1AAR

STRUCTURE OF A DIUBIQUITIN CONJUGATE AND A MODEL FOR INTERACTION WITH UBIQUITIN CONJUGATING ENZYME (E2)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.190 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a diubiquitin conjugate and a model for interaction with ubiquitin conjugating enzyme (E2).

Cook, W.J.Jeffrey, L.C.Carson, M.Chen, Z.Pickart, C.M.

(1992) J.Biol.Chem. 267: 16467-16471


  • PubMed Abstract: 
  • Covalent ligation of multiubiquitin chains targets eukaryotic proteins for degradation. In such multiubiquitin chains, successive ubiquitins are linked by an isopeptide bond involving the side chain of Lys48 and the carboxyl group of Gly76. The cryst ...

    Covalent ligation of multiubiquitin chains targets eukaryotic proteins for degradation. In such multiubiquitin chains, successive ubiquitins are linked by an isopeptide bond involving the side chain of Lys48 and the carboxyl group of Gly76. The crystal structure of a diubiquitin conjugate has been determined and refined at 2.3-A resolution. The molecule has internal approximate 2-fold symmetry with multiple hydrophobic and hydrophilic contacts along the 2-fold axis. The structure of the diubiquitin conjugate suggests determinants for recognition of multiubiquitin chains. A model for the interaction of diubiquitin and a ubiquitin conjugating enzyme (E2) is proposed.


    Organizational Affiliation

    Department of Pathology, University of Alabama, Birmingham 35294.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DI-UBIQUITIN
A, B
76Bos taurusGene Names: UBC
Find proteins for P0CH28 (Bos taurus)
Go to Gene View: UBC
Go to UniProtKB:  P0CH28
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.190 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 32.100α = 105.90
b = 46.200β = 113.30
c = 25.400γ = 69.70
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-10
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance