3ZJD

A20 OTU domain in reduced, active state at 1.87 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Regulation of A20 and Other Otu Deubiquitinases by Reversible Oxidation

Kulathu, Y.Garcia, F.J.Mevissen, T.E.T.Busch, M.Arnaudo, N.Carroll, K.S.Barford, D.Komander, D.

(2013) Nat Commun 4: 1569

  • DOI: 10.1038/ncomms2567
  • Primary Citation of Related Structures:  
    3ZJD, 3ZJE, 3ZJF, 3ZJG

  • PubMed Abstract: 
  • Protein ubiquitination is a highly versatile post-translational modification that regulates as diverse processes as protein degradation and kinase activation. Deubiquitinases hydrolyse ubiquitin modifications from proteins and are hence key regulators of the ubiquitin system ...

    Protein ubiquitination is a highly versatile post-translational modification that regulates as diverse processes as protein degradation and kinase activation. Deubiquitinases hydrolyse ubiquitin modifications from proteins and are hence key regulators of the ubiquitin system. Ovarian tumour deubiquitinases comprise a family of fourteen human enzymes, many of which regulate cellular signalling pathways. Ovarian tumour deubiquitinases are cysteine proteases that cleave polyubiquitin chains in vitro and in cells, but little is currently known about their regulation. Here we show that ovarian tumour deubiquitinases are susceptible to reversible oxidation of the catalytic cysteine residue. High-resolution crystal structures of the catalytic domain of A20 in four different oxidation states reveal that the reversible form of A20 oxidation is a cysteine sulphenic acid intermediate, which is stabilised by the architecture of the catalytic centre. Using chemical tools to detect sulphenic acid intermediates, we show that many ovarian tumour deubiquitinases undergo reversible oxidation upon treatment with H2O2, revealing a new mechanism to regulate deubiquitinase activity.


    Organizational Affiliation

    Division of Protein and Nucleic Acid Chemistry, MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
A20P50A, B366Homo sapiensMutation(s): 1 
Gene Names: TNFAIP3OTUD7C
EC: 3.4.19.12 (PDB Primary Data), 6.3.2 (PDB Primary Data), 2.3.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P21580 (Homo sapiens)
Explore P21580 
Go to UniProtKB:  P21580
PHAROS:  P21580
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.87 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.69α = 99.04
b = 68.97β = 100.09
c = 84.3γ = 96.95
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-03-20
    Changes: Database references