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Fu Q, Liu Q, Zhang R, Chen J, Guo H, Ming Z, Yu F, Zheng H. Large-scale analysis of the N-terminal regulatory elements of the kinase domain in plant Receptor-like kinase family. BMC PLANT BIOLOGY 2024; 24:174. [PMID: 38443815 PMCID: PMC10916322 DOI: 10.1186/s12870-024-04846-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND The N-terminal regulatory element (NRE) of Receptor-like kinases (RLKs), consisting of the juxtamembrane segment in receptor kinases (RKs) and the N-terminal extension segment in RLCKs, is a crucial component that regulates the activities of these proteins. However, the features and functions of the NRE have remained largely unexplored. Herein, we comprehensively analyze 510,233 NRE sequences in RLKs from 528 plant species, using information theory and data mining techniques to unravel their common characteristics and diversity. We also use recombinant RKs to investigate the function of the NRE in vitro. RESULTS Our findings indicate that the majority of NRE segments are around 40-80 amino acids in length and feature a serine-rich region and a 14-amino-acid consensus sequence, 'FSYEELEKAT[D/N]NF[S/D]', which contains a characteristic α-helix and ST motif that connects to the core kinase domain. This conserved signature sequence is capable of suppressing FERONIA's kinase activity. A motif discovery algorithm identifies 29 motifs with highly conserved phosphorylation sites in RK and RLCK classes, especially the motif 'VGPWKpTGLpSGQLQKAFVTGVP' in LRR-VI-2 class. Phosphorylation of an NRE motif in an LRR-VI-2 member, MDIS1, modulates the auto-phosphorylation of its co-receptor, MIK1, indicating the potential role of NRE as a 'kinase switch' in RLK activation. Furthermore, the characterization of phosphorylatable NRE motifs improves the accuracy of predicting phosphorylatable sites. CONCLUSIONS Our study provides a comprehensive dataset to investigate NRE segments from individual RLKs and enhances our understanding of the underlying mechanisms of RLK signal transduction and kinase activation processes in plant adaptation.
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Affiliation(s)
- Qiong Fu
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China
| | - Qian Liu
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China
| | - Rensen Zhang
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China
| | - Jia Chen
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China
| | - Hengchang Guo
- Shenzhen H-Great Optoelectronic Co. Ltd, Shenzhen, 518110, China
| | - Zhenhua Ming
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Feng Yu
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China.
| | - Heping Zheng
- Bioinformatics Center, Hunan University College of Biology, Hunan, 410082, China.
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Cross-Microbial Protection via Priming a Conserved Immune Co-Receptor through Juxtamembrane Phosphorylation in Plants. Cell Host Microbe 2019; 26:810-822.e7. [DOI: 10.1016/j.chom.2019.10.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/20/2019] [Accepted: 10/14/2019] [Indexed: 12/12/2022]
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Oehlenschlæger CB, Gersby LBA, Ahsan N, Pedersen JT, Kristensen A, Solakova TV, Thelen JJ, Fuglsang AT. Activation of the LRR Receptor-Like Kinase PSY1R Requires Transphosphorylation of Residues in the Activation Loop. FRONTIERS IN PLANT SCIENCE 2017; 8:2005. [PMID: 29230231 PMCID: PMC5712095 DOI: 10.3389/fpls.2017.02005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/10/2017] [Indexed: 05/07/2023]
Abstract
PSY1R is a leucine-rich repeat (LRR) receptor-like kinase (RLK) previously shown to act as receptor for the plant peptide hormone PSY1 (peptide containing sulfated tyrosine 1) and to regulate cell expansion. PSY1R phosphorylates and thereby regulates the activity of plasma membrane-localized H+-ATPases. While this mechanism has been studied in detail, little is known about how PSY1R itself is activated. Here we studied the activation mechanism of PSY1R. We show that full-length PSY1R interacts with members of the SERK co-receptor family in planta. We identified seven in vitro autophosphorylation sites on serine and threonine residues within the kinase domain of PSY1R using mass spectrometry. We furthermore show that PSY1R autophosphorylation occurs in trans and that the initial transphosphorylation takes place within the activation loop at residues Ser951, Thr959, and Thr963. While Thr959 and Thr963 are conserved among other related plant LRR RLKs, Ser951 is unique to PSY1R. Based on homology modeling we propose that phosphorylation of Ser951 stabilize the inactive conformation of PSY1R.
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Affiliation(s)
- Christian B. Oehlenschlæger
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Lotte B. A. Gersby
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Nagib Ahsan
- Christopher S. Bond Life Sciences Center, Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Jesper T. Pedersen
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Astrid Kristensen
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Tsvetelina V. Solakova
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Jay J. Thelen
- Christopher S. Bond Life Sciences Center, Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Anja T. Fuglsang
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
- *Correspondence: Anja T. Fuglsang,
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Czyzewicz N, Nikonorova N, Meyer MR, Sandal P, Shah S, Vu LD, Gevaert K, Rao AG, De Smet I. The growing story of (ARABIDOPSIS) CRINKLY 4. JOURNAL OF EXPERIMENTAL BOTANY 2016; 67:4835-4847. [PMID: 27208540 DOI: 10.1093/jxb/erw192] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Receptor kinases play important roles in plant growth and development, but only few of them have been functionally characterized in depth. Over the past decade CRINKLY 4 (CR4)-related research has peaked as a result of a newly discovered role of ARABIDOPSIS CR4 (ACR4) in the root. Here, we comprehensively review the available (A)CR4 literature and describe its role in embryo, seed, shoot, and root development, but we also flag an unexpected role in plant defence. In addition, we discuss ACR4 domains and protein structure, describe known ACR4-interacting proteins and substrates, and elaborate on the transcriptional regulation of ACR4 Finally, we address the missing knowledge in our understanding of ACR4 signalling.
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Affiliation(s)
- Nathan Czyzewicz
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, UK
| | - Natalia Nikonorova
- Department of Plant Systems Biology, VIB, B-9052 Ghent University, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium
| | - Matthew R Meyer
- Roy J. Carver Department of Biochemistry Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Priyanka Sandal
- Roy J. Carver Department of Biochemistry Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Shweta Shah
- Roy J. Carver Department of Biochemistry Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Lam Dai Vu
- Department of Plant Systems Biology, VIB, B-9052 Ghent University, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium Medical Biotechnology Center, VIB, 9000 Ghent, Belgium Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - Kris Gevaert
- Medical Biotechnology Center, VIB, 9000 Ghent, Belgium Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - A Gururaj Rao
- Roy J. Carver Department of Biochemistry Biophysics and Molecular Biology, Iowa State University, Ames, IA, 50011, USA
| | - Ive De Smet
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Loughborough, LE12 5RD, UK Department of Plant Systems Biology, VIB, B-9052 Ghent University, Belgium Department of Plant Biotechnology and Bioinformatics, Ghent University, B-9052 Ghent, Belgium Centre for Plant Integrative Biology, University of Nottingham, Loughborough, LE12 5RD, UK
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PP2A-3 interacts with ACR4 and regulates formative cell division in the Arabidopsis root. Proc Natl Acad Sci U S A 2016; 113:1447-52. [PMID: 26792519 DOI: 10.1073/pnas.1525122113] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In plants, the generation of new cell types and tissues depends on coordinated and oriented formative cell divisions. The plasma membrane-localized receptor kinase ARABIDOPSIS CRINKLY 4 (ACR4) is part of a mechanism controlling formative cell divisions in the Arabidopsis root. Despite its important role in plant development, very little is known about the molecular mechanism with which ACR4 is affiliated and its network of interactions. Here, we used various complementary proteomic approaches to identify ACR4-interacting protein candidates that are likely regulators of formative cell divisions and that could pave the way to unraveling the molecular basis behind ACR4-mediated signaling. We identified PROTEIN PHOSPHATASE 2A-3 (PP2A-3), a catalytic subunit of PP2A holoenzymes, as a previously unidentified regulator of formative cell divisions and as one of the first described substrates of ACR4. Our in vitro data argue for the existence of a tight posttranslational regulation in the associated biochemical network through reciprocal regulation between ACR4 and PP2A-3 at the phosphorylation level.
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Nikonorova N, Vu LD, Czyzewicz N, Gevaert K, De Smet I. A phylogenetic approach to study the origin and evolution of the CRINKLY4 family. FRONTIERS IN PLANT SCIENCE 2015; 6:880. [PMID: 26557128 PMCID: PMC4617170 DOI: 10.3389/fpls.2015.00880] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 10/02/2015] [Indexed: 05/03/2023]
Abstract
Cell-cell communication plays a crucial role in plant growth and development and relies to a large extent on peptide ligand-receptor kinase signaling mechanisms. The CRINKLY4 (CR4) family of receptor-like kinases is involved in a wide range of developmental processes in plants, including mediating columella stem cell identity and differentiation in the Arabidopsis thaliana root tip. Members of the CR4 family contain a signal peptide, an extracellular part, a single-pass transmembrane helix and an intracellular cytoplasmic protein kinase domain. The main distinguishing features of the family are the presence of seven "crinkly" repeats and a TUMOR NECROSIS FACTOR RECEPTOR (TNFR)-like domain in the extracellular part. Here, we investigated the evolutionary origin of the CR4 family and explored to what extent members of this family are conserved throughout the green lineage. We identified members of the CR4 family in various dicots and monocots, and also in the lycophyte Selaginella moellendorffii and the bryophyte Physcomitrella patens. In addition, we attempted to gain insight in the evolutionary origin of different CR4-specific domains, and we could detect "crinkly" repeat containing proteins already in single celled algae. Finally, we related the presence of likely functional CR4 orthologs to its best described signaling module comprising CLAVATA3/EMBRYO SURROUNDING REGION-RELATED 40 (CLE40), WUSCHEL RELATED HOMEOBOX 5 (WOX5), CLAVATA 1 (CLV1), and ARABIDOPSIS CR4 (ACR4), and established that this module likely is already present in bryophytes and lycophytes.
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Affiliation(s)
- Natalia Nikonorova
- Department of Plant Systems Biology, Flanders Institute for Biotechnology (VIB)Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
| | - Lam D. Vu
- Department of Plant Systems Biology, Flanders Institute for Biotechnology (VIB)Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Department of Medical Protein Research, Flanders Institute for Biotechnology (VIB), Ghent UniversityGhent, Belgium
- Department of Biochemistry, Ghent UniversityGhent, Belgium
| | - Nathan Czyzewicz
- Division of Plant and Crop Sciences, School of Biosciences, University of NottinghamLoughborough, UK
| | - Kris Gevaert
- Department of Medical Protein Research, Flanders Institute for Biotechnology (VIB), Ghent UniversityGhent, Belgium
- Department of Biochemistry, Ghent UniversityGhent, Belgium
| | - Ive De Smet
- Department of Plant Systems Biology, Flanders Institute for Biotechnology (VIB)Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityGhent, Belgium
- Division of Plant and Crop Sciences, School of Biosciences, University of NottinghamLoughborough, UK
- Center for Plant Integrative Biology, University of NottinghamLoughborough, UK
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Meyer MR, Shah S, Zhang J, Rohrs H, Rao AG. Evidence for intermolecular interactions between the intracellular domains of the arabidopsis receptor-like kinase ACR4, its homologs and the Wox5 transcription factor. PLoS One 2015; 10:e0118861. [PMID: 25756623 PMCID: PMC4355418 DOI: 10.1371/journal.pone.0118861] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/07/2015] [Indexed: 11/23/2022] Open
Abstract
Arabidopsis CRINKLY4 (ACR4) is a receptor-like kinase (RLK) involved in the global development of the plant. The Arabidopsis genome encodes four homologs of ACR4 that contain sequence similarity and analogous architectural elements to ACR4, termed Arabidopsis CRINKLY4 Related (AtCRRs) proteins. Additionally, a signaling module has been previously proposed including a postulated peptide ligand, CLE40, the ACR4 RLK, and the WOX5 transcription factor that engage in a possible feedback mechanism controlling stem cell differentiation. However, little biochemical evidence is available to ascertain the molecular aspects of receptor heterodimerization and the role of phosphorylation in these interactions. Therefore, we have undertaken an investigation of the in vitro interactions between the intracellular domains (ICD) of ACR4, the CRRs and WOX5. We demonstrate that interaction can occur between ACR4 and all four CRRs in the unphosphorylated state. However, phosphorylation dependency is observed for the interaction between ACR4 and CRR3. Furthermore, sequence analysis of the ACR4 gene family has revealed a conserved ‘KDSAF’ motif that may be involved in protein-protein interactions among the receptor family. We demonstrate that peptides harboring this conserved motif in CRR3 and CRK1are able to bind to the ACR4 kinase domain. Our investigations also indicate that the ACR4 ICD can interact with and phosphorylate the transcription factor WOX5.
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Affiliation(s)
- Matthew R. Meyer
- Department of Medicine, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO 63130, United States of America
| | - Shweta Shah
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States of America
| | - J. Zhang
- NIH NCRR Center for Biomedical and Bio-Organic Mass Spectrometry, Dept. of Chemistry, Washington University, St. Louis, MO 63130, United States of America
| | - Henry Rohrs
- NIH NCRR Center for Biomedical and Bio-Organic Mass Spectrometry, Dept. of Chemistry, Washington University, St. Louis, MO 63130, United States of America
| | - A. Gururaj Rao
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011, United States of America
- * E-mail:
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