1DQR

CRYSTAL STRUCTURE OF RABBIT PHOSPHOGLUCOSE ISOMERASE, A GLYCOLYTIC ENZYME THAT MOONLIGHTS AS NEUROLEUKIN, AUTOCRINE MOTILITY FACTOR, AND DIFFERENTIATION MEDIATOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of rabbit phosphoglucose isomerase, a glycolytic enzyme that moonlights as neuroleukin, autocrine motility factor, and differentiation mediator.

Jeffery, C.J.Bahnson, B.J.Chien, W.Ringe, D.Petsko, G.A.

(2000) Biochemistry 39: 955-964


  • PubMed Abstract: 
  • The multifunctional protein phosphoglucose isomerase, also known as neuroleukin, autocrine motility factor, and differentiation and maturation mediator, has different roles inside and outside the cell. In the cytoplasm, it catalyzes the second step i ...

    The multifunctional protein phosphoglucose isomerase, also known as neuroleukin, autocrine motility factor, and differentiation and maturation mediator, has different roles inside and outside the cell. In the cytoplasm, it catalyzes the second step in glycolysis. Outside the cell, it serves as a nerve growth factor and cytokine. We have determined the three-dimensional structure of rabbit muscle phosphoglucose isomerase complexed with the competitive inhibitor D-gluconate 6-phosphate by X-ray crystallography at 2.5 A resolution. The structure shows that the enzyme is a dimer with two alpha/beta-sandwich domains in each subunit. The location of the bound D-gluconate 6-phosphate inhibitor leads to the identification of residues involved in substrate specificity (Ser209, Ser159, Thr214, Thr217, and Thr211). The results of previously published kinetic studies suggest that a lysine and a histidine are involved in the catalytic mechanism. The crystal structure suggests active site residues Lys518 and His388 might be these residues. In addition, the positions of amino acid residues that are substituted in the genetic disease nonspherocytic hemolytic anemia suggest how these substitutions can result in altered catalysis or protein stability.


    Organizational Affiliation

    Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, Massachusetts 02454-9110, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHOSPHOGLUCOSE ISOMERASE
A, B
557Oryctolagus cuniculusGene Names: GPI
EC: 5.3.1.9
Find proteins for Q9N1E2 (Oryctolagus cuniculus)
Go to Gene View: GPI
Go to UniProtKB:  Q9N1E2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
6PG
Query on 6PG

Download SDF File 
Download CCD File 
A, B
6-PHOSPHOGLUCONIC ACID
C6 H13 O10 P
BIRSGZKFKXLSJQ-SQOUGZDYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
6PGKi: 43000 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 82.695α = 90.00
b = 115.272β = 90.00
c = 271.841γ = 90.00
Software Package:
Software NamePurpose
XTALVIEWrefinement
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-02-09
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance