1XFF

Glutaminase domain of glucosamine 6-phosphate synthase complexed with glutamate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Work: 0.161 
  • R-Value Observed: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Substrate Binding is Required for Assembly of the Active Conformation of the Catalytic Site in Ntn Amidotransferases: Evidence from the 1.8 Angstrom Crystal Structure of the Glutaminase Domain of Glucosamine 6-Phosphate Synthase

Isupov, M.N.Obmolova, G.Butterworth, S.Badet-Denisot, M.-A.Badet, B.Polikarpov, I.Littlechild, J.A.Teplyakov, A.

(1996) Structure 4: 801-810

  • DOI: 10.1016/s0969-2126(96)00087-1
  • Primary Citation of Related Structures:  
    1XFF, 1XFG

  • PubMed Abstract: 
  • Amidotransferases use the amide nitrogen of glutamine in a number of important biosynthetic reactions. They are composed of a glutaminase domain, which catalyzes the hydrolysis of glutamine to glutamate and ammonia, and a synthetase domain, catalyzin ...

    Amidotransferases use the amide nitrogen of glutamine in a number of important biosynthetic reactions. They are composed of a glutaminase domain, which catalyzes the hydrolysis of glutamine to glutamate and ammonia, and a synthetase domain, catalyzing amination of the substrate. To gain insight into the mechanism of nitrogen transfer, we examined the structure of the glutaminase domain of glucosamine 6-phosphate synthase (GLMS).


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of the Two Domains of Glucosamine-6-Phosphate Synthase from Escherichia Coli
      Obmolova, G., Badet-Denisot, M.A., Badet, B., Teplyakov, A.
      (1994) J Mol Biol 242: 703
    • Channeling of Ammonia in Glucosamine 6-Phosphate Synthase
      Teplyakov, A., Obmolova, G., Badet-Denisot, M.A., Badet, B.
      (2001) J Mol Biol 313: 1093

    Organizational Affiliation

    Department of Chemistry and Biological Sciences, University of Exeter, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glucosamine--fructose-6-phosphate aminotransferase [isomerizing]AB240Escherichia coliMutation(s): 0 
Gene Names: glmS
EC: 2.6.1.16
Find proteins for P17169 (Escherichia coli (strain K12))
Explore P17169 
Go to UniProtKB:  P17169
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GLU
Query on GLU

Download CCD File 
A, B
GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-VKHMYHEASA-N
 Ligand Interaction
ACT
Query on ACT

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
NA
Query on NA

Download CCD File 
A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GLUKi:  15000   nM  Binding MOAD
GLUKi :  15000   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Work: 0.161 
  • R-Value Observed: 0.161 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.38α = 90
b = 82.52β = 90
c = 86.05γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-09-28
    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: 2018-10-03
    Changes: Data collection, Database references