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Open data
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Basic information
| Entry | Database: PDB / ID: 8yaa | ||||||
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| Title | Cryo-EM structure of MIK2-SCOOP12-BAK1 | ||||||
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Keywords | TRANSFERASE/PLANT PROTEIN / LRR-RLK / SERK / MIK2 / SCOOP / BAK1 / PLANT PROTEIN / TRANSFERASE / PLANT PROTEIN complex / TRANSFERASE-PLANT PROTEIN complex | ||||||
| Function / homology | Function and homology informationplant-type cell wall organization / indole glucosinolate biosynthetic process / regulation of unidimensional cell growth / cell-cell signaling involved in cell fate commitment / regulation of root development / positive regulation of defense response / pollen tube / regulation of defense response to bacterium / pollen tube guidance / response to herbivore ...plant-type cell wall organization / indole glucosinolate biosynthetic process / regulation of unidimensional cell growth / cell-cell signaling involved in cell fate commitment / regulation of root development / positive regulation of defense response / pollen tube / regulation of defense response to bacterium / pollen tube guidance / response to herbivore / regulation of defense response to fungus / regulation of root meristem growth / defense response to insect / response to insect / peptide receptor activity / jasmonic acid biosynthetic process / cellular response to peptide / apoplast / plasmodesma / receptor serine/threonine kinase binding / regulation of reactive oxygen species metabolic process / LRR domain binding / negative regulation of reactive oxygen species metabolic process / transmembrane receptor protein tyrosine kinase activity / peptide binding / response to bacterium / defense response / response to molecule of bacterial origin / receptor protein-tyrosine kinase / response to wounding / non-specific serine/threonine protein kinase / endosome membrane / signaling receptor binding / protein serine kinase activity / protein serine/threonine kinase activity / ATP binding / identical protein binding / plasma membrane Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.34 Å | ||||||
Authors | Jia, F.S. / Xiao, Y. / Chai, J.J. | ||||||
| Funding support | China, 1items
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Citation | Journal: Nat Plants / Year: 2024Title: N-glycosylation facilitates the activation of a plant cell-surface receptor. Authors: Fangshuai Jia / Yu Xiao / Yaojie Feng / Jinghui Yan / Mingzhu Fan / Yue Sun / Shijia Huang / Weiguo Li / Tian Zhao / Zhifu Han / Shuguo Hou / Jijie Chai / ![]() Abstract: Plant receptor kinases (RKs) are critical for transmembrane signalling involved in various biological processes including plant immunity. MALE DISCOVERER1-INTERACTING RECEPTOR-LIKE KINASE 2 (MIK2) is ...Plant receptor kinases (RKs) are critical for transmembrane signalling involved in various biological processes including plant immunity. MALE DISCOVERER1-INTERACTING RECEPTOR-LIKE KINASE 2 (MIK2) is a unique RK that recognizes a family of immunomodulatory peptides called SERINE-RICH ENDOGENOUS PEPTIDEs (SCOOPs) and activates pattern-triggered immunity responses. However, the precise mechanisms underlying SCOOP recognition and activation of MIK2 remain poorly understood. Here we present the cryogenic electron microscopy structure of a ternary complex consisting of the extracellular leucine-rich repeat (LRR) of MIK2 (MIK2LRR), SCOOP12 and the extracellular LRR of the co-receptor BAK1 (BAK1LRR) at a resolution of 3.34 Å. The structure reveals that a DNHH motif in MIK2LRR plays a critical role in specifically recognizing the highly conserved SxS motif of SCOOP12. Furthermore, the structure demonstrates that N-glycans at MIK2LRR directly interact with the N-terminal capping region of BAK1LRR. Mutation of the glycosylation site, MIK2LRR, completely abolishes the SCOOP12-independent interaction between MIK2LRR and BAK1LRR and substantially impairs the assembly of the MIK2LRR-SCOOP12-BAK1LRR complex. Supporting the biological relevance of N410-glycosylation, MIK2 substantially compromises SCOOP12-triggered immune responses in plants. Collectively, these findings elucidate the mechanism underlying the loose specificity of SCOOP recognition by MIK2 and reveal an unprecedented mechanism by which N-glycosylation modification of LRR-RK promotes receptor activation. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8yaa.cif.gz | 170.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8yaa.ent.gz | 132 KB | Display | PDB format |
| PDBx/mmJSON format | 8yaa.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8yaa_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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| Full document | 8yaa_full_validation.pdf.gz | 1.7 MB | Display | |
| Data in XML | 8yaa_validation.xml.gz | 36.3 KB | Display | |
| Data in CIF | 8yaa_validation.cif.gz | 52 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ya/8yaa ftp://data.pdbj.org/pub/pdb/validation_reports/ya/8yaa | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 39093MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 2 molecules CA
| #1: Protein | Mass: 19160.684 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Trichoplusia ni (cabbage looper)References: UniProt: Q94F62, receptor protein-tyrosine kinase, non-specific serine/threonine protein kinase |
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| #2: Protein | Mass: 71858.742 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Trichoplusia ni (cabbage looper)References: UniProt: Q8VZG8, non-specific serine/threonine protein kinase |
-Protein/peptide , 1 types, 1 molecules B
| #3: Protein/peptide | Mass: 1318.399 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
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-Sugars , 4 types, 20 molecules 
| #4: Polysaccharide | alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | ||||
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| #5: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #6: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | #7: Sugar | ChemComp-NAG / |
-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Ternary complex of MIK2-SCOOP12-BAK1 / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: Trichoplusia ni (cabbage looper) |
| Buffer solution | pH: 6 |
| Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 3.34 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 319127 / Symmetry type: POINT |
| Refinement | Highest resolution: 3.34 Å |
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Trichoplusia ni (cabbage looper)
FIELD EMISSION GUN