Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 556.04 kDa 
• Atom Count: 16580 
• Modelled Residue Count: 2072 
• Deposited Residue Count: 4884 
• Unique protein chains: 1

7DFV

Cryo-EM structure of plant NLR RPP1 tetramer core part

• PDB DOI: 10.2210/pdb7DFV/pdb
• EM Map EMD-30579: EMDB EMDataResource

• Classification: PLANT PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2020-11-10 Released: 2020-12-16 
• Deposition Author(s): Ma, S.C., Lapin, D., Liu, L., Sun, Y., Song, W., Zhang, X.X., Logemann, E., Yu, D.L., Wang, J., Jirschitzka, J., Han, Z.F., SchulzeLefert, P., Parker, J.E., Chai, J.J.
• Funding Organization(s): National Natural Science Foundation of China (NSFC), Alexander von Humboldt Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.99 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Direct pathogen-induced assembly of an NLR immune receptor complex to form a holoenzyme.

Ma, S., Lapin, D., Liu, L., Sun, Y., Song, W., Zhang, X., Logemann, E., Yu, D., Wang, J., Jirschitzka, J., Han, Z., Schulze-Lefert, P., Parker, J.E., Chai, J.

(2020) Science 370

• PubMed: 33273071 
• DOI: 10.1126/science.abe3069
• Primary Citation of Related Structures:  
  7CRB, 7CRC, 7DFV


• PubMed Abstract: 
  

Direct or indirect recognition of pathogen-derived effectors by plant nucleotide-binding leucine-rich repeat (LRR) receptors (NLRs) initiates innate immune responses. The Hyaloperonospora arabidopsidis effector ATR1 activates the N-terminal Toll-interleukin-1 receptor (TIR) domain of Arabidopsis NLR RPP1. We report a cryo-electron microscopy structure of RPP1 bound by ATR1. The structure reveals a C-terminal jelly roll/Ig-like domain (C-JID) for specific ATR1 recognition. Biochemical and functional analyses show that ATR1 binds to the C-JID and the LRRs to induce an RPP1 tetrameric assembly required for nicotinamide adenine dinucleotide hydrolase (NADase) activity. RPP1 tetramerization creates two potential active sites, each formed by an asymmetric TIR homodimer. Our data define the mechanism of direct effector recognition by a plant NLR leading to formation of a signaling-active holoenzyme.

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Organizational Affiliation: 

Cluster of Excellence in Plant Sciences (CEPLAS), 40225 Düsseldorf, Germany.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NAD+ hydrolase (NADase)	D [auth A], A [auth B], B [auth C], C [auth D]	1221	Arabidopsis thaliana	Mutation(s): 0  EC: 3.2.2.6
UniProt
Find proteins for Q9ZSN5 (Arabidopsis thaliana) Explore Q9ZSN5  Go to UniProtKB:  Q9ZSN5

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.99 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2020-11-10 
• Released Date: 2020-12-16 
Deposition Author(s): Ma, S.C., Lapin, D., Liu, L., Sun, Y., Song, W., Zhang, X.X., Logemann, E., Yu, D.L., Wang, J., Jirschitzka, J., Han, Z.F., SchulzeLefert, P., Parker, J.E., Chai, J.J.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31421001 for J.C.
Alexander von Humboldt Foundation	Germany	--

Revision History  

• Version 1.0: 2020-12-16
  Type: Initial release