2LAS

Molecular Determinants of Paralogue-Specific SUMO-SIM Recognition


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Insights into High Affinity Small Ubiquitin-like Modifier (SUMO) Recognition by SUMO-interacting Motifs (SIMs) Revealed by a Combination of NMR and Peptide Array Analysis.

Namanja, A.T.Li, Y.J.Su, Y.Wong, S.Lu, J.Colson, L.T.Wu, C.Li, S.S.Chen, Y.

(2012) J.Biol.Chem. 287: 3231-3240

  • DOI: 10.1074/jbc.M111.293118

  • PubMed Abstract: 
  • The small ubiquitin-like modifiers (SUMOs) regulate many essential cellular functions. Only one type of SUMO-interacting motif (SIM) has been identified that can extend the β-sheet of SUMO as either a parallel or an antiparallel strand. The molecular ...

    The small ubiquitin-like modifiers (SUMOs) regulate many essential cellular functions. Only one type of SUMO-interacting motif (SIM) has been identified that can extend the β-sheet of SUMO as either a parallel or an antiparallel strand. The molecular determinants of the bound orientation and paralogue specificity of a SIM are unclear. To address this question, we have conducted structural studies of SUMO1 in complex with a SUMO1-specific SIM that binds to SUMO1 with high affinity without post-translational modifications using nuclear magnetic resonance methods. In addition, the SIM sequence requirements have been investigated by peptide arrays in comparison with another high affinity SIM that binds in the opposing orientation. We found that antiparallel binding SIMs tolerate more diverse sequences, whereas the parallel binding SIMs prefer the more strict sequences consisting of (I/V)DLT that have a preference in high affinity SUMO2 and -3 binding. Comparison of two high affinity SUMO1-binding SIMs that bind in opposing orientations has revealed common SUMO1-specific interactions needed for high affinity binding. This study has significantly advanced our understanding of the molecular determinants underlining SUMO-SIM recognition.


    Organizational Affiliation

    Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California 91010, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Small ubiquitin-related modifier 1
A
101Homo sapiensGene Names: SUMO1 (SMT3C, SMT3H3, UBL1)
Find proteins for P63165 (Homo sapiens)
Go to Gene View: SUMO1
Go to UniProtKB:  P63165
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
M-IR2_peptide
B
13Homo sapiensGene Names: RANBP2 (NUP358)
EC: 6.3.2.-
Find proteins for P49792 (Homo sapiens)
Go to Gene View: RANBP2
Go to UniProtKB:  P49792
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 
  • Olderado: 2LAS Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-12-14
    Type: Initial release
  • Version 1.1: 2012-02-15
    Type: Database references
  • Version 1.2: 2016-04-27
    Type: Structure summary