1XFF

Glutaminase domain of glucosamine 6-phosphate synthase complexed with glutamate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 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

  • Primary Citation of Related Structures:  

  • 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: 
    • Channeling of Ammonia in Glucosamine 6-Phosphate Synthase
      Teplyakov, A.,Obmolova, G.,Badet-Denisot, M.A.,Badet, B.
      (2001) J.Mol.Biol. 313: 1093
    • 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


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glucosamine--fructose-6-phosphate aminotransferase [isomerizing]
A, B
240Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: glmS
EC: 2.6.1.16
Find proteins for P17169 (Escherichia coli (strain K12))
Go to UniProtKB:  P17169
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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Download CCD File 
A, B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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

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Download CCD File 
A, B
GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-VKHMYHEASA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
GLUKi: 15000 nM BINDINGMOAD
GLUKi: 15000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Work: 0.161 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 70.380α = 90.00
b = 82.520β = 90.00
c = 86.050γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
REFMACrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-09-28
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-10-03
    Type: Data collection, Database references