3UN9

Crystal structure of an immune receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure and Functional Characterization of the RNA-Binding Element of the NLRX1 Innate Immune Modulator.

Hong, M.Yoon, S.I.Wilson, I.A.

(2012) Immunity 36: 337-347

  • DOI: 10.1016/j.immuni.2011.12.018

  • PubMed Abstract: 
  • 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 pathog ...

    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 Å 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.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NLR family member X1
A, B, C
372Homo sapiensMutation(s): 0 
Gene Names: NLRX1 (NOD26, NOD5, NOD9)
Find proteins for Q86UT6 (Homo sapiens)
Go to Gene View: NLRX1
Go to UniProtKB:  Q86UT6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PT
Query on PT

Download SDF File 
Download CCD File 
A, B, C
PLATINUM (II) ION
Pt
HRGDZIGMBDGFTC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.223 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 99.011α = 90.00
b = 123.469β = 90.00
c = 145.848γ = 90.00
Software Package:
Software NamePurpose
SOLVEphasing
Blu-Icedata collection
MOSFLMdata reduction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-03-28
    Type: Initial release
  • Version 1.1: 2012-04-18
    Type: Database references