2IY1

SENP1 (mutant) full length SUMO1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.46 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.251 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Sumo Protease Senp1 Induces Isomerization of the Scissile Peptide Bond.

Shen, L.Tatham, M.H.Dong, C.Zagorska, A.Naismith, J.H.Hay, R.T.

(2006) Nat Struct Mol Biol 13: 1069

  • DOI: https://doi.org/10.1038/nsmb1172
  • Primary Citation of Related Structures:  
    2IY0, 2IY1

  • PubMed Abstract: 

    Small ubiquitin-like modifier (SUMO)-specific protease SENP1 processes SUMO-1, SUMO-2 and SUMO-3 to mature forms and deconjugates them from modified proteins. To establish the proteolytic mechanism, we determined structures of catalytically inactive SENP1 bound to SUMO-1-modified RanGAP1 and to unprocessed SUMO-1. In each case, the scissile peptide bond is kinked at a right angle to the C-terminal tail of SUMO-1 and has the cis configuration of the amide nitrogens. SENP1 preferentially processes SUMO-1 over SUMO-2, but binding thermodynamics of full-length SUMO-1 and SUMO-2 to SENP1 and K(m) values for processing are very similar. However, k(cat) values differ by 50-fold. Thus, discrimination between unprocessed SUMO-1 and SUMO-2 by SENP1 is based on a catalytic step rather than substrate binding and is likely to reflect differences in the ability of SENP1 to correctly orientate the scissile bonds in SUMO-1 and SUMO-2.


  • Organizational Affiliation

    Centre for Interdisciplinary Research, School of Life Science, University of Dundee, DD1 5EH, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
SENTRIN-SPECIFIC PROTEASE 1
A, C
226Homo sapiensMutation(s): 1 
EC: 3.4.22
UniProt & NIH Common Fund Data Resources
Find proteins for Q9P0U3 (Homo sapiens)
Explore Q9P0U3 
Go to UniProtKB:  Q9P0U3
PHAROS:  Q9P0U3
GTEx:  ENSG00000079387 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9P0U3
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
SMALL UBIQUITIN-RELATED MODIFIER 1
B, D
83Homo sapiensMutation(s): 0 
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
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.46 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.251 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 141.232α = 90
b = 141.232β = 90
c = 98.964γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-08-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2017-06-28
    Changes: Data collection