1MOQ

ISOMERASE DOMAIN OF GLUCOSAMINE 6-PHOSPHATE SYNTHASE COMPLEXED WITH GLUCOSAMINE 6-PHOSPHATE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Work: 0.185 

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This is version 1.3 of the entry. See complete history. 


Literature

Involvement of the C terminus in intramolecular nitrogen channeling in glucosamine 6-phosphate synthase: evidence from a 1.6 A crystal structure of the isomerase domain.

Teplyakov, A., Obmolova, G., Badet-Denisot, M.A., Badet, B., Polikarpov, I.

(1998) Structure 6: 1047-1055

  • DOI: 10.1016/s0969-2126(98)00105-1
  • Primary Citation of Related Structures:  
    1MOQ

  • PubMed Abstract: 

    • Glucosamine 6-phosphate synthase (GlmS) catalyses the first step in hexosamine metabolism, converting fructose-6P (6 phosphate) into glucosamine-6P using glutamine as a nitrogen source. GlmS is a bienzyme complex consisting of two domains that catalyse glutamine hydrolysis and sugar-phosphate isomerisation, respectively ...

    Glucosamine 6-phosphate synthase (GlmS) catalyses the first step in hexosamine metabolism, converting fructose-6P (6 phosphate) into glucosamine-6P using glutamine as a nitrogen source. GlmS is a bienzyme complex consisting of two domains that catalyse glutamine hydrolysis and sugar-phosphate isomerisation, respectively. Knowledge of the three-dimensional structure of GlmS is essential for understanding the general principles of catalysis by ketol isomerases and the mechanism of nitrogen transfer in glutamine amidotransferases.

    Related Citations: 
    • The Mechanism of Sugar Phosphate Isomerization by Glucosamine 6-Phosphate Synthase
      Teplyakov, A., Obmolova, G., Badet-Denisot, M.A., Badet, B.
      (1999) Protein Sci 8: 596
    • Erratum. Substrate Binding is Required for Assembly of the Active Conformation of the Catalytic Site in Ntn Amidotransferases: Evidence from the 1.8 A 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.
      (1997) Structure 5: 723
    • Substrate Binding is Required for Assembly of the Active Conformation of the Catalytic Site in Ntn Amidotransferases: Evidence from the 1.8 A 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
    • 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: 

    European Molecular Biology Laboratory, Germany. alexeyt@intra.niddk.nih.gov



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
GLUCOSAMINE 6-PHOSPHATE SYNTHASEA368Escherichia coliMutation(s): 0 
EC: 2.6.1.16
UniProt
Find proteins for P17169 (Escherichia coli (strain K12))
Explore P17169 
Go to UniProtKB:  P17169
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP17169
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GLP
Query on GLP
Download Ideal Coordinates CCD File 
B [auth A]2-amino-2-deoxy-6-O-phosphono-alpha-D-glucopyranose
C6 H14 N O8 P
XHMJOUIAFHJHBW-UKFBFLRUSA-N		 Ligand Interaction
MES
Query on MES
Download Ideal Coordinates CCD File 
I [auth A]2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N		 Ligand Interaction
MRD
Query on MRD
Download Ideal Coordinates CCD File 
J [auth A](4R)-2-METHYLPENTANE-2,4-DIOL
C6 H14 O2
SVTBMSDMJJWYQN-RXMQYKEDSA-N		 Ligand Interaction
SO4
Query on SO4
Download Ideal Coordinates CCD File 
C [auth A],
D [auth A],
E [auth A],
F [auth A],
G [auth A]		SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
NA
Query on NA
Download Ideal Coordinates CCD File 
H [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
GLP Binding MOAD:  1MOQ Ki: 3.50e+5 (nM) from 1 assay(s)
PDBBind:  1MOQ Ki: 3.50e+5 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.57 Å
  • R-Value Work: 0.185 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 143.7α = 90
b = 143.7β = 90
c = 173.6γ = 120
Software Package:
Software NamePurpose
CCP4model building
PROLSQrefinement
DENZOdata reduction
SCALEPACKdata scaling
CCP4phasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-10-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary