pituitary malformations. These genes not only represent new candidates for CH, but also reveal new molecular pathways not previously associated with pituitary organogenesis. We used this list of candidate genes to mine whole exome sequencing data of a cohort of patients with CH, and we identified variants in two unrelated cases for two genes, MORC2 and SETD5, with CH and other syndromic features. CONCLUSIONS The screening and analysis of IMPC phenotyping data provide proof-of-principle that recessive lethal mouse mutants generated by the knockout mouse project are an excellent source of candidate genes for congenital hypopituitarism in children.
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Affiliation(s)
- Julian Martinez-Mayer
- Institute of Biosciences, Biotechnology and Translational Biology (iB3), University of Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina
| | - Michelle L Brinkmeier
- Department of Human Genetics, University of Michigan, 1241 Catherine St., Ann Arbor, MI, 48109-5618, USA
| | - Sean P O'Connell
- Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, SC, 29208, USA
| | - Arnold Ukagwu
- Department of Physiology, Southern Illinois University, 1135 Lincoln Dr, Carbondale, IL, 62901, USA
| | - Marcelo A Marti
- Instituto de Química Biológica de La Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mirta Miras
- Hospital De Niños de La Santísima Trinidad, Córdoba, Argentina
| | - Maria V Forclaz
- Servicio de Endocrinología, Hospital Posadas, Buenos Aires, Argentina
| | - Maria G Benzrihen
- Servicio de Endocrinología, Hospital Posadas, Buenos Aires, Argentina
| | - Leonard Y M Cheung
- Department of Human Genetics, University of Michigan, 1241 Catherine St., Ann Arbor, MI, 48109-5618, USA
- Department of Physiology and Biophyscis, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Sally A Camper
- Department of Human Genetics, University of Michigan, 1241 Catherine St., Ann Arbor, MI, 48109-5618, USA
| | - Buffy S Ellsworth
- Department of Physiology, Southern Illinois University, 1135 Lincoln Dr, Carbondale, IL, 62901, USA
| | - Lori T Raetzman
- Department of Molecular and Integrative Physiology, University of Illinois, Champaign-Urbana, Urbana, IL, 61801, USA
| | - Maria I Pérez-Millán
- Institute of Biosciences, Biotechnology and Translational Biology (iB3), University of Buenos Aires, Intendente Güiraldes 2160, Ciudad Universitaria, C1428EGA, Buenos Aires, Argentina.
| | - Shannon W Davis
- Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, SC, 29208, USA.
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3
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Tong J, Chen X, Wang X, Men S, Liu Y, Sun X, Yan D, Wang L. Novel KMT5B variant associated with neurodevelopmental disorder in a Chinese family: A case report. Heliyon 2024; 10:e28686. [PMID: 38571636 PMCID: PMC10988039 DOI: 10.1016/j.heliyon.2024.e28686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/05/2024] Open
Abstract
Background We report here the clinical and genetic features of KMT5B-related neurodevelopmental disorder caused by a novel heterozygous frameshift variant in KMT5B in a Chinese family. Case presentation A 7-year-old Chinese boy with mild-to-moderate intellectual disability, significant language impairment, motor disability, and coordination difficulties presented to our hospital because he "could not speak and did not look at others." He was diagnosed with autism spectrum disorder previously owing to developmental delays in cognition, language expression, and understanding. The child also had variable nonspecific features including macrocephaly, wide button-hole space and nasal bridge, low ear, social behavior disorder, and foot deformities. Exome sequencing (ES) revealed that both the proband and his younger brother had inherited a novel heterozygous frameshift variant c.438_439ins[ASD; KT192064.1:1_310] of the KMT5B gene from their father. Bioinformatics analysis showed that the novel mutation affected the structure of the KMT5B pre-SET domain, mainly in the α-helix region. According to the American College of Medical Genetics and Genomics (ACMG) guidelines, this type of variant was eventually determined to be likely pathogenic (PVS1+PM2_P). Conclusions Our investigation expands the mutation spectrum of KMT5B to help us to better understand KMT5B-related neurodevelopmental disorder.
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Affiliation(s)
| | | | - Xin Wang
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
| | - Shuai Men
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
| | - Yuan Liu
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
| | - Xun Sun
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
| | - Dongmei Yan
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
| | - Leilei Wang
- Lianyungang Maternal and Child Health Hospital, Lianyungang, Jiangsu, China
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4
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Crain AT, Butler MB, Hill CA, Huynh M, McGinty RK, Duronio RJ. Drosophila melanogaster Set8 and L(3)mbt function in gene expression independently of histone H4 lysine 20 methylation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.12.584710. [PMID: 38559189 PMCID: PMC10980064 DOI: 10.1101/2024.03.12.584710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Mono-methylation of Lysine 20 of histone H4 (H4K20me1) is catalyzed by Set8 and thought to play important roles in many aspects of genome function that are mediated by H4K20me-binding proteins. We interrogated this model in a developing animal by comparing in parallel the transcriptomes of Set8 null , H4 K20R/A , and l(3)mbt mutant Drosophila melanogaster . We found that the gene expression profiles of H4 K20A and H4 K20R larvae are markedly different than Set8 null larvae despite similar reductions in H4K20me1. Set8 null mutant cells have a severely disrupted transcriptome and fail to proliferate in vivo , but these phenotypes are not recapitulated by mutation of H4 K20 indicating that the developmental defects of Set8 null animals are largely due to H4K20me1-independent effects on gene expression. Further, the H4K20me1 binding protein L(3)mbt is recruited to the transcription start sites of most genes independently of H4K20me even though genes bound by L(3)mbt have high levels of H4K20me1. Moreover, both Set8 and L(3)mbt bind to purified H4K20R nucleosomes in vitro. We conclude that gene expression changes in Set8 null and H4 K20 mutants cannot be explained by loss of H4K20me1 or L(3)mbt binding to chromatin, and therefore that H4K20me1 does not play a large role in gene expression.
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5
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Papadaki S, Piperi C. Impact of Histone Lysine Methyltransferase SUV4-20H2 on Cancer Onset and Progression with Therapeutic Potential. Int J Mol Sci 2024; 25:2498. [PMID: 38473745 DOI: 10.3390/ijms25052498] [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: 01/26/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
Histone lysine methyltransferase SUV4-20H2, a member of the suppressor of variegation 4-20 homolog (SUV4-20) family, has a critical impact on the regulation of chromatin structure and gene expression. This methyltransferase establishes the trimethylation of histone H4 lysine 20 (H4K20me3), a repressive histone mark that affects several cellular processes. Deregulated SUV4-20H2 activity has been associated with altered chromatin dynamics, leading to the misregulation of key genes involved in cell cycle control, apoptosis and DNA repair. Emerging research evidence indicates that SUV4-20H2 acts as a potential epigenetic modifier, contributing to the development and progression of several malignancies, including breast, colon and lung cancer, as well as renal, hepatocellular and pancreatic cancer. Understanding the molecular mechanisms that underlie SUV4-20H2-mediated effects on chromatin structure and gene expression may provide valuable insights into novel therapeutic strategies for targeting epigenetic alterations in cancer. Herein, we discuss structural and functional aspects of SUV4-20H2 in cancer onset, progression and prognosis, along with current targeting options.
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Affiliation(s)
- Stela Papadaki
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, 11527 Athens, Greece
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, 11527 Athens, Greece
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6
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Huang L, Wang Y, Long H, Zhu H, Wen Z, Zhang L, Zhang W, Guo Z, Wang L, Tang F, Hu J, Bao K, Zhu P, Li G, Zhou Z. Structural insight into H4K20 methylation on H2A.Z-nucleosome by SUV420H1. Mol Cell 2023; 83:2884-2895.e7. [PMID: 37536340 DOI: 10.1016/j.molcel.2023.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/29/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023]
Abstract
DNA replication ensures the accurate transmission of genetic information during the cell cycle. Histone variant H2A.Z is crucial for early replication origins licensing and activation in which SUV420H1 preferentially recognizes H2A.Z-nucleosome and deposits H4 lysine 20 dimethylation (H4K20me2) on replication origins. Here, we report the cryo-EM structures of SUV420H1 bound to H2A.Z-nucleosome or H2A-nucleosome and demonstrate that SUV420H1 directly interacts with H4 N-terminal tail, the DNA, and the acidic patch in the nucleosome. The H4 (1-24) forms a lasso-shaped structure that stabilizes the SUV420H1-nucleosome complex and precisely projects the H4K20 residue into the SUV420H1 catalytic center. In vitro and in vivo analyses reveal a crucial role of the SUV420H1 KR loop (residues 214-223), which lies close to the H2A.Z-specific residues D97/S98, in H2A.Z-nucleosome preferential recognition. Together, our findings elucidate how SUV420H1 recognizes nucleosomes to ensure site-specific H4K20me2 modification and provide insights into how SUV420H1 preferentially recognizes H2A.Z nucleosome.
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Affiliation(s)
- Li Huang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Youwang Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haizhen Long
- Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen 518132, China.
| | - Haoqiang Zhu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zengqi Wen
- School of Medicine, Sun Yat-sen University, Shenzhen 518107, China
| | - Liwei Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenhao Zhang
- Ministry of Education (MOE) Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhenqian Guo
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Longge Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangyi Tang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Hu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Keyan Bao
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Zhu
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guohong Li
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Hubei Key Laboratory of Cell Homeostasis, College of Life Sciences, TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan 430072, China.
| | - Zheng Zhou
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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7
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Abini-Agbomson S, Gretarsson K, Shih RM, Hsieh L, Lou T, De Ioannes P, Vasilyev N, Lee R, Wang M, Simon MD, Armache JP, Nudler E, Narlikar G, Liu S, Lu C, Armache KJ. Catalytic and non-catalytic mechanisms of histone H4 lysine 20 methyltransferase SUV420H1. Mol Cell 2023; 83:2872-2883.e7. [PMID: 37595555 DOI: 10.1016/j.molcel.2023.07.020] [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: 01/18/2023] [Revised: 06/12/2023] [Accepted: 07/20/2023] [Indexed: 08/20/2023]
Abstract
SUV420H1 di- and tri-methylates histone H4 lysine 20 (H4K20me2/H4K20me3) and plays crucial roles in DNA replication, repair, and heterochromatin formation. It is dysregulated in several cancers. Many of these processes were linked to its catalytic activity. However, deletion and inhibition of SUV420H1 have shown distinct phenotypes, suggesting that the enzyme likely has uncharacterized non-catalytic activities. Our cryoelectron microscopy (cryo-EM), biochemical, biophysical, and cellular analyses reveal how SUV420H1 recognizes its nucleosome substrates, and how histone variant H2A.Z stimulates its catalytic activity. SUV420H1 binding to nucleosomes causes a dramatic detachment of nucleosomal DNA from the histone octamer, which is a non-catalytic activity. We hypothesize that this regulates the accessibility of large macromolecular complexes to chromatin. We show that SUV420H1 can promote chromatin condensation, another non-catalytic activity that we speculate is needed for its heterochromatin functions. Together, our studies uncover and characterize the catalytic and non-catalytic mechanisms of SUV420H1, a key histone methyltransferase that plays an essential role in genomic stability.
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Affiliation(s)
- Stephen Abini-Agbomson
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Kristjan Gretarsson
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Rochelle M Shih
- Laboratory of Nanoscale Biophysics and Biochemistry, The Rockefeller University, New York, NY, USA
| | - Laura Hsieh
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Tracy Lou
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Pablo De Ioannes
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Nikita Vasilyev
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA; Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Rachel Lee
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Miao Wang
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Matthew D Simon
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Jean-Paul Armache
- Department of Biochemistry and Molecular Biology and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Evgeny Nudler
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA; Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Geeta Narlikar
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Shixin Liu
- Laboratory of Nanoscale Biophysics and Biochemistry, The Rockefeller University, New York, NY, USA
| | - Chao Lu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Karim-Jean Armache
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA.
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8
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Abini-Agbomson S, Gretarsson K, Shih RM, Hsieh L, Lou T, De Ioannes P, Vasilyev N, Lee R, Wang M, Simon M, Armache JP, Nudler E, Narlikar G, Liu S, Lu C, Armache KJ. Catalytic and non-catalytic mechanisms of histone H4 lysine 20 methyltransferase SUV420H1. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.17.533220. [PMID: 36993485 PMCID: PMC10055266 DOI: 10.1101/2023.03.17.533220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The intricate regulation of chromatin plays a key role in controlling genome architecture and accessibility. Histone lysine methyltransferases regulate chromatin by catalyzing the methylation of specific histone residues but are also hypothesized to have equally important non-catalytic roles. SUV420H1 di- and tri-methylates histone H4 lysine 20 (H4K20me2/me3) and plays crucial roles in DNA replication, repair, and heterochromatin formation, and is dysregulated in several cancers. Many of these processes were linked to its catalytic activity. However, deletion and inhibition of SUV420H1 have shown distinct phenotypes suggesting the enzyme likely has uncharacterized non-catalytic activities. To characterize the catalytic and non-catalytic mechanisms SUV420H1 uses to modify chromatin, we determined cryo- EM structures of SUV420H1 complexes with nucleosomes containing histone H2A or its variant H2A.Z. Our structural, biochemical, biophysical, and cellular analyses reveal how both SUV420H1 recognizes its substrate and H2A.Z stimulates its activity, and show that SUV420H1 binding to nucleosomes causes a dramatic detachment of nucleosomal DNA from histone octamer. We hypothesize that this detachment increases DNA accessibility to large macromolecular complexes, a prerequisite for DNA replication and repair. We also show that SUV420H1 can promote chromatin condensates, another non-catalytic role that we speculate is needed for its heterochromatin functions. Together, our studies uncover and characterize the catalytic and non-catalytic mechanisms of SUV420H1, a key histone methyltransferase that plays an essential role in genomic stability.
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Affiliation(s)
- Stephen Abini-Agbomson
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Kristjan Gretarsson
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Rochelle M. Shih
- Laboratory of Nanoscale Biophysics and Biochemistry, The Rockefeller University, New York, NY, USA
| | - Laura Hsieh
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Tracy Lou
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Pablo De Ioannes
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Nikita Vasilyev
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Rachel Lee
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Miao Wang
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
| | - Matthew Simon
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Jean-Paul Armache
- Department of Biochemistry and Molecular Biology and the Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
| | - Evgeny Nudler
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Geeta Narlikar
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Shixin Liu
- Laboratory of Nanoscale Biophysics and Biochemistry, The Rockefeller University, New York, NY, USA
| | - Chao Lu
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Karim-Jean Armache
- Department of Biochemistry and Molecular Pharmacology, New York University Grossman School of Medicine, New York, NY, USA
- Lead contact
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9
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Zhao YY, Xu XL, Deng H, Wang KN, Rahman A, Ma Y, Shaik F, Wang CM, Qian P, Guo H. Structural and Energetic Origin of Different Product Specificities and Activities for SETD3 and Its Mutants on the Methylation of the β-Actin H73K Peptide: Insights from a QM/MM Study. J Chem Theory Comput 2023; 19:349-362. [PMID: 36520638 DOI: 10.1021/acs.jctc.2c00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The methylation of the lysine residue can affect some fundamental biological processes, and specific biological effects of the methylations are often related to product specificity of methyltransferases. The question remains concerning how active-site structural features and dynamics control the activity as well as the number (1, 2, or 3) of methyl groups on methyl lysine products. SET domain containing protein 3 (SETD3) has been identified recently as the β-actin histidine73-N3 methyltransferase, and also, it has a weak methylation activity on the H73K β-actin peptide for which the target H73 residue is mutated into K73. Interestingly, the K73 methylation activity of SETD3 increases significantly as a result of the N255 → A or N255 → F/W273 → A mutation, and the N255A product specificity also differs from that of wild-type. Here, we performed QM/MM molecular dynamics and potential of mean force (PMF) simulations for SETD3 and its mutants (N255A and N255F/W273A) to study how SETD3 and its mutants could have different product specificities and activities for the K73 methylation. The PMF simulations show that the barrier for the first methylation of K73 is higher compared to the barrier of the H73 methylation in SETD3. Moreover, the second methylation of K73 has been found to have a barrier from the free energy simulation that is higher by 2.2 kcal/mol compared to the barrier of the first methyl transfer to K73, agreeing with the suggestion that SETD3 is a monomethylase. For the first, second, and third methylations of K73 in the N255A mutant, the barriers obtained from the PMF simulations for transferring the second and third methyl groups are found to be lower relative to the barrier for the first methyl transfer. Thus, N255A can be considered as a trimethyl lysine methyltransferase. In addition, for the first K73 methylation, the activities from the PMF simulations follow the order of N255F/W273A > N255A > WT, in agreement with experiments. The examination of the structural and dynamic results at the active sites provides better understanding of different product specificities and activities for the K73 methylations in SETD3 and its mutants. It is demonstrated that the existence of well-balanced interactions at the active site leading to the near attack conformation is of crucial importance for the efficient methyl transfers. Moreover, the presence of potential interactions (e.g., the C-H···O and cation-π interactions) that are strengthening at the transition state can also be important. Furthermore, the activity as well as product specificity of the K73 methylation also seems to be controlled by certain active-site water molecules which may be released to provide extra space for the addition of more methyl groups on K73.
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Affiliation(s)
- Yuan-Yuan Zhao
- Chemistry and Material Science Faculty, Shandong Agricultural University, Taian 271018, P. R. China
| | - Xiao-Long Xu
- Chemistry and Material Science Faculty, Shandong Agricultural University, Taian 271018, P. R. China
| | - Hao Deng
- Chemistry and Material Science Faculty, Shandong Agricultural University, Taian 271018, P. R. China
| | - Kang-Ning Wang
- Chemistry and Material Science Faculty, Shandong Agricultural University, Taian 271018, P. R. China
| | - Adua Rahman
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Yue Ma
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Fathima Shaik
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Chun-Mei Wang
- Network Technology Center, Fushun Vocational Technical Institute, Fushun 110172, P. R. China
| | - Ping Qian
- Chemistry and Material Science Faculty, Shandong Agricultural University, Taian 271018, P. R. China.,Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Taian 271018, P. R. China
| | - Hong Guo
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, United States
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10
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Hickenlooper SM, Davis K, Szulik MW, Sheikh H, Miller M, Valdez S, Bia R, Franklin S. Histone H4K20 Trimethylation Is Decreased in Murine Models of Heart Disease. ACS OMEGA 2022; 7:30710-30719. [PMID: 36092581 PMCID: PMC9453978 DOI: 10.1021/acsomega.2c00984] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Heart disease is the leading cause of death in the developed world, and its comorbidities such as hypertension, diabetes, and heart failure are accompanied by major transcriptomic changes in the heart. During cardiac dysfunction, which leads to heart failure, there are global epigenetic alterations to chromatin that occur concomitantly with morphological changes in the heart in response to acute and chronic stress. These epigenetic alterations include the reversible methylation of lysine residues on histone proteins. Lysine methylations on histones H3K4 and H3K9 were among the first methylated lysine residues identified and have been linked to gene activation and silencing, respectively. However, much less is known regarding other methylated histone residues, including histone H4K20. Trimethylation of histone H4K20 has been shown to repress gene expression; however, this modification has never been examined in the heart. Here, we utilized immunoblotting and mass spectrometry to quantify histone H4K20 trimethylation in three models of cardiac dysfunction. Our results show that lysine methylation at this site is differentially regulated in the cardiomyocyte, leading to increased H4K20 trimethylation during acute hypertrophic stress in cell models and decreased H4K20 trimethylation during sustained ischemic injury and cardiac dysfunction in animal models. In addition, we examined publicly available data sets to analyze enzymes that regulate H4K20 methylation and identified two demethylases (KDM7B and KDM7C) and two methyltransferases (KMT5A and SMYD5) that were all differentially expressed in heart failure patients. This is the first study to examine histone H4K20 trimethylation in the heart and to determine how this post-translational modification is differentially regulated in multiple models of cardiac disease.
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Affiliation(s)
- Samuel M. Hickenlooper
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Kathryn Davis
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Marta W. Szulik
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Hanin Sheikh
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Mickey Miller
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Steven Valdez
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Ryan Bia
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
| | - Sarah Franklin
- Nora
Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, Utah 84112, United States
- Division
of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, Utah 84132, United States
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11
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Trush VV, Feller C, Li ASM, Allali-Hassani A, Szewczyk MM, Chau I, Eram MS, Jiang B, Luu R, Zhang F, Barsyte-Lovejoy D, Aebersold R, Arrowsmith CH, Vedadi M. Enzymatic nucleosome acetylation selectively affects activity of histone methyltransferases in vitro. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2022; 1865:194845. [PMID: 35907431 DOI: 10.1016/j.bbagrm.2022.194845] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/23/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
Posttranslational modification of histones plays a critical role in regulation of gene expression. These modifications include methylation and acetylation that work in combination to establish transcriptionally active or repressive chromatin states. Histone methyltransferases (HMTs) often have variable levels of activity in vitro depending on the form of substrate used. For example, certain HMTs prefer nucleosomes extracted from human or chicken cells as substrate compared to recombinant nucleosomes reconstituted from bacterially produced histones. We considered that pre-existing histone modifications in the extracted nucleosomes can affect the efficiency of catalysis by HMTs, suggesting functional cross-talk between histone-modifying enzymes within a complex network of interdependent activities. Here we systematically investigated the effect of nucleosome acetylation by EP300, GCN5L2 (KAT2A) and MYST1 (MOF) on histone 3 lysine 4 (H3K4), H3K9 and H4K20 methylation of nucleosomes by nine HMTs (MLL1, MLL3, SET1B, G9a, SETDB1, SUV39H1, SUV39H2, SUV420H1 and SUV420H2) in vitro. Our full kinetic characterization data indicate that site-specific acetylation of nucleosomal histones by specific acetyltransferases can create nucleosomes that are better substrates for specific HMTs. This includes significant increases in catalytic efficiencies of SETDB1, G9a and SUV420H2 after nucleosome acetylation in vitro.
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Affiliation(s)
- Viacheslav V Trush
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Christian Feller
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, HPM H 25, Otto Stern Weg 2, 8093 Zurich, Switzerland
| | - Alice Shi Ming Li
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | | | - Magdalena M Szewczyk
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Irene Chau
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Mohammad S Eram
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada
| | - Boya Jiang
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Raymond Luu
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada
| | - Fangfei Zhang
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, HPM H 25, Otto Stern Weg 2, 8093 Zurich, Switzerland
| | - Dalia Barsyte-Lovejoy
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada; Nature Research Center, Vilnius, Akademijos 2, Lithuania
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, HPM H 25, Otto Stern Weg 2, 8093 Zurich, Switzerland; Faculty of Science, University of Zurich, Zurich, Switzerland
| | - Cheryl H Arrowsmith
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada; Princess Margaret Cancer Centre and Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 2M9, Canada
| | - Masoud Vedadi
- Structural Genomics Consortium, University of Toronto, Toronto, ON M5G 1L7, Canada; Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON M5S 1A8, Canada.
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12
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Ho CH, Takizawa Y, Kobayashi W, Arimura Y, Kimura H, Kurumizaka H. Structural basis of nucleosomal histone H4 lysine 20 methylation by SET8 methyltransferase. Life Sci Alliance 2021; 4:4/4/e202000919. [PMID: 33574035 PMCID: PMC7893823 DOI: 10.26508/lsa.202000919] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/07/2021] [Accepted: 01/14/2021] [Indexed: 11/26/2022] Open
Abstract
Cryo-EM structures of the human SET8–nucleosome complexes reveal the mechanism by which the SET8 methyltransferase binds the nucleosome and specifically recognizes the histone H4 lysine-20 residue. SET8 is solely responsible for histone H4 lysine-20 (H4K20) monomethylation, which preferentially occurs in nucleosomal H4. However, the underlying mechanism by which SET8 specifically promotes the H4K20 monomethylation in the nucleosome has not been elucidated. Here, we report the cryo-EM structures of the human SET8–nucleosome complexes with histone H3 and the centromeric H3 variant, CENP-A. Surprisingly, we found that the overall cryo-EM structures of the SET8–nucleosome complexes are substantially different from the previous crystal structure models. In the complexes with H3 and CENP-A nucleosomes, SET8 specifically binds the nucleosomal acidic patch via an arginine anchor, composed of the Arg188 and Arg192 residues. Mutational analyses revealed that the interaction between the SET8 arginine anchor and the nucleosomal acidic patch plays an essential role in the H4K20 monomethylation activity. These results provide the groundwork for understanding the mechanism by which SET8 specifically accomplishes the H4K20 monomethylation in the nucleosome.
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Affiliation(s)
- Cheng-Han Ho
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan.,Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Yoshimasa Takizawa
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Wataru Kobayashi
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan.,Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Yasuhiro Arimura
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Kimura
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Hitoshi Kurumizaka
- Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan .,Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan.,Graduate School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
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13
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Bhat KP, Ümit Kaniskan H, Jin J, Gozani O. Epigenetics and beyond: targeting writers of protein lysine methylation to treat disease. Nat Rev Drug Discov 2021; 20:265-286. [PMID: 33469207 DOI: 10.1038/s41573-020-00108-x] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 02/07/2023]
Abstract
Protein lysine methylation is a crucial post-translational modification that regulates the functions of both histone and non-histone proteins. Deregulation of the enzymes or 'writers' of protein lysine methylation, lysine methyltransferases (KMTs), is implicated in the cause of many diseases, including cancer, mental health disorders and developmental disorders. Over the past decade, significant advances have been made in developing drugs to target KMTs that are involved in histone methylation and epigenetic regulation. The first of these inhibitors, tazemetostat, was recently approved for the treatment of epithelioid sarcoma and follicular lymphoma, and several more are in clinical and preclinical evaluation. Beyond chromatin, the many KMTs that regulate protein synthesis and other fundamental biological processes are emerging as promising new targets for drug development to treat diverse diseases.
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Affiliation(s)
- Kamakoti P Bhat
- Department of Biology, Stanford University, Stanford, CA, USA
| | - H Ümit Kaniskan
- Mount Sinai Center for Therapeutics Discovery, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA. .,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Or Gozani
- Department of Biology, Stanford University, Stanford, CA, USA.
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14
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Schuh L, Loos C, Pokrovsky D, Imhof A, Rupp RAW, Marr C. H4K20 Methylation Is Differently Regulated by Dilution and Demethylation in Proliferating and Cell-Cycle-Arrested Xenopus Embryos. Cell Syst 2020; 11:653-662.e8. [PMID: 33296683 DOI: 10.1016/j.cels.2020.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/05/2020] [Accepted: 11/11/2020] [Indexed: 11/26/2022]
Abstract
DNA replication during cell division leads to dilution of histone modifications and can thus affect chromatin-mediated gene regulation, raising the question of how the cell-cycle shapes the histone modification landscape, particularly during embryogenesis. We tackled this problem by manipulating the cell cycle during early Xenopus laevis embryogenesis and analyzing in vivo histone H4K20 methylation kinetics. The global distribution of un-, mono-, di-, and tri-methylated histone H4K20 was measured by mass spectrometry in normal and cell-cycle-arrested embryos over time. Using multi-start maximum likelihood optimization and quantitative model selection, we found that three specific biological methylation rate constants were required to explain the measured H4K20 methylation state kinetics. While demethylation is essential for regulating H4K20 methylation kinetics in non-cycling cells, demethylation is very likely dispensable in rapidly dividing cells of early embryos, suggesting that cell-cycle-mediated dilution of H4K20 methylation is an essential regulatory component for shaping its epigenetic landscape during early development. A record of this paper's transparent peer review process is included in the Supplemental Information.
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Affiliation(s)
- Lea Schuh
- Institute of Computational Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg 85764, Germany; Department of Mathematics, Technical University of Munich, Garching 85748, Germany
| | - Carolin Loos
- Institute of Computational Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg 85764, Germany; Department of Mathematics, Technical University of Munich, Garching 85748, Germany; Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Daniil Pokrovsky
- Department of Molecular Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Axel Imhof
- Department of Molecular Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Ralph A W Rupp
- Department of Molecular Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, 82152, Germany
| | - Carsten Marr
- Institute of Computational Biology, Helmholtz Zentrum München-German Research Center for Environmental Health, Neuherberg 85764, Germany.
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15
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Epigenetic Factors That Control Pericentric Heterochromatin Organization in Mammals. Genes (Basel) 2020; 11:genes11060595. [PMID: 32481609 PMCID: PMC7349813 DOI: 10.3390/genes11060595] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/17/2020] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
Pericentric heterochromatin (PCH) is a particular form of constitutive heterochromatin that is localized to both sides of centromeres and that forms silent compartments enriched in repressive marks. These genomic regions contain species-specific repetitive satellite DNA that differs in terms of nucleotide sequences and repeat lengths. In spite of this sequence diversity, PCH is involved in many biological phenomena that are conserved among species, including centromere function, the preservation of genome integrity, the suppression of spurious recombination during meiosis, and the organization of genomic silent compartments in the nucleus. PCH organization and maintenance of its repressive state is tightly regulated by a plethora of factors, including enzymes (e.g., DNA methyltransferases, histone deacetylases, and histone methyltransferases), DNA and histone methylation binding factors (e.g., MECP2 and HP1), chromatin remodeling proteins (e.g., ATRX and DAXX), and non-coding RNAs. This evidence helps us to understand how PCH organization is crucial for genome integrity. It then follows that alterations to the molecular signature of PCH might contribute to the onset of many genetic pathologies and to cancer progression. Here, we describe the most recent updates on the molecular mechanisms known to underlie PCH organization and function.
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16
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Bazopoulou D, Knoefler D, Zheng Y, Ulrich K, Oleson BJ, Xie L, Kim M, Kaufmann A, Lee YT, Dou Y, Chen Y, Quan S, Jakob U. Developmental ROS individualizes organismal stress resistance and lifespan. Nature 2019; 576:301-305. [PMID: 31801997 PMCID: PMC7039399 DOI: 10.1038/s41586-019-1814-y] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 10/18/2019] [Indexed: 02/08/2023]
Abstract
A central aspect of aging research concerns the question of when individuality in lifespan arises1. Here we show that a transient increase in reactive oxygen species (ROS), which occurs naturally during early development in a subpopulation of synchronized Caenorhabditis elegans, sets processes in motion that increase stress resistance, improve redox homeostasis and ultimately prolong lifespan in those animals. We find that these effects are linked to the global ROS-mediated decrease in developmental histone H3K4me3 levels. Studies in HeLa cells confirmed that global H3K4me3 levels are ROS-sensitive and that depletion of H3K4me3 levels increases stress resistance in mammalian cell cultures. In vitro studies identified SET1/MLL histone methyltransferases as redox sensitive units of the H3K4-trimethylating complex of proteins (COMPASS). Our findings implicate a link between early-life events, ROS-sensitive epigenetic marks, stress resistance and lifespan.
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Affiliation(s)
- Daphne Bazopoulou
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Daniela Knoefler
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Yongxin Zheng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.,Shanghai Collaborative Innovation Center for Biomanufacturing (SCICB), Shanghai, China
| | - Kathrin Ulrich
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Bryndon J Oleson
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Lihan Xie
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Minwook Kim
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Anke Kaufmann
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Young-Tae Lee
- Department of Pathology, Michigan Medicine, Ann Arbor, MI, USA
| | - Yali Dou
- Department of Pathology, Michigan Medicine, Ann Arbor, MI, USA
| | - Yong Chen
- State Key Laboratory of Molecular Biology, National Center for Protein Science Shanghai, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, China
| | - Shu Quan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China.,Shanghai Collaborative Innovation Center for Biomanufacturing (SCICB), Shanghai, China
| | - Ursula Jakob
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
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17
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Bröhm A, Elsawy H, Rathert P, Kudithipudi S, Schoch T, Schuhmacher MK, Weirich S, Jeltsch A. Somatic Cancer Mutations in the SUV420H1 Protein Lysine Methyltransferase Modulate Its Catalytic Activity. J Mol Biol 2019; 431:3068-3080. [PMID: 31255706 DOI: 10.1016/j.jmb.2019.06.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 01/16/2023]
Abstract
SUV420H1 is a protein lysine methyltransferase that introduces di- and trimethylation of H4K20 and is frequently mutated in human cancers. We investigated the functional effects of eight somatic cancer mutations on SUV420H1 activity in vitro and in cells. One group of mutations (S255F, K258E, A269V) caused a reduction of the catalytic activity on peptide and nucleosome substrates. The mutated amino acids have putative roles in AdoMet binding and recognition of H4 residue D24. Group 2 mutations (E238V, D249N, E320K) caused a reduction of activity on peptide substrates, which was partially recovered when using nucleosomal substrates. The corresponding residues could have direct or indirect roles in peptide and AdoMet binding, but the effects of the mutations can be overcome by additional interactions between SUV420H1 and the nucleosome substrate. The third group of mutations (S283L, S304Y) showed enhanced activity with peptide substrates when compared with nucleosomal substrates, suggesting that these residues are involved in nucleosomal interaction or allosteric activation of SUV420H1 after nucleosome binding. Group 2 and 3 mutants highlight the role of nucleosomal contacts for SUV420H1 regulation in agreement with the high activity of this enzyme on nucleosomal substrates. Strikingly, seven of the somatic cancer mutations studied here led to a reduction of the catalytic activity of SUV420H1 in cells, suggesting that SUV420H1 activity might have a tumor suppressive function. This could be explained by the role of H4K20me2/3 in DNA repair, suggesting that loss or reduction of SUV420H1 activity could contribute to a mutator phenotype in cancer cells.
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Affiliation(s)
- Alexander Bröhm
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Hany Elsawy
- Department of Chemistry, Faculty of Science, Tanta University, 31527 Tanta, El-Gharbia, Egypt
| | - Philipp Rathert
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Srikanth Kudithipudi
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Tabea Schoch
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Maren Kirstin Schuhmacher
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Sara Weirich
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany
| | - Albert Jeltsch
- Department of Biochemistry, Institute of Biochemistry and Technical Biochemistry, Stuttgart University, Allmandring 31, 70569 Stuttgart, Germany.
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18
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Histone 4 Lysine 20 Methylation: A Case for Neurodevelopmental Disease. BIOLOGY 2019; 8:biology8010011. [PMID: 30832413 PMCID: PMC6466304 DOI: 10.3390/biology8010011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/22/2019] [Accepted: 02/26/2019] [Indexed: 02/07/2023]
Abstract
Neurogenesis is an elegantly coordinated developmental process that must maintain a careful balance of proliferation and differentiation programs to be compatible with life. Due to the fine-tuning required for these processes, epigenetic mechanisms (e.g., DNA methylation and histone modifications) are employed, in addition to changes in mRNA transcription, to regulate gene expression. The purpose of this review is to highlight what we currently know about histone 4 lysine 20 (H4K20) methylation and its role in the developing brain. Utilizing publicly-available RNA-Sequencing data and published literature, we highlight the versatility of H4K20 methyl modifications in mediating diverse cellular events from gene silencing/chromatin compaction to DNA double-stranded break repair. From large-scale human DNA sequencing studies, we further propose that the lysine methyltransferase gene, KMT5B (OMIM: 610881), may fit into a category of epigenetic modifier genes that are critical for typical neurodevelopment, such as EHMT1 and ARID1B, which are associated with Kleefstra syndrome (OMIM: 610253) and Coffin-Siris syndrome (OMIM: 135900), respectively. Based on our current knowledge of the H4K20 methyl modification, we discuss emerging themes and interesting questions on how this histone modification, and particularly KMT5B expression, might impact neurodevelopment along with current challenges and potential avenues for future research.
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Svobodová Kovaříková A, Legartová S, Krejčí J, Bártová E. H3K9me3 and H4K20me3 represent the epigenetic landscape for 53BP1 binding to DNA lesions. Aging (Albany NY) 2018; 10:2585-2605. [PMID: 30312172 PMCID: PMC6224238 DOI: 10.18632/aging.101572] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 09/24/2018] [Indexed: 04/21/2023]
Abstract
Methylation of histones H4 at lysine 20 position (H4K20me), which is functional in DNA repair, represents a binding site for the 53BP1 protein. Here, we show a radiation-induced increase in the level of H4K20me3 while the levels of H4K20me1 and H4K20me2 remained intact. H4K20me3 was significantly pronounced at DNA lesions in only the G1 phase of the cycle, while this histone mark was reduced in very late S and G2 phases when PCNA was recruited to locally micro-irradiated chromatin. H4K20me3 was diminished in locally irradiated Suv39h1/h2 double knockout (dn) fibroblasts, and the same phenomenon was observed for H3K9me3 and its binding partner, the HP1β protein. Immunoprecipitation showed the existence of an interaction between H3K9me3-53BP1 and H4K20me3-53BP1; however, HP1β did not interact with 53BP1. Together, H3K9me3 and H4K20me3 represent epigenetic markers that are important for the function of the 53BP1 protein in non-homologous end joining (NHEJ) repair. The very late S phase represents the cell cycle breakpoint when a DDR function of the H4K20me3-53BP1 complex is abrogated due to recruitment of the PCNA protein and other DNA repair factors of homologous recombination to DNA lesions.
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Affiliation(s)
| | - Soňa Legartová
- Institute of Biophysics of the Czech Academy of Sciences, Brno, 61265, Czech Republic
| | - Jana Krejčí
- Institute of Biophysics of the Czech Academy of Sciences, Brno, 61265, Czech Republic
| | - Eva Bártová
- Institute of Biophysics of the Czech Academy of Sciences, Brno, 61265, Czech Republic
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20
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Wang T, Holt MV, Young NL. The histone H4 proteoform dynamics in response to SUV4-20 inhibition reveals single molecule mechanisms of inhibitor resistance. Epigenetics Chromatin 2018; 11:29. [PMID: 29880017 PMCID: PMC5992683 DOI: 10.1186/s13072-018-0198-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 05/27/2018] [Indexed: 12/25/2022] Open
Abstract
Background The dynamics of histone post-translational modifications (PTMs) are sparsely described, especially in their true physiological context of proteoforms (single histone molecules harboring combinations of PTMs). Methods Here we time-resolve the response of cells to SUV4-20 methyltransferase inhibition and unbiasedly quantitate the dynamic response of histone H4 PTMs and proteoforms. Results Contrary to the prevailing dogma, cells exhibit an immediate-early response with changes to histone proteoforms. Cells also recover to basal-like conditions upon removal of epigenetic inhibitors rapidly. Inhibition of SUV4-20 results in decreased H4{K20me2}; however, no effects on H4{K20me3} are observed, implying that another enzyme mediates H4K20me3. Most surprisingly, SUV4-20 inhibition results in an increase in histone H4 acetylation attributable to proteoforms containing K20me2. This led us to hypothesize that hyperacetylated proteoforms protect K20me2 from demethylation as an evolved compensatory mechanism. This concept is supported by subsequent results that pretreatment with an HDACi substantially diminishes the effects of SUV4-20 inhibition in prone cells and is further confirmed by HATi-facilitating SUV4-20 inhibition to decrease discrete H4{K20me2} in resistant cells. Conclusions The chromatin response of cells to sudden perturbations is significantly faster, nuanced and complex than previously described. The persistent nature of chromatin regulation may be achieved by a network of dynamic equilibria with compensatory mechanisms that operate at the proteoform level. Electronic supplementary material The online version of this article (10.1186/s13072-018-0198-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tao Wang
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Matthew V Holt
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Nicolas L Young
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA. .,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA.
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21
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Paquin KL, Howlett NG. Understanding the Histone DNA Repair Code: H4K20me2 Makes Its Mark. Mol Cancer Res 2018; 16:1335-1345. [PMID: 29858375 DOI: 10.1158/1541-7786.mcr-17-0688] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/28/2018] [Accepted: 05/22/2018] [Indexed: 12/11/2022]
Abstract
Chromatin is a highly compact structure that must be rapidly rearranged in order for DNA repair proteins to access sites of damage and facilitate timely and efficient repair. Chromatin plasticity is achieved through multiple processes, including the posttranslational modification of histone tails. In recent years, the impact of histone posttranslational modification on the DNA damage response has become increasingly well recognized, and chromatin plasticity has been firmly linked to efficient DNA repair. One particularly important histone posttranslational modification process is methylation. Here, we focus on the regulation and function of H4K20 methylation (H4K20me) in the DNA damage response and describe the writers, erasers, and readers of this important chromatin mark as well as the combinatorial histone posttranslational modifications that modulate H4K20me recognition. Finally, we discuss the central role of H4K20me in determining if DNA double-strand breaks (DSB) are repaired by the error-prone, nonhomologous DNA end joining pathway or the error-free, homologous recombination pathway. This review article discusses the regulation and function of H4K20me2 in DNA DSB repair and outlines the components and modifications that modulate this important chromatin mark and its fundamental impact on DSB repair pathway choice. Mol Cancer Res; 16(9); 1335-45. ©2018 AACR.
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Affiliation(s)
- Karissa L Paquin
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, Rhode Island
| | - Niall G Howlett
- Department of Cell and Molecular Biology, University of Rhode Island, Kingston, Rhode Island.
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22
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Qian P, Guo H, Wang L, Guo H. QM/MM Investigation of Substrate and Product Specificities of Suv4-20h2: How Does This Enzyme Generate Dimethylated H4K20 from Monomethylated Substrate? J Chem Theory Comput 2017; 13:2977-2986. [PMID: 28489369 DOI: 10.1021/acs.jctc.7b00069] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protein lysine methyltransferases (PKMTs) catalyze the methylation of lysine residues on histone proteins in the regulation of chromatin structure and gene expression. In contrast to many other PKMTs for which unmodified lysine is the methylation target, the enzymes in the Suv4-20 family are able to generate dimethylated product (H4K20me2) based exclusively on the monomethylated H4K20 substrate (H4K20me1). The origin of such substrate/product specificity is still not clear. Here, molecular dynamics (MD) and free energy (potential of mean force) simulations are undertaken using quantum mechanical/molecular mechanical (QM/MM) potentials to understand the substrate/product specificities of Suv4-20h2, a member of the Suv4-20 family. The free energy barriers for mono-, di-, and trimethylation in Suv4-20h2 obtained from the simulations are found to be well correlated with the specificities observed experimentally with the allowed dimethylation based on the H4K20me1 substrate and prohibited monomethylation and trimethylation based on H4K20 and H4K20me2, respectively. It is demonstrated that the reason for the relatively efficient dimethylation is an effective transition state (TS) stabilization through strengthening the CH···O interactions as well as the presence of a cation-π interaction at the transition state. The simulations also show that the failures of Suv4-20h2 to catalyze monomethylation and trimethylation are due, respectively, to a less effective TS stabilization and inability of the reactant complex containing H4K20me2 to adopt a reactive (near attack) configuration for methyl transfer. The results suggest that care must be exercised in the prediction of the substrate specificity based only on the existence of near attack configurations in substrate complexes.
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Affiliation(s)
- Ping Qian
- Chemistry and Material Science Faculty, Shandong Agricultural University , Tai'an 271018, Shandong, Peoples Republic of China
| | - Haobo Guo
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee , Knoxville, Tennessee 37996, United States
| | - Liang Wang
- Chemistry and Material Science Faculty, Shandong Agricultural University , Tai'an 271018, Shandong, Peoples Republic of China
| | - Hong Guo
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee , Knoxville, Tennessee 37996, United States.,UT/ORNL Center for Molecular Biophysics, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37830, United States
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23
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Farzaneh K, Thaler R, Paradise CR, Deyle DR, Julio MKD, Galindo M, Gordon JA, Stein GS, Dudakovic A, van Wijnen AJ. Histone H4 Methyltransferase Suv420h2 Maintains Fidelity of Osteoblast Differentiation. J Cell Biochem 2017; 118:1262-1272. [PMID: 27862226 PMCID: PMC5357582 DOI: 10.1002/jcb.25787] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 11/07/2016] [Indexed: 12/13/2022]
Abstract
Osteogenic lineage commitment and progression is controlled by multiple signaling pathways (e.g., WNT, BMP, FGF) that converge on bone-related transcription factors. Access of osteogenic transcription factors to chromatin is controlled by epigenetic regulators that generate post-translational modifications of histones ("histone code"), as well as read, edit and/or erase these modifications. Our understanding of the biological role of epigenetic regulators in osteoblast differentiation remains limited. Therefore, we performed next-generation RNA sequencing (RNA-seq) and established which chromatin-related proteins are robustly expressed in mouse bone tissues (e.g., fracture callus, calvarial bone). These studies also revealed that cells with increased osteogenic potential have higher levels of the H4K20 methyl transferase Suv420h2 compared to other methyl transferases (e.g., Suv39h1, Suv39h2, Suv420h1, Ezh1, Ezh2). We find that all six epigenetic regulators are transiently expressed at different stages of osteoblast differentiation in culture, with maximal mRNAs levels of Suv39h1 and Suv39h2 (at day 3) preceding maximal expression of Suv420h1 and Suv420h2 (at day 7) and developmental stages that reflect, respectively, early and later collagen matrix deposition. Loss of function analysis of Suv420h2 by siRNA depletion shows loss of H4K20 methylation and decreased expression of bone biomarkers (e.g., alkaline phosphatase/Alpl) and osteogenic transcription factors (e.g., Sp7/Osterix). Furthermore, Suv420h2 is required for matrix mineralization during osteoblast differentiation. We conclude that Suv420h2 controls the H4K20 methylome of osteoblasts and is critical for normal progression of osteoblastogenesis. J. Cell. Biochem. 118: 1262-1272, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Khani Farzaneh
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Mario Galindo
- Millennium Institute on Immunology and Immunotherapy, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Jonathan A. Gordon
- Department of Biochemistry, University of Vermont College of Medicine, 89 Beaumont Avenue, Burlington, Vermont 05405
| | - Gary S. Stein
- Department of Biochemistry, University of Vermont College of Medicine, 89 Beaumont Avenue, Burlington, Vermont 05405
| | - Amel Dudakovic
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Andre J. van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
- Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
- Corresponding author: Andre J. van Wijnen, Ph.D., Mayo Clinic, 200 First Street SW, Rochester, MN 55905, Phone: 507- 293-2105, Fax: 507-284-5075,
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Hyun K, Jeon J, Park K, Kim J. Writing, erasing and reading histone lysine methylations. Exp Mol Med 2017; 49:e324. [PMID: 28450737 PMCID: PMC6130214 DOI: 10.1038/emm.2017.11] [Citation(s) in RCA: 676] [Impact Index Per Article: 96.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 02/08/2023] Open
Abstract
Histone modifications are key epigenetic regulatory features that have important roles in many cellular events. Lysine methylations mark various sites on the tail and globular domains of histones and their levels are precisely balanced by the action of methyltransferases ('writers') and demethylases ('erasers'). In addition, distinct effector proteins ('readers') recognize specific methyl-lysines in a manner that depends on the neighboring amino-acid sequence and methylation state. Misregulation of histone lysine methylation has been implicated in several cancers and developmental defects. Therefore, histone lysine methylation has been considered a potential therapeutic target, and clinical trials of several inhibitors of this process have shown promising results. A more detailed understanding of histone lysine methylation is necessary for elucidating complex biological processes and, ultimately, for developing and improving disease treatments. This review summarizes enzymes responsible for histone lysine methylation and demethylation and how histone lysine methylation contributes to various biological processes.
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Affiliation(s)
- Kwangbeom Hyun
- Laboratory of Eukaryotic Transcription, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Jongcheol Jeon
- Laboratory of Eukaryotic Transcription, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Kihyun Park
- Laboratory of Eukaryotic Transcription, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
| | - Jaehoon Kim
- Laboratory of Eukaryotic Transcription, Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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25
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Delaney CE, Chen AT, Graniel JV, Dumas KJ, Hu PJ. A histone H4 lysine 20 methyltransferase couples environmental cues to sensory neuron control of developmental plasticity. Development 2017; 144:1273-1282. [PMID: 28209779 PMCID: PMC5399626 DOI: 10.1242/dev.145722] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Accepted: 02/02/2017] [Indexed: 01/23/2023]
Abstract
Animals change developmental fates in response to external cues. In the nematode Caenorhabditis elegans, unfavorable environmental conditions induce a state of diapause known as dauer by inhibiting the conserved DAF-2 insulin-like signaling (ILS) pathway through incompletely understood mechanisms. We have previously established a role for the C. elegans dosage compensation protein DPY-21 in the control of dauer arrest and DAF-2 ILS. Here, we show that the histone H4 lysine 20 methyltransferase SET-4, which also influences dosage compensation, promotes dauer arrest in part by repressing the X-linked ins-9 gene, which encodes a new agonist insulin-like peptide (ILP) expressed specifically in the paired ASI sensory neurons that are required for dauer bypass. ins-9 repression in dauer-constitutive mutants requires DPY-21, SET-4 and the FoxO transcription factor DAF-16, which is the main target of DAF-2 ILS. By contrast, autosomal genes encoding major agonist ILPs that promote reproductive development are not repressed by DPY-21, SET-4 or DAF-16/FoxO. Our results implicate SET-4 as a sensory rheostat that reinforces developmental fates in response to environmental cues by modulating autocrine and paracrine DAF-2 ILS.
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Affiliation(s)
- Colin E Delaney
- Departments of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Albert T Chen
- Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jacqueline V Graniel
- Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Kathleen J Dumas
- Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Patrick J Hu
- Departments of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA .,Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, USA.,Institute of Gerontology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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26
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SUV4-20 activity in the preimplantation mouse embryo controls timely replication. Genes Dev 2016; 30:2513-2526. [PMID: 27920088 PMCID: PMC5159666 DOI: 10.1101/gad.288969.116] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022]
Abstract
Eid et al. show that ectopic expression of Suv4-20h2 leads to sustained levels of H4K20me3, developmental arrest, and defects in S-phase progression. The developmental phenotype can be partially overcome through inhibition of the ATR pathway, suggesting that the main function for the remodeling of H4K20me3 after fertilization is to allow the timely and coordinated progression of replication. Extensive chromatin remodeling after fertilization is thought to take place to allow a new developmental program to start. This includes dynamic changes in histone methylation and, in particular, the remodeling of constitutive heterochromatic marks such as histone H4 Lys20 trimethylation (H4K20me3). While the essential function of H4K20me1 in preimplantation mouse embryos is well established, the role of the additional H4K20 methylation states through the action of the SUV4-20 methyltransferases has not been addressed. Here we show that Suv4-20h1/h2 are mostly absent in mouse embryos before implantation, underscoring a rapid decrease of H4K20me3 from the two-cell stage onward. We addressed the functional significance of this remodeling by introducing Suv4-20h1 and Suv4-20h2 in early embryos. Ectopic expression of Suv4-20h2 leads to sustained levels of H4K20me3, developmental arrest, and defects in S-phase progression. The developmental phenotype can be partially overcome through inhibition of the ATR pathway, suggesting that the main function for the remodeling of H4K20me3 after fertilization is to allow the timely and coordinated progression of replication. This is in contrast to the replication program in somatic cells, where H4K20me3 has been shown to promote replication origin licensing, and anticipates a different regulation of replication during this early developmental time window.
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27
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Weirich S, Kudithipudi S, Jeltsch A. Specificity of the SUV4-20H1 and SUV4-20H2 protein lysine methyltransferases and methylation of novel substrates. J Mol Biol 2016; 428:2344-2358. [PMID: 27105552 DOI: 10.1016/j.jmb.2016.04.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/08/2016] [Accepted: 04/11/2016] [Indexed: 12/15/2022]
Abstract
The SUV4-20H1 and SUV4-20H2 enzymes methylate histone H4 at K20, and they have overlapping and distinct biological effects. Here, by in vitro methylation studies we confirmed that both the murine SUV4-20H enzymes strongly favor the monomethylated H4K20 peptide substrate. We also show that both enzymes only generate dimethylated H4K20 products. We determined the substrate sequence recognition motif of both enzymes using SPOT peptide arrays showing that SUV4-20H1 recognizes an (RY)-Kme1-(IVLM)-(LFI)-X-D sequence. In contrast, SUV4-20H2 shows less specificity and recognizes an X-Kme1-(IVLMK)-(LVFI)-X-(DEV) sequence, which is partially overlapping with SUV4-20H1 but has relaxed specificity at the -1 and +4 positions (if the target H4K20me1 is positon 0). Based on our data, we identify novel peptide substrates for SUV4-20H1 (K1423 of Zinc finger protein castor homolog 1) and SUV4-20H2 (K1423 of Zinc finger protein castor homolog 1, K215 of Protein Mis18-beta and K308 of Centromere protein U). All these lysine residues were already identified to be methylated in human cells, but the responsible PKMT was not known. In addition, we also tested the activity of SUV4-20H enzymes on ERK1, which was recently reported to be methylated by SUV4-20H1 at K302 and K361. However the sequences surrounding both methylation sites do not fit to the specificity profile of SUV4-20H1 and we could not detect methylation of ERK1 by any of the SUV4-20H enzymes. The possible reasons of this discrepancy and its consequences are discussed.
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Affiliation(s)
- Sara Weirich
- Institute of Biochemistry, Faculty of Chemistry, University Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Srikanth Kudithipudi
- Institute of Biochemistry, Faculty of Chemistry, University Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Albert Jeltsch
- Institute of Biochemistry, Faculty of Chemistry, University Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.
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28
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van Nuland R, Gozani O. Histone H4 Lysine 20 (H4K20) Methylation, Expanding the Signaling Potential of the Proteome One Methyl Moiety at a Time. Mol Cell Proteomics 2015; 15:755-64. [PMID: 26598646 DOI: 10.1074/mcp.r115.054742] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Indexed: 12/13/2022] Open
Abstract
Covalent post-translational modifications (PTMs) of proteins can regulate the structural and functional state of a protein in the absence of primary changes in the underlying sequence. Common PTMs include phosphorylation, acetylation, and methylation. Histone proteins are critical regulators of the genome and are subject to a highly abundant and diverse array of PTMs. To highlight the functional complexity added to the proteome by lysine methylation signaling, here we will focus on lysine methylation of histone proteins, an important modification in the regulation of chromatin and epigenetic processes. We review the signaling pathways and functions associated with a single residue, H4K20, as a model chromatin and clinically important mark that regulates biological processes ranging from the DNA damage response and DNA replication to gene expression and silencing.
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Affiliation(s)
- Rick van Nuland
- From the Department of Biology, Stanford University, Stanford, California 94305
| | - Or Gozani
- From the Department of Biology, Stanford University, Stanford, California 94305
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29
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Concerted activities of distinct H4K20 methyltransferases at DNA double-strand breaks regulate 53BP1 nucleation and NHEJ-directed repair. Cell Rep 2014; 8:430-8. [PMID: 25001286 DOI: 10.1016/j.celrep.2014.06.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/04/2014] [Accepted: 06/09/2014] [Indexed: 12/28/2022] Open
Abstract
Although selective binding of 53BP1 to dimethylated histone H4 lysine 20 (H4K20me2) at DNA double-strand breaks (DSBs) is a necessary and pivotal determinant of nonhomologous end joining (NHEJ)-directed repair, the enzymes that generate H4K20me2 at DSBs were unclear. Here, we determined that the PR-Set7 monomethyltransferase (H4K20me1) regulates de novo H4K20 methylation at DSBs. Rapid recruitment of PR-Set7 to DSBs was dependent on the NHEJ Ku70 protein and necessary for NHEJ-directed repair. PR-Set7 monomethyltransferase activity was required, but insufficient, for H4K20me2 and 53BP1 nucleation at DSBs. We determined that PR-Set7-mediated H4K20me1 facilitates Suv4-20 methyltransferase recruitment and catalysis to generate H4K20me2 necessary for 53BP1 binding. The orchestrated and concerted activities of PR-Set7 and Suv4-20 were required for proficient 53BP1 nucleation and DSB repair. This report identifies PR-Set7 as an essential component of NHEJ and implicates PR-Set7 as a central determinant of NHEJ-directed repair early in mammalian DSB repair pathway choice.
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30
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Molecular basis for substrate recognition by lysine methyltransferases and demethylases. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:1404-15. [PMID: 24946978 DOI: 10.1016/j.bbagrm.2014.06.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 05/16/2014] [Accepted: 06/09/2014] [Indexed: 11/24/2022]
Abstract
Lysine methylation has emerged as a prominent covalent modification in histones and non-histone proteins. This modification has been implicated in numerous genomic processes, including heterochromatinization, cell cycle progression, DNA damage response, DNA replication, genome stability, and epigenetic gene regulation that underpins developmental programs defining cell identity and fate. The site and degree of lysine methylation is dynamically modulated through the enzymatic activities of protein lysine methyltransferases (KMTs) and protein lysine demethylases (KDMs). These enzymes display distinct substrate specificities that in part define their biological functions. This review explores recent progress in elucidating the molecular basis of these specificities, highlighting structural and functional studies of the methyltransferases SUV4-20H1 (KMT5B), SUV4-20H2 (KMT5C), and ATXR5, and the demethylases UTX (KDM6A), JMJD3 (KDM6B), and JMJD2D (KDM4D). We conclude by examining these findings in the context of related KMTs and KDMs and by exploring unresolved questions regarding the specificities and functions of these enzymes.
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31
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Lyons DB, Lomvardas S. Repressive histone methylation: a case study in deterministic versus stochastic gene regulation. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:1373-84. [PMID: 24859457 DOI: 10.1016/j.bbagrm.2014.05.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 04/09/2014] [Accepted: 05/13/2014] [Indexed: 01/21/2023]
Abstract
Transcriptionally repressive histone lysine methylation is used by eukaryotes to tightly control cell fate. Here we explore the importance of this form of regulation in the control of clustered genes in the genome. Two distinctly regulated gene families with important roles in vertebrates are discussed, namely the Hox genes and olfactory receptor genes. Major recent advances in these two fields are compared and contrasted, with an emphasis on the roles of the two different forms of histone trimethylation. We discuss how this repression may impact both the transcriptional output of these loci and the way higher-order chromatin organization is related to their unique control.
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Affiliation(s)
- David B Lyons
- Tetrad Graduate Program, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Stavros Lomvardas
- Tetrad Graduate Program, University of California, San Francisco, San Francisco, CA 94158, USA; Department of Anatomy, University of California San Francisco, CA 94920, USA.
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