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 1.4 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: https://doi.org/10.1016/j.molcel.2007.05.023
  • Primary Citation of Related Structures:  
    2PX9

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SUMO-activating enzyme subunit 2217Homo sapiensMutation(s): 0 
EC: 6.3.2 (PDB Primary Data), 2.3.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBT2 (Homo sapiens)
Explore Q9UBT2 
Go to UniProtKB:  Q9UBT2
PHAROS:  Q9UBT2
GTEx:  ENSG00000126261 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UBT2
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
SUMO-conjugating enzyme UBC9158Homo sapiensMutation(s): 0 
EC: 6.3.2 (PDB Primary Data), 2.3.2 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P63279 (Homo sapiens)
Explore P63279 
Go to UniProtKB:  P63279
PHAROS:  P63279
GTEx:  ENSG00000103275 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63279
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-07-24
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-16
    Changes: Data collection, Database references, Derived calculations
  • Version 1.4: 2024-05-22
    Changes: Data collection