TRIM23 RING domain

Experimental Data Snapshot

  • Resolution: 1.81 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 

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Structure and catalytic activation of the TRIM23 RING E3 ubiquitin ligase.

Dawidziak, D.M.Sanchez, J.G.Wagner, J.M.Ganser-Pornillos, B.K.Pornillos, O.

(2017) Proteins 85: 1957-1961

  • DOI: https://doi.org/10.1002/prot.25348
  • Primary Citation of Related Structures:  
    5VZV, 5VZW

  • PubMed Abstract: 

    Tripartite motif (TRIM) proteins comprise a large family of RING-type ubiquitin E3 ligases that regulate important biological processes. An emerging general model is that TRIMs form elongated antiparallel coiled-coil dimers that prevent interaction of the two attendant RING domains. The RING domains themselves bind E2 conjugating enzymes as dimers, implying that an active TRIM ligase requires higher-order oligomerization of the basal coiled-coil dimers. Here, we report crystal structures of the TRIM23 RING domain in isolation and in complex with an E2-ubiquitin conjugate. Our results indicate that TRIM23 enzymatic activity requires RING dimerization, consistent with the general model of TRIM activation.

  • Organizational Affiliation

    Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, Virginia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
E3 ubiquitin-protein ligase TRIM23
A, B, C
123Homo sapiensMutation(s): 0 
Gene Names: TRIM23ARD1ARFD1RNF46
UniProt & NIH Common Fund Data Resources
Find proteins for P36406 (Homo sapiens)
Explore P36406 
Go to UniProtKB:  P36406
PHAROS:  P36406
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP36406
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.81 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.189 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.717α = 90
b = 142.464β = 90
c = 45.427γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01-GM112508

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-09
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Database references
  • Version 1.2: 2020-01-01
    Changes: Author supporting evidence