1NE7

HUMAN GLUCOSAMINE-6-PHOSPHATE DEAMINASE ISOMERASE AT 1.75 A RESOLUTION COMPLEXED WITH N-ACETYL-GLUCOSAMINE-6-PHOSPHATE AND 2-DEOXY-2-AMINO-GLUCITOL-6-PHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Two mammalian glucosamine-6-phosphate deaminases: a structural and genetic study.

Arreola, R.Valderrama, B.Morante, M.L.Horjales, E.

(2003) Febs Lett. 551: 63-70


  • PubMed Abstract: 
  • Glucosamine-6-phosphate deaminase (EC 3.5.99.6) is an allosteric enzyme that catalyzes the reversible conversion of D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium. Here we describe the existence of two mammalian glucosamine-6-phos ...

    Glucosamine-6-phosphate deaminase (EC 3.5.99.6) is an allosteric enzyme that catalyzes the reversible conversion of D-glucosamine-6-phosphate into D-fructose-6-phosphate and ammonium. Here we describe the existence of two mammalian glucosamine-6-phosphate deaminase enzymes. We present the crystallographic structure of one of them, the long human glucosamine-6-phosphate deaminase, at 1.75 A resolution. Crystals belong to the space group P2(1)2(1)2(1) and present a whole hexamer in the asymmetric unit. The active-site lid (residues 162-182) presented significant structural differences among monomers. Interestingly the region with the largest differences, when compared with the Escherichia coli homologue, was found to be close to the active site. These structural differences can be related to the kinetic and allosteric properties of both mammalian enzymes.


    Related Citations: 
    • Glucosamine-6-phosphate deaminase from beef kidney is an allosteric system of the V-type.
      Lara-Lemus, R.,Calcagno, M.L.
      (1998) BIOCHIM.BIOPHYS.ACTA 1388: 1
    • Structure and catalytic mechanism of glucosamine 6-phosphate deaminase from Escherichia coli at 2.1 A resolution.
      Oliva, G.,Fontes, M.R.,Garratt, R.C.,Altamirano, M.M.,Calcagno, M.L.,Horjales, E.
      (1995) Structure 3: 1323


    Organizational Affiliation

    Instituto de Biotecnología, Universidad Nacional Autónoma de México, PO Box 510-3, Cuernavaca, 62250 Morelos, Mexico. arreola@ibt.unam.mx




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glucosamine-6-phosphate isomerase
A, B, C, D, E, F
289Homo sapiensMutation(s): 0 
Gene Names: GNPDA1 (GNPI, HLN, KIAA0060)
EC: 3.5.99.6
Find proteins for P46926 (Homo sapiens)
Go to Gene View: GNPDA1
Go to UniProtKB:  P46926
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D, E, F
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GLC
Query on GLC

Download SDF File 
Download CCD File 
A, B, C, D, E, F
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
16G
Query on 16G

Download SDF File 
Download CCD File 
A, B, C, D, E, F
N-ACETYL-D-GLUCOSAMINE-6-PHOSPHATE
C8 H16 N O9 P
BRGMHAYQAZFZDJ-PVFLNQBWSA-N
 Ligand Interaction
AGP
Query on AGP

Download SDF File 
Download CCD File 
A, B, C, D, E, F
2-DEOXY-2-AMINO GLUCITOL-6-PHOSPHATE
C6 H16 N O8 P
LBNVXZROMBUNNQ-SLPGGIOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 109.877α = 90.00
b = 110.892β = 90.00
c = 180.881γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
CNSphasing
SCALAdata scaling
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-09-23
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance