6BZH

Structure of mouse RIG-I tandem CARDs


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.229 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Identification of a second binding site on the TRIM25 B30.2 domain.

D'Cruz, A.A.Kershaw, N.J.Hayman, T.J.Linossi, E.M.Chiang, J.J.Wang, M.K.Dagley, L.F.Kolesnik, T.B.Zhang, J.G.Masters, S.L.Griffin, M.D.W.Gack, M.U.Murphy, J.M.Nicola, N.A.Babon, J.J.Nicholson, S.E.

(2018) Biochem J 475: 429-440

  • DOI: 10.1042/BCJ20170427
  • Primary Citation of Related Structures:  
    6BZH

  • PubMed Abstract: 
  • The r etinoic acid- i nducible g ene- I (RIG-I) receptor recognizes short 5'-di- and triphosphate base-paired viral RNA and is a critical mediator of the innate immune response against viruses such as influenza A, Ebola, HI ...

    The r etinoic acid- i nducible g ene- I (RIG-I) receptor recognizes short 5'-di- and triphosphate base-paired viral RNA and is a critical mediator of the innate immune response against viruses such as influenza A, Ebola, HIV and hepatitis C. This response is reported to require an orchestrated interaction with the tri partite m otif 25 (TRIM25) B30.2 protein-interaction domain. Here, we present a novel second RIG-I-binding interface on the TRIM25 B30.2 domain that interacts with CARD1 and CARD2 ( c aspase a ctivation and r ecruitment d omains) of RIG-I and is revealed by the removal of an N-terminal α-helix that mimics dimerization of the full-length protein. Further characterization of the TRIM25 coiled-coil and B30.2 regions indicated that the B30.2 domains move freely on a flexible tether, facilitating RIG-I CARD recruitment. The identification of a dual binding mode for the TRIM25 B30.2 domain is a first for the SPRY/B30.2 domain family and may be a feature of other SPRY/B30.2 family members.


    Organizational Affiliation

    The University of Melbourne, Parkville, Victoria, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Probable ATP-dependent RNA helicase DDX58 ABCDE194Mus musculusMutation(s): 0 
Gene Names: Ddx58
EC: 3.6.4.13
Find proteins for Q6Q899 (Mus musculus)
Explore Q6Q899 
Go to UniProtKB:  Q6Q899
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.226 
  • R-Value Observed: 0.229 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.19α = 90
b = 97.56β = 90
c = 113.29γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SCALAdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Heath and Medical Research CouncilAustralia--

Revision History 

  • Version 1.0: 2018-01-17
    Type: Initial release
  • Version 1.1: 2018-01-31
    Changes: Database references