7JLU

Structure of the activated Roq1 resistosome directly recognizing the pathogen effector XopQ


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
BPF01156e7jluB1 A: a/b three-layered sandwichesX: Nucleoside hydrolase (From Topology)H: Nucleoside hydrolase (From Topology)T: Nucleoside hydrolaseF: PF01156ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF20160C-JID domain (C-JID)C-JID domainC-terminal jelly roll/Ig-like domain (C-JID) was defined in cryogenic electron microscopy (cryoEM) structures of plant intracellular immune receptors containing Toll/interleukin-1 receptor (TIR, PF01582), nucleotide-binding (NB-ARC, PF00931) and leuc ...C-terminal jelly roll/Ig-like domain (C-JID) was defined in cryogenic electron microscopy (cryoEM) structures of plant intracellular immune receptors containing Toll/interleukin-1 receptor (TIR, PF01582), nucleotide-binding (NB-ARC, PF00931) and leucine-rich repeat (LRR) domains (TIR-NLRs) [1,2]. Structurally, the C-JID core is represented by a beta-sandwich made up of 8 to 9 beta-strands. C-JID matches the so-called post-LRR or C-terminal non-LRR domain detected earlier via MEME and BLAST searches [3,7]. The domain showed a strong distribution bias towards TIR-NLRs of dicotyledonous plant species despite broader taxonomic distribution of TIR-NLR in plant groups [1-7]. Structure-function analyses of cryoEM structures suggest that C-JID domains play a role in substrate recognition, such as binding to effector proteins from pathogens, and thus are involved in the initiation of signaling by TIR-NLR receptors [1,2]. Presence of C-JID (or post-LRR) and its importance for the function of Arabidopsis TIR-NLR RPS4 that partners with RRS1 for effector recognition suggest that C-JID has additional functions [4-6].
Domain
PF01156Inosine-uridine preferring nucleoside hydrolase (IU_nuc_hydro)Inosine-uridine preferring nucleoside hydrolase- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Disease resistance protein Roq1 -
XopQ -