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: 2.50 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.3 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

  • DOI: 10.1021/bi991604m
  • Primary Citation of Related Structures:  
    1DQR

  • 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 in glycolysis ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PHOSPHOGLUCOSE ISOMERASEAB557Oryctolagus cuniculusMutation(s): 0 
Gene Names: GPI
EC: 5.3.1.9
Find proteins for Q9N1E2 (Oryctolagus cuniculus)
Explore Q9N1E2 
Go to UniProtKB:  Q9N1E2
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
6PG
Query on 6PG

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  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.211 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.695α = 90
b = 115.272β = 90
c = 271.841γ = 90
Software Package:
Software NamePurpose
CNSrefinement
XTALVIEWrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-02-09
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-07-24
    Changes: Data collection, Refinement description