5FEY

TRIM32 RING


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.248 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Functional role of TRIM E3 ligase oligomerization and regulation of catalytic activity.

Koliopoulos, M.G.Esposito, D.Christodoulou, E.Taylor, I.A.Rittinger, K.

(2016) Embo J. 35: 1204-1218

  • DOI: 10.15252/embj.201593741
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • TRIM E3 ubiquitin ligases regulate a wide variety of cellular processes and are particularly important during innate immune signalling events. They are characterized by a conserved tripartite motif in their N-terminal portion which comprises a canoni ...

    TRIM E3 ubiquitin ligases regulate a wide variety of cellular processes and are particularly important during innate immune signalling events. They are characterized by a conserved tripartite motif in their N-terminal portion which comprises a canonical RING domain, one or two B-box domains and a coiled-coil region that mediates ligase dimerization. Self-association via the coiled-coil has been suggested to be crucial for catalytic activity of TRIMs; however, the precise molecular mechanism underlying this observation remains elusive. Here, we provide a detailed characterization of the TRIM ligases TRIM25 and TRIM32 and show how their oligomeric state is linked to catalytic activity. The crystal structure of a complex between the TRIM25 RING domain and an ubiquitin-loaded E2 identifies the structural and mechanistic features that promote a closed E2~Ub conformation to activate the thioester for ubiquitin transfer allowing us to propose a model for the regulation of activity in the full-length protein. Our data reveal an unexpected diversity in the self-association mechanism of TRIMs that might be crucial for their biological function.


    Organizational Affiliation

    Mill Hill Laboratory, Molecular Structure of Cell Signalling Laboratory, The Francis Crick Institute, London, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase TRIM32
A, B
94Homo sapiensMutation(s): 0 
Gene Names: TRIM32 (HT2A)
EC: 2.3.2.27
Find proteins for Q13049 (Homo sapiens)
Go to Gene View: TRIM32
Go to UniProtKB:  Q13049
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.248 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 54.536α = 90.00
b = 54.536β = 90.00
c = 99.120γ = 90.00
Software Package:
Software NamePurpose
AutoSolphasing
XDSdata reduction
XDSdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomU117565398
The Francis Crick InstituteUnited KingdomFCI01

Revision History 

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2016-06-15
    Type: Database references
  • Version 1.2: 2017-09-13
    Type: Author supporting evidence