2F4W

Human ubiquitin-conjugating enzyme E2 J2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

A human ubiquitin conjugating enzyme (E2)-HECT E3 ligase structure-function screen.

Sheng, Y.Hong, J.H.Doherty, R.Srikumar, T.Shloush, J.Avvakumov, G.V.Walker, J.R.Xue, S.Neculai, D.Wan, J.W.Kim, S.K.Arrowsmith, C.H.Raught, B.Dhe-Paganon, S.

(2012) Mol Cell Proteomics 11: 329-341

  • DOI: 10.1074/mcp.O111.013706
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Here we describe a systematic structure-function analysis of the human ubiquitin (Ub) E2 conjugating proteins, consisting of the determination of 15 new high-resolution three-dimensional structures of E2 catalytic domains, and autoubiquitylation assa ...

    Here we describe a systematic structure-function analysis of the human ubiquitin (Ub) E2 conjugating proteins, consisting of the determination of 15 new high-resolution three-dimensional structures of E2 catalytic domains, and autoubiquitylation assays for 26 Ub-loading E2s screened against a panel of nine different HECT (homologous to E6-AP carboxyl terminus) E3 ligase domains. Integration of our structural and biochemical data revealed several E2 surface properties associated with Ub chain building activity; (1) net positive or neutral E2 charge, (2) an "acidic trough" located near the catalytic Cys, surrounded by an extensive basic region, and (3) similarity to the previously described HECT binding signature in UBE2L3 (UbcH7). Mass spectrometry was used to characterize the autoubiquitylation products of a number of functional E2-HECT pairs, and demonstrated that HECT domains from different subfamilies catalyze the formation of very different types of Ub chains, largely independent of the E2 in the reaction. Our data set represents the first comprehensive analysis of E2-HECT E3 interactions, and thus provides a framework for better understanding the molecular mechanisms of ubiquitylation.


    Related Citations: 
    • Endoplasmic reticulum (ER)-associated degradation of T cell receptor subunits. Involvement of ER-associated ubiquitin-conjugating enzymes (E2s).
      Tiwari, S.,Weissman, A.M.
      (2001) J.Biol.Chem. 276: 16193


    Organizational Affiliation

    Department of Biology, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ubiquitin-conjugating enzyme E2, J2
A, B
187Homo sapiensMutation(s): 0 
Gene Names: UBE2J2 (NCUBE2)
EC: 2.3.2.23
Find proteins for Q8N2K1 (Homo sapiens)
Go to Gene View: UBE2J2
Go to UniProtKB:  Q8N2K1
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.186 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 79.070α = 90.00
b = 48.014β = 93.94
c = 91.032γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHASERphasing
ARP/wARPmodel building
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2005-12-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-11-28
    Type: Database references