2ASQ

Solution Structure of SUMO-1 in Complex with a SUMO-binding Motif (SBM)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Small Ubiquitin-like Modifier (SUMO) Recognition of a SUMO Binding Motif: A reversal of the bound orientation

Song, J.Zhang, Z.Hu, W.Chen, Y.

(2005) J Biol Chem 280: 40122-40129

  • DOI: 10.1074/jbc.M507059200
  • Primary Citation of Related Structures:  
    2ASQ

  • PubMed Abstract: 
  • Sumoylation has recently been identified as an important mechanism that regulates protein interactions and localization in essential cellular functions, such as gene transcription, subnuclear structure formation, viral infection, and cell cycle progression ...

    Sumoylation has recently been identified as an important mechanism that regulates protein interactions and localization in essential cellular functions, such as gene transcription, subnuclear structure formation, viral infection, and cell cycle progression. A SUMO binding amino acid sequence motif (SBM), which recognizes the SUMO moiety of modified proteins in sumoylation-dependent cellular functions, has been consistently identified by several recent studies. To understand the mechanism of SUMO recognition by the SBM, we have solved the solution structure of SUMO-1 in complex with a peptide containing the SBM derived from the protein PIASX (KVDVIDLTIESSSDEEEDPPAKR). Surprisingly, the structure reveals that the bound orientation of the SBM can reverse depending on the sequence context. The structure also reveals a novel mechanism of recognizing target sequences by a ubiquitin-like module. Unlike ubiquitin binding motifs, which all form helices and bind to the main beta-sheet of ubiquitin, the SBM forms an extended structure that binds between the alpha-helix and a beta-strand of SUMO-1. This study provides a clear mechanism of the SBM sequence variations and its recognition of the SUMO moiety in sumoylated proteins.


    Organizational Affiliation

    Division of Immunology and Graduate School of Biological Sciences, Beckman Research Institute of the City of Hope, Duarte, California 91010, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Small ubiquitin-related modifier 1A97Homo sapiensMutation(s): 0 
Gene Names: SUMO1SMT3CSMT3H3UBL1OK/SW-cl.43
UniProt & NIH Common Fund Data Resources
Find proteins for P63165 (Homo sapiens)
Explore P63165 
Go to UniProtKB:  P63165
PHAROS:  P63165
GTEx:  ENSG00000116030 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63165
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Protein inhibitor of activated STAT2B25Homo sapiensMutation(s): 0 
Gene Names: PIAS2PIASX
EC: 2.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for O75928 (Homo sapiens)
Explore O75928 
Go to UniProtKB:  O75928
PHAROS:  O75928
GTEx:  ENSG00000078043 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO75928
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 
  • OLDERADO: 2ASQ Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-10-11
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-09
    Changes: Data collection, Database references, Derived calculations