2PX9

The intrinsic affinity between E2 and the Cys domain of E1 in Ubiquitin-like modifications


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 1000 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The intrinsic affinity between E2 and the Cys domain of E1 in ubiquitin-like modifications.

Wang, J.Hu, W.Cai, S.Lee, B.Song, J.Chen, Y.

(2007) Mol.Cell 27: 228-237

  • DOI: 10.1016/j.molcel.2007.05.023

  • PubMed Abstract: 
  • Ubiquitin-like modifications, which are carried out by similar biochemical mechanisms, regulate nearly every aspect of cellular function. Despite the recent advancements in characterizing their enzymology, our knowledge about the dynamic processes of ...

    Ubiquitin-like modifications, which are carried out by similar biochemical mechanisms, regulate nearly every aspect of cellular function. Despite the recent advancements in characterizing their enzymology, our knowledge about the dynamic processes of these modifications is still fragmentary. In this study, we have uncovered an intrinsic affinity between the SUMO E2 and the Cys domain of SUMO E1. NMR studies in combination with paramagnetic spin labeling demonstrate that this interaction is mediated by previously unknown interfaces on both E1 and E2 and places the two catalytic Cys residues of the two enzymes in close proximity. Site-directed mutagenesis and enzymatic assays indicate that the interaction is fundamentally important for the transfer of SUMO from E1 to E2. Results from this study suggest that the interaction between E2 and the Cys domain of E1 participates in guiding the E2's translocation to E1's enzymatic active site in ubiquitin-like modifications.


    Organizational Affiliation

    Division of Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SUMO-activating enzyme subunit 2
A
217Homo sapiensGene Names: UBA2 (SAE2, UBLE1B)
EC: 6.3.2.-
Find proteins for Q9UBT2 (Homo sapiens)
Go to Gene View: UBA2
Go to UniProtKB:  Q9UBT2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SUMO-conjugating enzyme UBC9
B
158Homo sapiensGene Names: UBE2I (UBC9, UBCE9)
EC: 6.3.2.-
Find proteins for P63279 (Homo sapiens)
Go to Gene View: UBE2I
Go to UniProtKB:  P63279
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 1000 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2PX9 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-24
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance