4AP4

Rnf4 - ubch5a - ubiquitin heterotrimeric complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Structure of a Ring E3 Ligase and Ubiquitin-Loaded E2 Primed for Catalysis

Plechanovova, A.Jaffray, E.Tatham, M.H.Naismith, J.H.Hay, R.T.

(2012) Nature 489: 115

  • DOI: 10.1038/nature11376

  • PubMed Abstract: 
  • Ubiquitin modification is mediated by a large family of specificity determining ubiquitin E3 ligases. To facilitate ubiquitin transfer, RING E3 ligases bind both substrate and a ubiquitin E2 conjugating enzyme linked to ubiquitin via a thioester bond ...

    Ubiquitin modification is mediated by a large family of specificity determining ubiquitin E3 ligases. To facilitate ubiquitin transfer, RING E3 ligases bind both substrate and a ubiquitin E2 conjugating enzyme linked to ubiquitin via a thioester bond, but the mechanism of transfer has remained elusive. Here we report the crystal structure of the dimeric RING domain of rat RNF4 in complex with E2 (UbcH5A) linked by an isopeptide bond to ubiquitin. While the E2 contacts a single protomer of the RING, ubiquitin is folded back onto the E2 by contacts from both RING protomers. The carboxy-terminal tail of ubiquitin is locked into an active site groove on the E2 by an intricate network of interactions, resulting in changes at the E2 active site. This arrangement is primed for catalysis as it can deprotonate the incoming substrate lysine residue and stabilize the consequent tetrahedral transition-state intermediate.


    Organizational Affiliation

    Wellcome Trust Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dundee DD1 5EH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
E3 UBIQUITIN LIGASE RNF4
A
133Rattus norvegicusMutation(s): 0 
Gene Names: Rnf4 (Snurf)
EC: 2.3.2.27
Find proteins for O88846 (Rattus norvegicus)
Go to UniProtKB:  O88846
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
UBIQUITIN-CONJUGATING ENZYME E2 D1
B, E
153Homo sapiensMutation(s): 2 
Gene Names: UBE2D1 (SFT, UBC5A, UBCH5, UBCH5A)
EC: 2.3.2.23
Find proteins for P51668 (Homo sapiens)
Go to Gene View: UBE2D1
Go to UniProtKB:  P51668
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
UBIQUITIN C
C, F
80Homo sapiensMutation(s): 0 
Gene Names: UBC
Find proteins for P0CG48 (Homo sapiens)
Go to Gene View: UBC
Go to UniProtKB:  P0CG48
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.21 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.207 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 50.480α = 90.00
b = 65.090β = 90.00
c = 189.650γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
xia2data scaling
REFMACrefinement
xia2data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release
  • Version 1.1: 2012-09-12
    Type: Database references, Structure summary
  • Version 1.2: 2012-10-10
    Type: Database references
  • Version 1.3: 2017-06-28
    Type: Data collection
  • Version 1.4: 2019-07-31
    Type: Advisory, Data collection, Derived calculations