3un9

Crystal structure of an immune receptorCrystal structure of an immune receptor

Structural highlights 3un9 is a 3 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: Gene: NLRX1, NOD26, NOD5, NOD9 (Homo sapiens) Resources: FirstGlance, OCA, RCSB, PDBsum Publication Abstract from PubMed Mitochondrial NLRX1 is a member of the family of nucleotide-binding domain and leucine-rich-repeat-containing proteins (NLRs) that mediate host innate immunity as intracellular surveillance sensors against common molecular patterns of invading pathogens. NLRX1 functions in antiviral immunity, but the molecular mechanism of its ligand-induced activation is largely unknown. The crystal structure of the C-terminal fragment (residues 629-975) of human NLRX1 (cNLRX1) at 2.65 A resolution reveals that cNLRX1 consists of an N-terminal helical (LRRNT) domain, central leucine-rich repeat modules (LRRM), and a C-terminal three-helix bundle (LRRCT). cNLRX1 assembles into a compact hexameric architecture that is stabilized by intersubunit and interdomain interactions of LRRNT and LRRCT in the trimer and dimer components of the hexamer, respectively. Furthermore, we find that cNLRX1 interacts directly with RNA and supports a role for NLRX1 in recognition of intracellular viral RNA in antiviral immunity. Structure and Functional Characterization of the RNA-Binding Element of the NLRX1 Innate Immune Modulator.,Hong M, Yoon SI, Wilson IA Immunity. 2012 Mar 23;36(3):337-47. Epub 2012 Mar 1. PMID:22386589 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

spinqualitylabelsall models 3un9, resolution 2.65Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image