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Veiga RN, de Azevedo ALK, de Oliveira JC, Gradia DF. Targeting EphA2: a promising strategy to overcome chemoresistance and drug resistance in cancer. J Mol Med (Berl) 2024; 102:479-493. [PMID: 38393661 DOI: 10.1007/s00109-024-02431-x] [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: 03/29/2023] [Revised: 01/24/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
Erythropoietin-producing hepatocellular A2 (EphA2) is a vital member of the Eph tyrosine kinase receptor family and has been associated with developmental processes. However, it is often overexpressed in tumors and correlates with cancer progression and worse prognosis due to the activation of its noncanonical signaling pathway. Throughout cancer treatment, the emergence of drug-resistant tumor cells is relatively common. Since the early 2000s, researchers have focused on understanding the role of EphA2 in promoting drug resistance in different types of cancer, as well as finding efficient and secure EphA2 inhibitors. In this review, the current knowledge regarding induced resistance by EphA2 in cancer treatment is summarized, and the types of cancer that lead to the most cancer-related deaths are highlighted. Some EphA2 inhibitors were also investigated. Regardless of whether the cancer treatment has reached a drug-resistance stage in EphA2-overexpressing tumors, once EphA2 is involved in cancer progression and aggressiveness, targeting EphA2 is a promising therapeutic strategy, especially in combination with other target-drugs for synergistic effect. For that reason, monoclonal antibodies against EphA2 and inhibitors of this receptor should be investigated for efficacy and drug toxicity.
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Affiliation(s)
- Rafaela Nasser Veiga
- Laboratory of Human Cytogenetics and Oncogenetics, Postgraduate Program in Genetics. Department of Genetics, Universidade Federal Do Paraná, Rua Coronel Francisco Heráclito Dos Santos, 100, Jardim das AméricasCuritiba, CEP, 81531-980, Brazil
| | - Alexandre Luiz Korte de Azevedo
- Laboratory of Human Cytogenetics and Oncogenetics, Postgraduate Program in Genetics. Department of Genetics, Universidade Federal Do Paraná, Rua Coronel Francisco Heráclito Dos Santos, 100, Jardim das AméricasCuritiba, CEP, 81531-980, Brazil
| | - Jaqueline Carvalho de Oliveira
- Laboratory of Human Cytogenetics and Oncogenetics, Postgraduate Program in Genetics. Department of Genetics, Universidade Federal Do Paraná, Rua Coronel Francisco Heráclito Dos Santos, 100, Jardim das AméricasCuritiba, CEP, 81531-980, Brazil
| | - Daniela Fiori Gradia
- Laboratory of Human Cytogenetics and Oncogenetics, Postgraduate Program in Genetics. Department of Genetics, Universidade Federal Do Paraná, Rua Coronel Francisco Heráclito Dos Santos, 100, Jardim das AméricasCuritiba, CEP, 81531-980, Brazil.
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Li Y, Liu Y, Huang X, Ren J. Analysis of protein phosphorylation combining capillary electrophoresis with ATP analog labeling technique. Electrophoresis 2021; 43:548-558. [PMID: 34783369 DOI: 10.1002/elps.202100251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/06/2021] [Accepted: 11/11/2021] [Indexed: 01/02/2023]
Abstract
Protein phosphorylation is one of the most basic mechanisms for regulating and controlling protein biological activity and function, and it is also a very important posttranslational modification process. Protein phosphorylation participates in and regulates many life activities such as signal transduction, gene expression, cell cycle, and so on. In this paper, we propose a method for the determination of the protein phosphorylation combining capillary electrophoresis (CE) with ATP analog labeling technique. We synthesized two new ATP analogs (ATP-NB and ATP-TATD-NB) functionalized by norbornene. Using Abl kinase as a model, we established a method for the determination of the kinase activity in solution and lysate by CE with laser-induced fluorescence detection (CE-LIF). This method was used to evaluate the efficiencies of kinase inhibitors. The IC50 values obtained are basically consistent with the reports. By D-A reaction (inverse electron demand Diels-Alder reaction) to label TZ-BODIPY fluorescence, we also realized the phosphorylation fluorescence detection of substrate peptide. Then, we used fluorescence confocal microscopy imaging technology to study the phosphorylation of proteins in vivo by the D-A reaction of ATP-NB and TZ-BODIPY. Our preliminary results documented that the combination of CE-LIF with analog ATP-NB labeling technique is an effective strategy for the determination of the protein phosphorylation and the kinase activity and for screening of kinase inhibitors. The D-A reaction of ATP-NB and TZ-BODIPY also laid the foundation for the subsequent in situ study of protein phosphorylation.
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Affiliation(s)
- Yue Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Yaoqi Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Xiangyi Huang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Jicun Ren
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, P. R. China
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Kong L, Rodrigues B, Kim JH, He P, Shan L. More than an on-and-off switch: Post-translational modifications of plant pattern recognition receptor complexes. CURRENT OPINION IN PLANT BIOLOGY 2021; 63:102051. [PMID: 34022608 DOI: 10.1016/j.pbi.2021.102051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/31/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
Sensing microbe-associated molecular patterns (MAMPs) by cell surface-resident pattern recognition receptors (PRRs) constitutes a core process in launching a successful immune response. Over the last decade, remarkable progress has been made in delineating the mechanisms of PRR-mediated plant immunity. As the frontline of defense, the homeostasis, activities, and subcellular dynamics of PRR and associated regulators are subjected to tight regulations. The layered protein post-translational modifications, particularly the intertwined phosphorylation and ubiquitylation of PRR complexes, play a central role in regulating PRR signaling outputs and plant immune responses. This review provides an update about the PRR complex regulation by various post-translational modifications and discusses how protein phosphorylation and ubiquitylation act in concert to ensure a rapid, proper, and robust immune response.
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Affiliation(s)
- Liang Kong
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Barbara Rodrigues
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA; Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, 77843, USA
| | - Jun Hyeok Kim
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Ping He
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA
| | - Libo Shan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, 77843, USA.
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4
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Li Y, Huang X, Ren J. Analysis of protein phosphorylation in solution and in cells by using an ATP analogue in combination with fluorescence techniques. Analyst 2021; 146:4506-4514. [PMID: 34190230 DOI: 10.1039/d1an00742d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protein phosphorylation is a very important mechanism for regulating and controlling the activity and function of proteins, and is closely associated with signal transduction, gene expression, cell cycle and other life activities in organisms. In this paper, we proposed a new strategy for studying protein phosphorylation in living cells by combining fluorescence resonance energy transfer (FRET) with a small molecule adenosine 5'-triphosphate (ATP) analogue. We synthesized a new ATP analogue functionalized by norbornene (ATP-NB), and a tetrazine modified fluorescent probe Cyanine3 (TZ-Cy3). Based on the inverse electron demand Diels-Alder (D-A) reaction, ATP-NB phosphorylated proteins in solution and in living cells were in situ labelled with TZ-Cy3. By combining FRET with fluorescence correlation spectroscopy (FRET-FCS) and imaging technology, we established an efficient method for studying the phosphorylation of proteins in solution and in living cells using an ATP analogue instead of natural ATP. We studied the effects of phosphatase inhibitors on the phosphorylation of proteins in living cells. Our results documented that ATP-NB is a small molecule ATP analogue with hydrophobicity, which can penetrate cells and efficiently phosphorylate proteins in living cells. This strategy is well suitable for in situ study of protein phosphorylation in living cells.
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Affiliation(s)
- Yue Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
| | - Xiangyi Huang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
| | - Jicun Ren
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.
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5
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Huang M, Wang Y. GLOBAL AND TARGETED PROFILING OF GTP-BINDING PROTEINS IN BIOLOGICAL SAMPLES BY MASS SPECTROMETRY. MASS SPECTROMETRY REVIEWS 2021; 40:215-235. [PMID: 32519381 PMCID: PMC7725852 DOI: 10.1002/mas.21637] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/04/2020] [Accepted: 05/15/2020] [Indexed: 05/05/2023]
Abstract
GTP-binding proteins are among the most important enzyme families that are involved in a plethora of biological processes. However, owing to the enormous diversity of the nucleotide-binding protein family, comprehensive analyses of the expression level, structure, activity, and regulatory mechanisms of GTP-binding proteins remain challenging with the use of conventional approaches. The many advances in mass spectrometry (MS) instrumentation and data acquisition methods, together with a variety of enrichment approaches in sample preparation, render MS a powerful tool for the comprehensive characterizations of the activities and expression levels of various GTP-binding proteins. We review herein the recent developments in the application of MS-based techniques, together with general and widely used affinity enrichment approaches, for the proteome-wide and targeted capture, identification, and quantification of GTP-binding proteins. The working principles, advantages, and limitations of various strategies for profiling the expression level, activity, posttranslational modifications, and interactome of GTP-binding proteins are discussed. It can be envisaged that future applications of MS-based proteomics will lead to a better understanding about the roles of GTP-binding proteins in different biological processes and human diseases. © 2020 John Wiley & Sons Ltd. Mass Spec Rev.
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Affiliation(s)
- Ming Huang
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
| | - Yinsheng Wang
- Environmental Toxicology Graduate Program, University of California Riverside, Riverside, CA 92521, USA
- Department of Chemistry, University of California Riverside, Riverside, CA 92521, USA
- Correspondence author: Yinsheng Wang. Telephone: (951)827-2700;
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Chen X, Wang T, Rehman AU, Wang Y, Qi J, Li Z, Song C, Wang B, Yang S, Gong Z. Arabidopsis U-box E3 ubiquitin ligase PUB11 negatively regulates drought tolerance by degrading the receptor-like protein kinases LRR1 and KIN7. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:494-509. [PMID: 33347703 DOI: 10.1111/jipb.13058] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/17/2020] [Indexed: 05/06/2023]
Abstract
Both plant receptor-like protein kinases (RLKs) and ubiquitin-mediated proteolysis play crucial roles in plant responses to drought stress. However, the mechanism by which E3 ubiquitin ligases modulate RLKs is poorly understood. In this study, we showed that Arabidopsis PLANT U-BOX PROTEIN 11 (PUB11), an E3 ubiquitin ligase, negatively regulates abscisic acid (ABA)-mediated drought responses. PUB11 interacts with and ubiquitinates two receptor-like protein kinases, LEUCINE RICH REPEAT PROTEIN 1 (LRR1) and KINASE 7 (KIN7), and mediates their degradation during plant responses to drought stress in vitro and in vivo. pub11 mutants were more tolerant, whereas lrr1 and kin7 mutants were more sensitive, to drought stress than the wild type. Genetic analyses show that the pub11 lrr1 kin7 triple mutant exhibited similar drought sensitivity as the lrr1 kin7 double mutant, placing PUB11 upstream of the two RLKs. Abscisic acid and drought treatment promoted the accumulation of PUB11, which likely accelerates LRR1 and KIN7 degradation. Together, our results reveal that PUB11 negatively regulates plant responses to drought stress by destabilizing the LRR1 and KIN7 RLKs.
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Affiliation(s)
- Xuexue Chen
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Tingting Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Amin Ur Rehman
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Junsheng Qi
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chunpeng Song
- Collaborative Innovation Center of Crop Stress Biology, Institute of Plant Stress Biology, Henan University, Kaifeng, 475001, China
| | - Baoshan Wang
- Key Lab of Plant Stress Research, College of Life Science, Shandong Normal University, Ji'nan, 250000, China
| | - Shuhua Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- School of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 100193, China
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Jiang J, Jiang B, He Z, Ficarro SB, Che J, Marto JA, Gao Y, Zhang T, Gray NS. Discovery of Covalent MKK4/7 Dual Inhibitor. Cell Chem Biol 2020; 27:1553-1560.e8. [PMID: 32916088 DOI: 10.1016/j.chembiol.2020.08.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/04/2020] [Accepted: 08/20/2020] [Indexed: 12/22/2022]
Abstract
MKK4/7 are kinases that phosphorylate JNKs and regulate the MAPK signaling pathway. Their overexpression has been associated with tumorigenesis and aggressiveness in cancers such as breast, prostate, non-small cell lung, and pediatric leukemia, making them a potential target for inhibitor development. Here, we report the discovery, development, and validation of a dual MKK4/7 inhibitor, BSJ-04-122, that covalently targets a conserved cysteine located before the DFG motif and displays excellent kinome selectivity. BSJ-04-122 exhibits potent cellular target engagement and induces robust target-specific downstream effects. The combination of the dual MKK4/7 inhibitor with a selective, covalent JNK inhibitor demonstrated an enhanced antiproliferative activity against triple-negative breast cancer cells. Taken together, the results show that BSJ-04-122 represents a pharmacological probe for MKK4/7 and credential covalent targeting as a way to explore the therapeutic potential of these kinases.
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Affiliation(s)
- Jie Jiang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Baishan Jiang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Zhixiang He
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Scott B Ficarro
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Blais Proteomics Center, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Jianwei Che
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Jarrod A Marto
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Blais Proteomics Center, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA; Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Yang Gao
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA
| | - Tinghu Zhang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
| | - Nathanael S Gray
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02215, USA.
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8
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Zhang X, Ruan C, Zhu H, Li K, Zhang W, Wang K, Hu L, Ye M. A Simplified Thermal Proteome Profiling Approach to Screen Protein Targets of a Ligand. Proteomics 2020; 20:e1900372. [PMID: 32578935 DOI: 10.1002/pmic.201900372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 06/10/2020] [Indexed: 01/10/2023]
Abstract
Thermal proteome profiling is a powerful energetic-based chemical proteomics method to reveal the ligand-protein interaction. However, the costly multiplexed isotopic labeling reagent, mainly Multiplexed isobaric tandem mass tag (TMT), and the long mass spectrometric time limits the wide application of this method. Here a simple and cost-effective strategy by using dimethyl labeling technique instead of TMT labeling is reported to quantify proteins and by using the peptides derived from the same protein to determine significantly changed proteins in one LC-MS run. This method is validated by identifying the known targets of methotrexate and geldanamycin. In addition, several potential off-targets involved in detoxification of reactive oxygen species pathway are also discovered for geldanamycin. This method is further applied to map the interactome of adenosine triphosphate (ATP) in the 293T cell lysate by using ATP analogue, adenylyl imidodiphosphate (AMP-PNP), as the ligand. As a result, a total of 123 AMP-PNP-sensitive proteins are found, of which 59 proteins are stabilized by AMP-PNP. Approximately 53% and 20% of these stabilized candidate protein targets are known as ATP and RNA binding proteins. Overall, above results demonstrated that this approach could be a valuable platform for the unbiased target proteins identification with reduced reagent cost and mass spectrometric time.
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Affiliation(s)
- Xiaolei Zhang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- Key Laboratory Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Chengfei Ruan
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - He Zhu
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Kejia Li
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Wenbo Zhang
- Key Laboratory Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Keyun Wang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Lianghai Hu
- Key Laboratory Molecular Enzymology and Engineering, the Ministry of Education, National Engineering Laboratory of AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, 130012, China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R & A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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Jelcic M, Wang K, Hui KL, Cai XC, Enyedi B, Luo M, Niethammer P. A Photo-clickable ATP-Mimetic Reveals Nucleotide Interactors in the Membrane Proteome. Cell Chem Biol 2020; 27:1073-1083.e12. [PMID: 32521230 DOI: 10.1016/j.chembiol.2020.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 04/13/2020] [Accepted: 05/20/2020] [Indexed: 12/17/2022]
Abstract
ATP is an important energy metabolite and allosteric signal in health and disease. ATP-interacting proteins, such as P2 receptors, control inflammation, cell death, migration, and wound healing. However, identification of allosteric ATP sites remains challenging, and our current inventory of ATP-controlled pathways is likely incomplete. Here, we develop and verify mipATP as a minimally invasive photoaffinity probe for ATP-interacting proteins. Its N6 functionalization allows target enrichment by UV crosslinking and conjugation to reporter tags by "click" chemistry. The additions are compact, allowing mipATP to completely retain the calcium signaling responses of native ATP in vitro and in vivo. mipATP specifically enriched for known nucleotide binders in A549 cell lysates and membrane fractions. In addition, it retrieved unannotated ATP interactors, such as the FAS receptor, CD44, and various SLC transporters. Thus, mipATP is a promising tool to identify allosteric ATP sites in the proteome.
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Affiliation(s)
- Mark Jelcic
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Louis V. Gerstner, Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ke Wang
- Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - King Lam Hui
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Xiao-Chuan Cai
- Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Balázs Enyedi
- Department of Physiology, Faculty of Medicine, Semmelweis University, Budapest, Hungary; MTA-SE Lendület Tissue Damage Research Group, Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary; HCEMM-SE Inflammatory Signaling Research Group, Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Minkui Luo
- Chemical Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Philipp Niethammer
- Cell Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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Tha S, Shakya S, Malla R, Aryal P. Prospects of Indole derivatives as methyl transfer inhibitors: antimicrobial resistance managers. BMC Pharmacol Toxicol 2020; 21:33. [PMID: 32366298 PMCID: PMC7197119 DOI: 10.1186/s40360-020-00402-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/06/2020] [Indexed: 12/02/2022] Open
Abstract
Background It is prudent that novel classes of antibiotics be urgently developed to manage the WHO prioritized multi-drug resistant (MDR) pathogens posing an unprecedented medical crisis. Simultaneously, multiple essential proteins have to be targeted to prevent easy resistance development. Methods An integration of structure-based virtual screening and ligand-based virtual screening was employed to explore the antimicrobial properties of indole derivatives from a compound database. Results Whole-genome sequences of the target pathogens were aligned exploiting DNA alignment potential of MAUVE to identify putative common lead target proteins. S-adenosyl methionine (SAM) biosynthesizing MetK was taken as the lead target and various literature searches revealed that SAM is a critical metabolite. Furthermore, SAM utilizing CobA involved in the B12 biosynthesis pathway, Dam in the regulation of replication and protein expression, and TrmD in methylation of tRNA were also taken as drug targets. The ligand library of 715 indole derivatives chosen based on kinase inhibition potential of indoles was created from which 102 were pursued based on ADME/T scores. Among these, 5 potential inhibitors of MetK in N. gonorrhoeae were further expanded to molecular docking studies in MetK proteins of all nine pathogens among which 3 derivatives exhibited inhibition potential. These 3 upon docking in other SAM utilizing enzymes, CobA, Dam, and TrmD gave 2 potential compounds with multiple targets. Further, docking with human MetK homolog also showed probable inhibitory effects however SAM requirements can be replenished from external sources since SAM transporters are present in humans. Conclusions We believe these molecules 3-[(4-hydroxyphenyl)methyl]-6-(1H-indol-3-ylmethyl)piperazine-2,5-dione (ZINC04899565) and 1-[(3S)-3-[5-(1H-indol-3-ylmethyl)-1,3,4-oxadiazol-2-yl]pyrrolidin-1-yl]ethanone (ZINC49171024) could be a starting point to help develop broad-spectrum antibiotics against infections caused by N. gonorrhoeae, A. baumannii, C. coli, K. pneumoniae, E. faecium, H. pylori, P. aeruginosa, S. aureus and S. typhi.
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Affiliation(s)
- Suprim Tha
- Central Department of Biotechnology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Sapana Shakya
- Central Department of Biotechnology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Rajani Malla
- Central Department of Biotechnology, Tribhuvan University, Kirtipur, Kathmandu, Nepal
| | - Pramod Aryal
- Central Department of Biotechnology, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
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11
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Matthus E, Sun J, Wang L, Bhat MG, Mohammad-Sidik AB, Wilkins KA, Leblanc-Fournier N, Legué V, Moulia B, Stacey G, Davies JM. DORN1/P2K1 and purino-calcium signalling in plants: making waves with extracellular ATP. ANNALS OF BOTANY 2020; 124:1227-1242. [PMID: 31904093 PMCID: PMC6943698 DOI: 10.1093/aob/mcz135] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Indexed: 05/03/2023]
Abstract
BACKGROUND AND AIMS Extracellular ATP governs a range of plant functions, including cell viability, adaptation and cross-kingdom interactions. Key functions of extracellular ATP in leaves and roots may involve an increase in cytosolic free calcium as a second messenger ('calcium signature'). The main aim here was to determine to what extent leaf and root calcium responses require the DORN1/P2K1 extracellular ATP receptor in Arabidopsis thaliana. The second aim was to test whether extracellular ATP can generate a calcium wave in the root. METHODS Leaf and root responses to extracellular ATP were reviewed for their possible links to calcium signalling and DORN1/P2K1. Leaves and roots of wild type and dorn1 plants were tested for cytosolic calcium increase in response to ATP, using aequorin. The spatial abundance of DORN1/P2K1 in the root was estimated using green fluorescent protein. Wild type roots expressing GCaMP3 were used to determine the spatial variation of cytosolic calcium increase in response to extracellular ATP. KEY RESULTS Leaf and root ATP-induced calcium signatures differed markedly. The leaf signature was only partially dependent on DORN1/P2K1, while the root signature was fully dependent. The distribution of DORN1/P2K1 in the root supports a key role in the generation of the apical calcium signature. Root apical and sub-apical calcium signatures may operate independently of each other but an apical calcium increase can drive a sub-apical increase, consistent with a calcium wave. CONCLUSION DORN1 could underpin several calcium-related responses but it may not be the only receptor for extracellular ATP in Arabidopsis. The root has the capacity for a calcium wave, triggered by extracellular ATP at the apex.
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Affiliation(s)
- Elsa Matthus
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Jian Sun
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
- Institute of Integrative Plant Biology, School of Life Science, Jiangsu Normal University, Xuzhou, China
| | - Limin Wang
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Madhura G Bhat
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | | | - Katie A Wilkins
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | | | - Valérie Legué
- Université Clermont Auvergne, INRA, PIAF, Clermont-Ferrand, France
| | - Bruno Moulia
- Université Clermont Auvergne, INRA, PIAF, Clermont-Ferrand, France
| | - Gary Stacey
- Divisions of Plant Science and Biochemistry, University of Missouri, Columbia, MO, USA
| | - Julia M Davies
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
- For correspondence. E-mail
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12
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Zhou J, Wang P, Claus LAN, Savatin DV, Xu G, Wu S, Meng X, Russinova E, He P, Shan L. Proteolytic Processing of SERK3/BAK1 Regulates Plant Immunity, Development, and Cell Death. PLANT PHYSIOLOGY 2019; 180:543-558. [PMID: 30782965 PMCID: PMC6501102 DOI: 10.1104/pp.18.01503] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/06/2019] [Indexed: 05/18/2023]
Abstract
Plants have evolved many receptor-like kinases (RLKs) to sense extrinsic and intrinsic cues. The signaling pathways mediated by multiple Leucine-rich repeat (LRR) RLK (LRR-RLK) receptors require ligand-induced receptor-coreceptor heterodimerization and transphosphorylation with BRI1-ASSOCIATED RECEPTOR KINASE1 (BAK1)/SOMATIC EMBRYOGENESIS RECEPTOR KINASES family LRR-RLKs. Here we reveal an additional layer of regulation of BAK1 via a Ca2+-dependent proteolytic cleavage process that is conserved in Arabidopsis (Arabidopsis thaliana), Nicotiana benthamiana, and Saccharomyces cerevisiae The proteolytic cleavage of BAK1 is intrinsically regulated in response to developmental cues and immune stimulation. The surface-exposed Asp (D287) residue of BAK1 is critical for its proteolytic cleavage and plays an essential role in BAK1-regulated plant immunity, growth hormone brassinosteroid-mediated responses, and cell death containment. BAK1D287A mutation impairs BAK1 phosphorylation on its substrate BOTRYTIS-INDUCED KINASE1 (BIK1), and its plasma membrane localization. Intriguingly, it aggravates BAK1 overexpression-triggered cell death independent of BIK1, suggesting that maintaining homeostasis of BAK1 through a proteolytic process is crucial to control plant growth and immunity. Our data reveal that in addition to layered transphosphorylation in the receptor complexes, the proteolytic cleavage is an important regulatory process for the proper functions of the shared coreceptor BAK1 in diverse cellular signaling pathways.
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Affiliation(s)
- Jinggeng Zhou
- Department of Biochemistry and Biophysics, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Ping Wang
- Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Lucas A N Claus
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, Vlaams Instituut voor Biotechnologie, 9052 Ghent, Belgium
| | - Daniel V Savatin
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, Vlaams Instituut voor Biotechnologie, 9052 Ghent, Belgium
| | - Guangyuan Xu
- Department of Biochemistry and Biophysics, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Shujing Wu
- Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
- College of Horticulture, Shandong Agricultural University, Tai'an, Shandong, 271018 China
| | - Xiangzong Meng
- Shanghai Key Laboratory of Plant Molecular Sciences, College of Life Sciences, Shanghai Normal University, Shanghai, 200234 China
| | - Eugenia Russinova
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
- Center for Plant Systems Biology, Vlaams Instituut voor Biotechnologie, 9052 Ghent, Belgium
| | - Ping He
- Department of Biochemistry and Biophysics, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
| | - Libo Shan
- Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, Texas 77843
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13
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Vaz C, Reales-Calderon JA, Pitarch A, Vellosillo P, Trevisan M, Hernáez ML, Monteoliva L, Gil C. Enrichment of ATP Binding Proteins Unveils Proteomic Alterations in Human Macrophage Cell Death, Inflammatory Response, and Protein Synthesis after Interaction with Candida albicans. J Proteome Res 2019; 18:2139-2159. [PMID: 30985132 DOI: 10.1021/acs.jproteome.9b00032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Macrophages are involved in the primary human response to Candida albicans. After pathogen recognition, signaling pathways are activated, leading to the production of cytokines, chemokines, and antimicrobial peptides. ATP binding proteins are crucial for this regulation. Here, a quantitative proteomic and phosphoproteomic approach was carried out for the study of human macrophage ATP-binding proteins after interaction with C. albicans. From a total of 547 nonredundant quantified proteins, 137 were ATP binding proteins and 59 were detected as differentially abundant. From the differentially abundant ATP-binding proteins, 6 were kinases (MAP2K2, SYK, STK3, MAP3K2, NDKA, and SRPK1), most of them involved in signaling pathways. Furthermore, 85 phosphopeptides were quantified. Macrophage proteomic alterations including an increase of protein synthesis with a consistent decrease in proteolysis were observed. Besides, macrophages showed changes in proteins of endosomal trafficking together with mitochondrial proteins, including some involved in the response to oxidative stress. Regarding cell death mechanisms, an increase of antiapoptotic over pro-apoptotic signals is suggested. Furthermore, a high pro-inflammatory response was detected, together with no upregulation of key mi-RNAs involved in the negative feedback of this response. These findings illustrate a strategy to deepen the knowledge of the complex interactions between the host and the clinically important pathogen C. albicans.
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Affiliation(s)
- Catarina Vaz
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Jose Antonio Reales-Calderon
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Aida Pitarch
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Perceval Vellosillo
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain
| | - Marco Trevisan
- Laboratorio de Proteómica Cardiovascular , Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) , 28029 Madrid , Spain
| | - María Luisa Hernáez
- Unidad de Proteómica , Universidad Complutense de Madrid , 28040 Madrid , Spain
| | - Lucía Monteoliva
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain
| | - Concha Gil
- Departamento de Microbiologı́a y Parasitología, Facultad de Farmacia , Universidad Complutense de Madrid , 28040 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria IRYCIS , 28034 Madrid , Spain.,Unidad de Proteómica , Universidad Complutense de Madrid , 28040 Madrid , Spain
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14
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Joachimiak Ł, Błażewska KM. Phosphorus-Based Probes as Molecular Tools for Proteome Studies: Recent Advances in Probe Development and Applications. J Med Chem 2018; 61:8536-8562. [DOI: 10.1021/acs.jmedchem.8b00249] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Łukasz Joachimiak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego Street 116, 90-924 Łódź, Poland
| | - Katarzyna M. Błażewska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego Street 116, 90-924 Łódź, Poland
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15
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Proteomic approaches beyond expression profiling and PTM analysis. Anal Bioanal Chem 2018; 410:4051-4060. [PMID: 29637251 DOI: 10.1007/s00216-018-1021-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/22/2018] [Accepted: 03/12/2018] [Indexed: 12/15/2022]
Abstract
Essentially, all cellular functions are executed by proteins. Different physiological and pathological conditions dynamically control various properties of proteins, including expression levels, post-translational modifications (PTMs), protein-protein interactions, enzymatic activity, etc. Thus far, the vast majority of proteomic efforts have been focused on quantitative profiling of protein abundance/expression and their PTMs. In this article, we review some recent exciting progress in the development of proteomic approaches to examine protein functions from perspectives other than expression levels and PTMs. Specifically, we discuss advancements in proximity-based labeling, analysis of protein termini and newly synthesized proteins, and activity-based protein profiling.
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16
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Ermert S, Marx A, Hacker SM. Phosphate-Modified Nucleotides for Monitoring Enzyme Activity. Top Curr Chem (Cham) 2017; 375:28. [PMID: 28251563 DOI: 10.1007/s41061-017-0117-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/30/2017] [Indexed: 02/07/2023]
Abstract
Nucleotides modified at the terminal phosphate position have been proven to be interesting entities to study the activity of a variety of different protein classes. In this chapter, we present various types of modifications that were attached as reporter molecules to the phosphate chain of nucleotides and briefly describe the chemical reactions that are frequently used to synthesize them. Furthermore, we discuss a variety of applications of these molecules. Kinase activity, for instance, was studied by transfer of a phosphate modified with a reporter group to the target proteins. This allows not only studying the activity of kinases, but also identifying their target proteins. Moreover, kinases can also be directly labeled with a reporter at a conserved lysine using acyl-phosphate probes. Another important application for phosphate-modified nucleotides is the study of RNA and DNA polymerases. In this context, single-molecule sequencing is made possible using detection in zero-mode waveguides, nanopores or by a Förster resonance energy transfer (FRET)-based mechanism between the polymerase and a fluorophore-labeled nucleotide. Additionally, fluorogenic nucleotides that utilize an intramolecular interaction between a fluorophore and the nucleobase or an intramolecular FRET effect have been successfully developed to study a variety of different enzymes. Finally, also some novel techniques applying electron paramagnetic resonance (EPR)-based detection of nucleotide cleavage or the detection of the cleavage of fluorophosphates are discussed. Taken together, nucleotides modified at the terminal phosphate position have been applied to study the activity of a large diversity of proteins and are valuable tools to enhance the knowledge of biological systems.
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Affiliation(s)
- Susanne Ermert
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
| | - Andreas Marx
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany
| | - Stephan M Hacker
- Department of Chemistry and Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstraße 10, 78464, Konstanz, Germany.
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17
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Minkoff BB, Makino SI, Haruta M, Beebe ET, Wrobel RL, Fox BG, Sussman MR. A cell-free method for expressing and reconstituting membrane proteins enables functional characterization of the plant receptor-like protein kinase FERONIA. J Biol Chem 2017; 292:5932-5942. [PMID: 28235802 DOI: 10.1074/jbc.m116.761981] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 02/09/2017] [Indexed: 01/17/2023] Open
Abstract
There are more than 600 receptor-like kinases (RLKs) in Arabidopsis, but due to challenges associated with the characterization of membrane proteins, only a few have known biological functions. The plant RLK FERONIA is a peptide receptor and has been implicated in plant growth regulation, but little is known about its molecular mechanism of action. To investigate the properties of this enzyme, we used a cell-free wheat germ-based expression system in which mRNA encoding FERONIA was co-expressed with mRNA encoding the membrane scaffold protein variant MSP1D1. With the addition of the lipid cardiolipin, assembly of these proteins into nanodiscs was initiated. FERONIA protein kinase activity in nanodiscs was higher than that of soluble protein and comparable with other heterologously expressed protein kinases. Truncation experiments revealed that the cytoplasmic juxtamembrane domain is necessary for maximal FERONIA activity, whereas the transmembrane domain is inhibitory. An ATP analogue that reacts with lysine residues inhibited catalytic activity and labeled four lysines; mutagenesis demonstrated that two of these, Lys-565 and Lys-663, coordinate ATP in the active site. Mass spectrometric phosphoproteomic measurements further identified phosphorylation sites that were examined using phosphomimetic mutagenesis. The results of these experiments are consistent with a model in which kinase-mediated phosphorylation within the C-terminal region is inhibitory and regulates catalytic activity. These data represent a step further toward understanding the molecular basis for the protein kinase catalytic activity of FERONIA and show promise for future characterization of eukaryotic membrane proteins.
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Affiliation(s)
- Benjamin B Minkoff
- From the Department of Biochemistry and.,the Biotechnology Center, University of Wisconsin, Madison, Wisconsin 53706
| | | | - Miyoshi Haruta
- From the Department of Biochemistry and.,the Biotechnology Center, University of Wisconsin, Madison, Wisconsin 53706
| | | | | | | | - Michael R Sussman
- From the Department of Biochemistry and .,the Biotechnology Center, University of Wisconsin, Madison, Wisconsin 53706
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18
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Gutiérrez-Beltrán E, Personat JM, de la Torre F, Del Pozo O. A Universal Stress Protein Involved in Oxidative Stress Is a Phosphorylation Target for Protein Kinase CIPK6. PLANT PHYSIOLOGY 2017; 173:836-852. [PMID: 27899535 PMCID: PMC5210712 DOI: 10.1104/pp.16.00949] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/26/2016] [Indexed: 05/27/2023]
Abstract
Calcineurin B-like interacting protein kinases (CIPKs) decode calcium signals upon interaction with the calcium sensors calcineurin B like proteins into phosphorylation events that result into adaptation to environmental stresses. Few phosphorylation targets of CIPKs are known and therefore the molecular mechanisms underlying their downstream output responses are not fully understood. Tomato (Solanum lycopersicum) Cipk6 regulates immune and susceptible Programmed cell death in immunity transforming Ca2+ signals into reactive oxygen species (ROS) signaling. To investigate SlCipk6-induced molecular mechanisms and identify putative substrates, a yeast two-hybrid approach was carried on and a protein was identified that contained a Universal stress protein (Usp) domain present in bacteria, protozoa and plants, which we named "SlRd2". SlRd2 was an ATP-binding protein that formed homodimers in planta. SlCipk6 and SlRd2 interacted using coimmunoprecipitation and bimolecular fluorescence complementation (BiFC) assays in Nicotiana benthamiana leaves and the complex localized in the cytosol. SlCipk6 phosphorylated SlRd2 in vitro, thus defining, to our knowledge, a novel target for CIPKs. Heterologous SlRd2 overexpression in yeast conferred resistance to highly toxic LiCl, whereas SlRd2 expression in Escherichia coli UspA mutant restored bacterial viability in response to H2O2 treatment. Finally, transient expression of SlCipk6 in transgenic N benthamiana SlRd2 overexpressors resulted in reduced ROS accumulation as compared to wild-type plants. Taken together, our results establish that SlRd2, a tomato UspA, is, to our knowledge, a novel interactor and phosphorylation target of a member of the CIPK family, SlCipk6, and functionally regulates SlCipk6-mediated ROS generation.
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Affiliation(s)
- Emilio Gutiérrez-Beltrán
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla/Consejo Superior de Investigaciones Científicas, 41092 Sevilla, Spain
| | - José María Personat
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla/Consejo Superior de Investigaciones Científicas, 41092 Sevilla, Spain
| | - Fernando de la Torre
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla/Consejo Superior de Investigaciones Científicas, 41092 Sevilla, Spain
| | - Olga Del Pozo
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla/Consejo Superior de Investigaciones Científicas, 41092 Sevilla, Spain
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19
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Xiao Y, Wang Y. Global discovery of protein kinases and other nucleotide-binding proteins by mass spectrometry. MASS SPECTROMETRY REVIEWS 2016; 35:601-19. [PMID: 25376990 PMCID: PMC5609854 DOI: 10.1002/mas.21447] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 08/08/2014] [Accepted: 08/09/2014] [Indexed: 05/11/2023]
Abstract
Nucleotide-binding proteins, such as protein kinases, ATPases and GTP-binding proteins, are among the most important families of proteins that are involved in a number of pivotal cellular processes. However, global study of the structure, function, and expression level of nucleotide-binding proteins as well as protein-nucleotide interactions can hardly be achieved with the use of conventional approaches owing to enormous diversity of the nucleotide-binding protein family. Recent advances in mass spectrometry (MS) instrumentation, coupled with a variety of nucleotide-binding protein enrichment methods, rendered MS-based proteomics a powerful tool for the comprehensive characterizations of the nucleotide-binding proteome, especially the kinome. Here, we review the recent developments in the use of mass spectrometry, together with general and widely used affinity enrichment approaches, for the proteome-wide capture, identification and quantification of nucleotide-binding proteins, including protein kinases, ATPases, GTPases, and other nucleotide-binding proteins. The working principles, advantages, and limitations of each enrichment platform in identifying nucleotide-binding proteins as well as profiling protein-nucleotide interactions are summarized. The perspectives in developing novel MS-based nucleotide-binding protein detection platform are also discussed. © 2014 Wiley Periodicals, Inc. Mass Spec Rev 35:601-619, 2016.
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Affiliation(s)
| | - Yinsheng Wang
- Correspondence to: Yinsheng Wang, Department of Chemistry, University of California, Riverside, CA 92521-0403.
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20
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Twelve ways to confirm targets of activity-based probes in plants. Bioorg Med Chem 2016; 24:3304-11. [DOI: 10.1016/j.bmc.2016.05.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/14/2016] [Accepted: 05/19/2016] [Indexed: 11/19/2022]
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21
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Capture of endogenously biotinylated proteins from Pseudomonas aeruginosa displays unexpected downregulation of LiuD upon iron nutrition. Bioorg Med Chem 2016; 24:3330-5. [PMID: 27160053 DOI: 10.1016/j.bmc.2016.04.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/21/2016] [Accepted: 04/24/2016] [Indexed: 11/21/2022]
Abstract
The uptake and storage but also removal of excess iron are of utmost importance to microorganisms since surplus levels of iron may lead to the formation of reactive oxygen species. Therefore, iron homeostasis is generally tightly regulated by the ferric uptake regulator (Fur), a global iron regulator acting as a transcriptional repressor. While detecting biotinylated proteins in labelling experiments, we discovered that the endogenously biotinylated protein LiuD differentially accumulated upon iron treatment. LiuD represents the α-subunit of the methylcrotonyl-CoA-carboxylase (MCCase), an enzyme from the leucine/isovalerate utilization pathway. Real-time PCR transcription analysis revealed that the observed lower levels of LiuD biotinylation could be traced back to lower LiuD protein levels via a transcriptional repression of liuABCDE expression that however does not seem to be mediated by Fur. In accordance with LiuD's role for the leucine/isovalerate utilization pathway and its protein level regulation by nutritional iron levels, we found that wild-type Pseudomonas aeruginosa did not grow in the presence of iron if the medium contained only leucine as a carbon source. Conversely, iron stimulated the growth when glucose was used as a carbon source. Our study thus demonstrates the complexities of iron-regulated bacterial growth in Pseudomonas aeruginosa.
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22
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Morimoto K, van der Hoorn RAL. The Increasing Impact of Activity-Based Protein Profiling in Plant Science. PLANT & CELL PHYSIOLOGY 2016; 57:446-61. [PMID: 26872839 DOI: 10.1093/pcp/pcw003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 12/28/2015] [Indexed: 05/08/2023]
Abstract
The active proteome dictates plant physiology. Yet, active proteins are difficult to predict based on transcript or protein levels, because protein activities are regulated post-translationally in their microenvironments. Over the past 10 years, activity-based protein profiling (ABPP) is increasingly used in plant science. ABPP monitors the activities of hundreds of plant proteins using tagged chemical probes that react with the active site of proteins in a mechanism-dependent manner. Since labeling is covalent and irreversible, labeled proteins can be detected and identified on protein gels and by mass spectrometry using tagged fluorophores and/or biotin. Here, we discuss general concepts, approaches and practical considerations of ABPP, before we summarize the discoveries made using 40 validated probes representing 14 chemotypes that can monitor the active state of >4,500 plant proteins. These discoveries and new opportunities indicate that this emerging functional proteomic technology is a powerful discovery tool that will have an increasing impact on plant science.
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Affiliation(s)
- Kyoko Morimoto
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, UK Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657 Japan
| | - Renier A L van der Hoorn
- The Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, UK
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23
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Adhikari J, Fitzgerald MC. SILAC-pulse proteolysis: A mass spectrometry-based method for discovery and cross-validation in proteome-wide studies of ligand binding. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2014; 25:2073-2083. [PMID: 25315461 DOI: 10.1007/s13361-014-0992-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 08/20/2014] [Accepted: 08/22/2014] [Indexed: 06/04/2023]
Abstract
Reported here is the use of stable isotope labeling with amino acids in cell culture (SILAC) and pulse proteolysis (PP) for detection and quantitation of protein-ligand binding interactions on the proteomic scale. The incorporation of SILAC into PP enables the PP technique to be used for the unbiased detection and quantitation of protein-ligand binding interactions in complex biological mixtures (e.g., cell lysates) without the need for prefractionation. The SILAC-PP technique is demonstrated in two proof-of-principle experiments using proteins in a yeast cell lysate and two test ligands including a well-characterized drug, cyclosporine A (CsA), and a non-hydrolyzable adenosine triphosphate (ATP) analogue, adenylyl imidodiphosphate (AMP-PNP). The well-known tight-binding interaction between CsA and cyclophilin A was successfully detected and quantified in replicate analyses, and a total of 33 proteins from a yeast cell lysate were found to have AMP-PNP-induced stability changes. In control experiments, the method's false positive rate of protein target discovery was found to be in the range of 2.1% to 3.6%. SILAC-PP and the previously reported stability of protein from rates of oxidation (SPROX) technique both report on the same thermodynamic properties of proteins and protein-ligand complexes. However, they employ different probes and mass spectrometry-based readouts. This creates the opportunity to cross-validate SPROX results with SILAC-PP results, and vice-versa. As part of this work, the SILAC-PP results obtained here were cross-validated with previously reported SPROX results on the same model systems to help differentiate true positives from false positives in the two experiments.
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Affiliation(s)
- Jagat Adhikari
- Department of Biochemistry, Duke University Medical Center, Durham, NC, 27708, USA
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24
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Adachi J, Kishida M, Watanabe S, Hashimoto Y, Fukamizu K, Tomonaga T. Proteome-wide discovery of unknown ATP-binding proteins and kinase inhibitor target proteins using an ATP probe. J Proteome Res 2014; 13:5461-70. [PMID: 25230287 DOI: 10.1021/pr500845u] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
ATP-binding proteins, including protein kinases, play essential roles in many biological and pathological processes and thus these proteins are attractive as drug targets. Acyl-ATP probes have been developed as efficient probes for kinase enrichment, and these probes have also been used to enrich other ATP-binding proteins. However, a robust method to identify ATP-binding proteins with systematic elimination of nonspecific binding proteins has yet to be established. Here, we describe an ATP competition assay that permitted establishment of a rigorous ATP-binding protein list with virtual elimination of nonspecific proteins. A total of 539 ATP-binding protein candidates were identified, including 178 novel candidates. In informatics analysis, ribosomal proteins were overrepresented in the list of novel candidates. We also found multiple ATP-competitive sites for several kinases, including epidermal growth factor receptor, serine/threonine-protein kinase PRP4 homologue, cyclin-dependent kinase 12, eukaryotic elongation factor 2 kinase, ribosomal protein S6 kinase alpha-1, and SRSF protein kinase 1. Using our cataloged ATP-binding protein list, a selectivity profiling method that covers the kinome and ATPome was established to identify off-target binding sites of ATP-competitive kinase inhibitors, staurosporine and crizotinib.
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Affiliation(s)
- Jun Adachi
- Laboratory of Proteome Research, National Institute of Biomedical Innovation , Ibaraki, Osaka 567-0085, Japan
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25
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Chandrasekar B, Colby T, Emran Khan Emon A, Jiang J, Hong TN, Villamor JG, Harzen A, Overkleeft HS, van der Hoorn RAL. Broad-range glycosidase activity profiling. Mol Cell Proteomics 2014; 13:2787-800. [PMID: 25056938 DOI: 10.1074/mcp.o114.041616] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Plants produce hundreds of glycosidases. Despite their importance in cell wall (re)modeling, protein and lipid modification, and metabolite conversion, very little is known of this large class of glycolytic enzymes, partly because of their post-translational regulation and their elusive substrates. Here, we applied activity-based glycosidase profiling using cell-permeable small molecular probes that react covalently with the active site nucleophile of retaining glycosidases in an activity-dependent manner. Using mass spectrometry we detected the active state of dozens of myrosinases, glucosidases, xylosidases, and galactosidases representing seven different retaining glycosidase families. The method is simple and applicable for different organs and different plant species, in living cells and in subproteomes. We display the active state of previously uncharacterized glycosidases, one of which was encoded by a previously declared pseudogene. Interestingly, glycosidase activity profiling also revealed the active state of a diverse range of putative xylosidases, galactosidases, glucanases, and heparanase in the cell wall of Nicotiana benthamiana. Our data illustrate that this powerful approach displays a new and important layer of functional proteomic information on the active state of glycosidases.
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Affiliation(s)
- Balakumaran Chandrasekar
- From the ‡Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, United Kingdom; §Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, 50829 Cologne, Germany
| | - Thomas Colby
- ‖Gorlaeus Laboratories, Leiden Institute of Chemistry and Netherlands Center for Proteomics, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Asif Emran Khan Emon
- §Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, 50829 Cologne, Germany
| | - Jianbing Jiang
- ‖Gorlaeus Laboratories, Leiden Institute of Chemistry and Netherlands Center for Proteomics, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Tram Ngoc Hong
- From the ‡Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, United Kingdom; §Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, 50829 Cologne, Germany
| | - Joji Grace Villamor
- §Plant Chemetics Laboratory, Max Planck Institute for Plant Breeding Research, Carl-von-Linne Weg 10, 50829 Cologne, Germany
| | - Anne Harzen
- ‖Gorlaeus Laboratories, Leiden Institute of Chemistry and Netherlands Center for Proteomics, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Herman S Overkleeft
- ‖Gorlaeus Laboratories, Leiden Institute of Chemistry and Netherlands Center for Proteomics, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Renier A L van der Hoorn
- From the ‡Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, United Kingdom; From the ‡Plant Chemetics Laboratory, Department of Plant Sciences, University of Oxford, South Parks Road, Oxford OX1 3RB, United Kingdom
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26
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Tran DT, Adhikari J, Fitzgerald MC. StableIsotope Labeling with Amino Acids in Cell Culture (SILAC)-based strategy for proteome-wide thermodynamic analysis of protein-ligand binding interactions. Mol Cell Proteomics 2014; 13:1800-13. [PMID: 24741112 DOI: 10.1074/mcp.m113.034702] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Described here is a quantitative mass spectrometry-based proteomics method for the large-scale thermodynamic analysis of protein-ligand binding interactions. The methodology utilizes a chemical modification strategy termed, Stability of Proteins from Rates of Oxidation (SPROX), in combination with a Stable Isotope Labeling with Amino Acids in Cell Culture (SILAC) approach to compare the equilibrium folding/unfolding properties of proteins in the absence and presence of target ligands. The method, which is general with respect to ligand, measures the ligand-induced changes in protein stability associated with protein-ligand binding. The methodology is demonstrated in a proof-of-principle study in which the well-characterized protein-drug interaction between cyclosporine A (CsA) and cyclophilin A was successfully analyzed in the context of a yeast cell lysate. A control experiment was also performed to assess the method's false positive rate of ligand discovery, which was found to be on the order of 0.4 - 3.5%. The new method was utilized to characterize the adenosine triphosphate (ATP)-interactome in Saccharomyces cerevisiae using the nonhydrolyzable ATP analog, adenylyl imidodiphosphate (AMP-PNP), and the proteins in a yeast cell lysate. The new methodology enabled the interrogation of 526 yeast proteins for interactions with ATP using 2035 peptide probes. Ultimately, 325 peptide hits from 139 different proteins were identified. Approximately 70% of the hit proteins identified in this work were not previously annotated as ATP binding proteins. However, nearly two-thirds of the newly discovered ATP interacting proteins have known interactions with other nucleotides and co-factors (e.g. NAD and GTP), DNA, and RNA based on GO-term analyses. The current work is the first proteome-wide profile of the yeast ATP-interactome, and it is the largest proteome-wide profile of any ATP-interactome generated, to date, using an energetics-based method. The data is available via ProteomeXchange with identifiers PXD000858, DOI 10.6019/PXD000858, and PXD000860.
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Affiliation(s)
- Duc T Tran
- From the ‡Department of Biochemistry, Duke University, Medical Center, Durham, North Carolina 27710
| | - Jagat Adhikari
- From the ‡Department of Biochemistry, Duke University, Medical Center, Durham, North Carolina 27710
| | - Michael C Fitzgerald
- From the ‡Department of Biochemistry, Duke University, Medical Center, Durham, North Carolina 27710; §Department of Chemistry, Duke University, Durham, North Carolina 27708
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27
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Xiao Y, Guo L, Wang Y. A targeted quantitative proteomics strategy for global kinome profiling of cancer cells and tissues. Mol Cell Proteomics 2014; 13:1065-75. [PMID: 24520089 PMCID: PMC3977184 DOI: 10.1074/mcp.m113.036905] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Revised: 12/08/2013] [Indexed: 12/28/2022] Open
Abstract
Kinases are among the most intensively pursued enzyme superfamilies as targets for anti-cancer drugs. Large data sets on inhibitor potency and selectivity for more than 400 human kinases became available recently, offering the opportunity to design rationally novel kinase-based anti-cancer therapies. However, the expression levels and activities of kinases are highly heterogeneous among different types of cancer and even among different stages of the same cancer. The lack of effective strategy for profiling the global kinome hampers the development of kinase-targeted cancer chemotherapy. Here, we introduced a novel global kinome profiling method, based on our recently developed isotope-coded ATP-affinity probe and a targeted proteomic method using multiple-reaction monitoring (MRM), for assessing simultaneously the expression of more than 300 kinases in human cells and tissues. This MRM-based assay displayed much better sensitivity, reproducibility, and accuracy than the discovery-based shotgun proteomic method. Approximately 250 kinases could be routinely detected in the lysate of a single cell line. Additionally, the incorporation of iRT into MRM kinome library rendered our MRM kinome assay easily transferrable across different instrument platforms and laboratories. We further employed this approach for profiling kinase expression in two melanoma cell lines, which revealed substantial kinome reprogramming during cancer progression and demonstrated an excellent correlation between the anti-proliferative effects of kinase inhibitors and the expression levels of their target kinases. Therefore, this facile and accurate kinome profiling assay, together with the kinome-inhibitor interaction map, could provide invaluable knowledge to predict the effectiveness of kinase inhibitor drugs and offer the opportunity for individualized cancer chemotherapy.
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Affiliation(s)
| | - Lei Guo
- §Environmental Toxicology Graduate Program, University of California, Riverside, CA 92521-0403
| | - Yinsheng Wang
- From the ‡Department of Chemistry and
- §Environmental Toxicology Graduate Program, University of California, Riverside, CA 92521-0403
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