1
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Collins E, Shou H, Mao C, Whelan J, Jost R. Dynamic interactions between SPX proteins, the ubiquitination machinery, and signalling molecules for stress adaptation at a whole-plant level. Biochem J 2024; 481:363-385. [PMID: 38421035 DOI: 10.1042/bcj20230163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
The plant macronutrient phosphorus is a scarce resource and plant-available phosphate is limiting in most soil types. Generally, a gene regulatory module called the phosphate starvation response (PSR) enables efficient phosphate acquisition by roots and translocation to other organs. Plants growing on moderate to nutrient-rich soils need to co-ordinate availability of different nutrients and repress the highly efficient PSR to adjust phosphate acquisition to the availability of other macro- and micronutrients, and in particular nitrogen. PSR repression is mediated by a small family of single SYG1/Pho81/XPR1 (SPX) domain proteins. The SPX domain binds higher order inositol pyrophosphates that signal cellular phosphorus status and modulate SPX protein interaction with PHOSPHATE STARVATION RESPONSE1 (PHR1), the central transcriptional regulator of PSR. Sequestration by SPX repressors restricts PHR1 access to PSR gene promoters. Here we focus on SPX4 that primarily acts in shoots and sequesters many transcription factors other than PHR1 in the cytosol to control processes beyond the classical PSR, such as nitrate, auxin, and jasmonic acid signalling. Unlike SPX1 and SPX2, SPX4 is subject to proteasomal degradation not only by singular E3 ligases, but also by SCF-CRL complexes. Emerging models for these different layers of control and their consequences for plant acclimation to the environment will be discussed.
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Affiliation(s)
- Emma Collins
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
| | - Huixia Shou
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
- Hainan Institute, Zhejiang University, Sanya 572025, China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining, Zhejiang 314400, China
| | - Chuanzao Mao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
| | - James Whelan
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
- The Provincial International Science and Technology Cooperation Base on Engineering Biology, International Campus of Zhejiang University, Haining, Zhejiang 314400, China
| | - Ricarda Jost
- Department of Animal, Plant and Soil Sciences, School of Agriculture, Biomedicine and Environment, La Trobe University, Bundoora, VIC 3086, Australia
- La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, VIC 3086, Australia
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2
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Schulze-Niemand E, Naumann M. The COP9 signalosome: A versatile regulatory hub of Cullin-RING ligases. Trends Biochem Sci 2023; 48:82-95. [PMID: 36041947 DOI: 10.1016/j.tibs.2022.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/14/2022] [Accepted: 08/01/2022] [Indexed: 12/27/2022]
Abstract
The COP9 signalosome (CSN) is a universal regulator of Cullin-RING ubiquitin ligases (CRLs) - a family of modular enzymes that control various cellular processes via timely degradation of key signaling proteins. The CSN, with its eight-subunit architecture, employs multisite binding of CRLs and inactivates CRLs by removing a small ubiquitin-like modifier named neural precursor cell-expressed, developmentally downregulated 8 (Nedd8). Besides the active site of the catalytic subunit CSN5, two allosteric sites are present in the CSN, one of which recognizes the substrate recognition module and the presence of CRL substrates, and the other of which can 'glue' the CSN-CRL complex by recruitment of inositol hexakisphosphate. In this review, we present recent findings on the versatile regulation of CSN-CRL complexes.
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Affiliation(s)
- Eric Schulze-Niemand
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany
| | - Michael Naumann
- Institute of Experimental Internal Medicine, Medical Faculty, Otto von Guericke University, 39120 Magdeburg, Germany.
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3
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Zou JP, Zhao QF, Yang T, Shang YF, Ahammed GJ, Zhou J. The E3 ubiquitin ligase RING1 interacts with COP9 Signalosome Subunit 4 to positively regulate resistance to root-knot nematodes in Solanum lycopersicum L. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 322:111344. [PMID: 35659944 DOI: 10.1016/j.plantsci.2022.111344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/07/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Globally, root-knot nematodes (RKNs) cause massive production losses in all major crops. E3 ubiquitin ligases are involved in plant growth, development and immune response. But their roles in plant defense against RKNs are largely unclear. Here, we show that tomato E3 ubiquitin ligase RING1 interacts with COP9 Signalosome Subunit 4 (CSN4) which is essential for jasmonic acid (JA)-dependent basal defense against RKNs. Tissue-specific expression analysis showed that RING1 expression was the highest in tomato roots and the expression was significantly increased with RKN (Meloidogyne incognita) infection. Compared with the wild-type plants, the number of egg masses in roots significantly increased in the ring1 mutants, while RING1 overexpression conferred resistance against RKNs. Furthermore, RKN infection increased the accumulation of CSN4 protein in the roots of wild-type plants, which was largely compromised in the ring1 mutants but was enhanced in the RING1 overexpressing plants. The RKN-induced transcripts of JA biosynthetic and signaling genes as well as the accumulation of JA and JA-isoleucine were compromised in ring1 mutants but were increased in RING1 overexpressing plants. These results suggest that RING1 positively regulates JA-dependent basal defense against RKNs by interacting with CSN4 proteins.
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Affiliation(s)
- Jin-Ping Zou
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Qiu-Feng Zhao
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Ting Yang
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Yi-Fen Shang
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China
| | - Golam Jalal Ahammed
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China
| | - Jie Zhou
- Department of Horticulture/Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Yuhangtang Road 866, Hangzhou 310058, China; Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Yuhangtang Road 866, Hangzhou 310058, China; Shandong (Linyi) Institute of Modern Agriculture, Zhejiang University, Linyi 276000, China.
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4
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Terrile MC, Tebez NM, Colman SL, Mateos JL, Morato-López E, Sánchez-López N, Izquierdo-Álvarez A, Marina A, Calderón Villalobos LIA, Estelle M, Martínez-Ruiz A, Fiol DF, Casalongué CA, Iglesias MJ. S-Nitrosation of E3 Ubiquitin Ligase Complex Components Regulates Hormonal Signalings in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 12:794582. [PMID: 35185952 PMCID: PMC8854210 DOI: 10.3389/fpls.2021.794582] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 12/13/2021] [Indexed: 06/01/2023]
Abstract
E3 ubiquitin ligases mediate the last step of the ubiquitination pathway in the ubiquitin-proteasome system (UPS). By targeting transcriptional regulators for their turnover, E3s play a crucial role in every aspect of plant biology. In plants, SKP1/CULLIN1/F-BOX PROTEIN (SCF)-type E3 ubiquitin ligases are essential for the perception and signaling of several key hormones including auxins and jasmonates (JAs). F-box proteins, TRANSPORT INHIBITOR RESPONSE 1 (TIR1) and CORONATINE INSENSITIVE 1 (COI1), bind directly transcriptional repressors AUXIN/INDOLE-3-ACETIC ACID (AUX/IAA) and JASMONATE ZIM-DOMAIN (JAZ) in auxin- and JAs-depending manner, respectively, which permits the perception of the hormones and transcriptional activation of signaling pathways. Redox modification of proteins mainly by S-nitrosation of cysteines (Cys) residues via nitric oxide (NO) has emerged as a valued regulatory mechanism in physiological processes requiring its rapid and versatile integration. Previously, we demonstrated that TIR1 and Arabidopsis thaliana SKP1 (ASK1) are targets of S-nitrosation, and these NO-dependent posttranslational modifications enhance protein-protein interactions and positively regulate SCFTIR1 complex assembly and expression of auxin response genes. In this work, we confirmed S-nitrosation of Cys140 in TIR1, which was associated in planta to auxin-dependent developmental and stress-associated responses. In addition, we provide evidence on the modulation of the SCFCOI1 complex by different S-nitrosation events. We demonstrated that S-nitrosation of ASK1 Cys118 enhanced ASK1-COI1 protein-protein interaction. Overexpression of non-nitrosable ask1 mutant protein impaired the activation of JA-responsive genes mediated by SCFCOI1 illustrating the functional relevance of this redox-mediated regulation in planta. In silico analysis positions COI1 as a promising S-nitrosation target, and demonstrated that plants treated with methyl JA (MeJA) or S-nitrosocysteine (NO-Cys, S-nitrosation agent) develop shared responses at a genome-wide level. The regulation of SCF components involved in hormonal perception by S-nitrosation may represent a key strategy to determine the precise time and site-dependent activation of each hormonal signaling pathway and highlights NO as a pivotal molecular player in these scenarios.
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Affiliation(s)
- Maria Cecilia Terrile
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Nuria Malena Tebez
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Silvana Lorena Colman
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Julieta Lisa Mateos
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), CONICET-UBA, Buenos Aires, Argentina
| | - Esperanza Morato-López
- Servicio de Proteómica, Centro de Biología Molecular “Severo Ochoa”, CSIC-UAM, Madrid, Spain
| | - Nuria Sánchez-López
- Servicio de Proteómica, Centro de Biología Molecular “Severo Ochoa”, CSIC-UAM, Madrid, Spain
| | - Alicia Izquierdo-Álvarez
- Unidad de Investigación, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain
| | - Anabel Marina
- Servicio de Proteómica, Centro de Biología Molecular “Severo Ochoa”, CSIC-UAM, Madrid, Spain
| | - Luz Irina A. Calderón Villalobos
- Molecular Signal Processing Department, Leibniz Institute of Plant Biochemistry (IPB), Halle (Saale), Germany
- KWS Gateway Research Center, LLC., BRDG Park at The Danforth Plant Science Center, St. Louis, MO, United States
| | - Mark Estelle
- Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, United States
| | - Antonio Martínez-Ruiz
- Unidad de Investigación, Hospital Universitario Santa Cristina, Instituto de Investigación Sanitaria Princesa (IIS-IP), Madrid, Spain
| | - Diego Fernando Fiol
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - Claudia Anahí Casalongué
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
| | - María José Iglesias
- Instituto de Investigaciones Biológicas, UE-CONICET-UNMDP, Facultad de Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE), CONICET-UBA, Buenos Aires, Argentina
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5
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Zhang X, Shi S, Su Y, Yang X, He S, Yang X, Wu J, Zhang J, Rao F. Suramin and NF449 are IP5K inhibitors that disrupt inositol hexakisphosphate-mediated regulation of cullin-RING ligase and sensitize cancer cells to MLN4924/pevonedistat. J Biol Chem 2020; 295:10281-10292. [PMID: 32493769 DOI: 10.1074/jbc.ra120.014375] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 05/27/2020] [Indexed: 12/27/2022] Open
Abstract
Inositol hexakisphosphate (IP6) is an abundant metabolite synthesized from inositol 1,3,4,5,6-pentakisphosphate (IP5) by the single IP5 2-kinase (IP5K). Genetic and biochemical studies have shown that IP6 usually functions as a structural cofactor in protein(s) mediating mRNA export, DNA repair, necroptosis, 3D genome organization, HIV infection, and cullin-RING ligase (CRL) deneddylation. However, it remains unknown whether pharmacological perturbation of cellular IP6 levels affects any of these processes. Here, we performed screening for small molecules that regulate human IP5K activity, revealing that the antiparasitic drug and polysulfonic compound suramin efficiently inhibits IP5K in vitro and in vivo The results from docking experiments and biochemical validations suggested that the suramin targets IP5K in a distinct bidentate manner by concurrently binding to the ATP- and IP5-binding pockets, thereby inhibiting both IP5 phosphorylation and ATP hydrolysis. NF449, a suramin analog with additional sulfonate moieties, more potently inhibited IP5K. Both suramin and NF449 disrupted IP6-dependent sequestration of CRL by the deneddylase COP9 signalosome, thereby affecting CRL activity cycle and component dynamics in an IP5K-dependent manner. Finally, nontoxic doses of suramin, NF449, or NF110 exacerbate the loss of cell viability elicited by the neddylation inhibitor and clinical trial drug MLN4924/pevonedistat, suggesting synergistic ef-fects. Suramin and its analogs provide structural templates for designing potent and specific IP5K inhibitors, which could be used in combination therapy along with MLN4924/pevonedistat. IP5K is a potential mechanistic target of suramin, accounting for suramin's therapeutic effects.
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Affiliation(s)
- Xiaozhe Zhang
- College of Biological Sciences, China Agricultural University, Beijing, China.,Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Shaodong Shi
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Yang Su
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Xiaoli Yang
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Sining He
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Xiuyan Yang
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Jing Wu
- Key Laboratory of Cell Differentiation and Apoptosis, Ministry of Education, Department of Pathophysiology, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Jian Zhang
- Key Laboratory of Cell Differentiation and Apoptosis, Ministry of Education, Department of Pathophysiology, Ruijin Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Feng Rao
- Department of Biology, Southern University of Science and Technology, Shenzhen, Guangdong, China
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6
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Mukherjee S, Haubner J, Chakraborty A. Targeting the Inositol Pyrophosphate Biosynthetic Enzymes in Metabolic Diseases. Molecules 2020; 25:molecules25061403. [PMID: 32204420 PMCID: PMC7144392 DOI: 10.3390/molecules25061403] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/09/2020] [Accepted: 03/11/2020] [Indexed: 12/12/2022] Open
Abstract
In mammals, a family of three inositol hexakisphosphate kinases (IP6Ks) synthesizes the inositol pyrophosphate 5-IP7 from IP6. Genetic deletion of Ip6k1 protects mice from high fat diet induced obesity, insulin resistance and fatty liver. IP6K1 generated 5-IP7 promotes insulin secretion from pancreatic β-cells, whereas it reduces insulin signaling in metabolic tissues by inhibiting the protein kinase Akt. Thus, IP6K1 promotes high fat diet induced hyperinsulinemia and insulin resistance in mice while its deletion has the opposite effects. IP6K1 also promotes fat accumulation in the adipose tissue by inhibiting the protein kinase AMPK mediated energy expenditure. Genetic deletion of Ip6k3 protects mice from age induced fat accumulation and insulin resistance. Accordingly, the pan IP6K inhibitor TNP [N2-(m-trifluorobenzyl), N6-(p-nitrobenzyl)purine] ameliorates obesity, insulin resistance and fatty liver in diet induced obese mice by improving Akt and AMPK mediated insulin sensitivity and energy expenditure. TNP also protects mice from bone loss, myocardial infarction and ischemia reperfusion injury. Thus, the IP6K pathway is a potential target in obesity and other metabolic diseases. Here, we summarize the studies that established IP6Ks as a potential target in metabolic diseases. Further studies will reveal whether inhibition of this pathway has similar pleiotropic benefits on metabolic health of humans.
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7
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Lin H, Zhang X, Liu L, Fu Q, Zang C, Ding Y, Su Y, Xu Z, He S, Yang X, Wei X, Mao H, Cui Y, Wei Y, Zhou C, Du L, Huang N, Zheng N, Wang T, Rao F. Basis for metabolite-dependent Cullin-RING ligase deneddylation by the COP9 signalosome. Proc Natl Acad Sci U S A 2020; 117:4117-4124. [PMID: 32047038 PMCID: PMC7049131 DOI: 10.1073/pnas.1911998117] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The Cullin-RING ligases (CRLs) are the largest family of ubiquitin E3s activated by neddylation and regulated by the deneddylase COP9 signalosome (CSN). The inositol polyphosphate metabolites promote the formation of CRL-CSN complexes, but with unclear mechanism of action. Here, we provide structural and genetic evidence supporting inositol hexakisphosphate (IP6) as a general CSN cofactor recruiting CRLs. We determined the crystal structure of IP6 in complex with CSN subunit 2 (CSN2), based on which we identified the IP6-corresponding electron density in the cryoelectron microscopy map of a CRL4A-CSN complex. IP6 binds to a cognate pocket formed by conserved lysine residues from CSN2 and Rbx1/Roc1, thereby strengthening CRL-CSN interactions to dislodge the E2 CDC34/UBE2R from CRL and to promote CRL deneddylation. IP6 binding-deficient Csn2K70E/K70E knockin mice are embryonic lethal. The same mutation disabled Schizosaccharomyces pombe Csn2 from rescuing UV-hypersensitivity of csn2-null yeast. These data suggest that CRL transition from the E2-bound active state to the CSN-bound sequestered state is critically assisted by an interfacial IP6 small molecule, whose metabolism may be coupled to CRL-CSN complex dynamics.
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Affiliation(s)
- Hong Lin
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Xiaozhe Zhang
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Li Liu
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Qiuyu Fu
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Chuanlong Zang
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemical Biology, College of Chemistry, Nankai University, 300071 Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, 300071 Tianjin, China
| | - Yan Ding
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Yang Su
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Zhixue Xu
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Sining He
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Xiaoli Yang
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Xiayun Wei
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
| | - Haibin Mao
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA 98195
- Howard Hughes Medical Institute, University of Washington School of Medicine, Seattle, WA 98195
| | - Yasong Cui
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Yi Wei
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Chuanzheng Zhou
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemical Biology, College of Chemistry, Nankai University, 300071 Tianjin, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, 300071 Tianjin, China
| | - Lilin Du
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Niu Huang
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Ning Zheng
- Department of Pharmacology, University of Washington School of Medicine, Seattle, WA 98195
- Howard Hughes Medical Institute, University of Washington School of Medicine, Seattle, WA 98195
| | - Tao Wang
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China;
| | - Feng Rao
- Department of Biology, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China;
- Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Institute of Neuroscience, Southern University of Science and Technology, Shenzhen, 518055 Guangdong, China
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8
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Qin N, Xu D, Li J, Deng XW. COP9 signalosome: Discovery, conservation, activity, and function. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:90-103. [PMID: 31894894 DOI: 10.1111/jipb.12903] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 12/26/2019] [Indexed: 05/22/2023]
Abstract
The COP9 signalosome (CSN) is a conserved protein complex, typically composed of eight subunits (designated as CSN1 to CSN8) in higher eukaryotes such as plants and animals, but of fewer subunits in some lower eukaryotes such as yeasts. The CSN complex is originally identified in plants from a genetic screen for mutants that mimic light-induced photomorphogenic development when grown in the dark. The CSN complex regulates the activity of cullin-RING ligase (CRL) families of E3 ubiquitin ligase complexes, and play critical roles in regulating gene expression, cell proliferation, and cell cycle. This review aims to summarize the discovery, composition, structure, and function of CSN in the regulation of plant development in response to external (light and temperature) and internal cues (phytohormones).
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Affiliation(s)
- Nanxun Qin
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences and School of Life Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Dongqing Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jigang Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xing Wang Deng
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences and School of Life Sciences, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
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