1K92

Crystal Structure of Uncomplexed E. coli Argininosuccinate Synthetase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.163 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The 1.6 A crystal structure of E. coli argininosuccinate synthetase suggests a conformational change during catalysis.

Lemke, C.T.Howell, P.L.

(2001) Structure 9: 1153-1164

  • DOI: https://doi.org/10.1016/s0969-2126(01)00683-9
  • Primary Citation of Related Structures:  
    1K92, 1K97

  • PubMed Abstract: 

    Argininosuccinate synthetase (AS) is the rate-limiting enzyme of both the urea and arginine-citrulline cycles. In mammals, deficiency of AS leads to citrullinemia, a debilitating and often fatal autosomal recessive urea cycle disorder, whereas its overexpression for sustained nitric oxide production via the arginine-citrulline cycle leads to the potentially fatal hypotension associated with septic and cytokine-induced circulatory shock.


  • Organizational Affiliation

    Structural Biology and Biochemistry, Research Institute, Hospital for Sick Children, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ARGININOSUCCINATE SYNTHASE455Escherichia coliMutation(s): 0 
Gene Names: ARGG
EC: 6.3.4.5
UniProt
Find proteins for P0A6E4 (Escherichia coli (strain K12))
Explore P0A6E4 
Go to UniProtKB:  P0A6E4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A6E4
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.163 
  • R-Value Observed: 0.163 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.699α = 90
b = 105.837β = 90
c = 127.333γ = 90
Software Package:
Software NamePurpose
PHASESphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-12-07
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model
  • Version 1.4: 2024-02-07
    Changes: Data collection, Database references, Derived calculations