Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 64.05 kDa 
• Atom Count: 4578 
• Residue Count: 555 
• Unique protein chains: 1

1NUH

The crystal structure of human phosphoglucose isomerase complexed with 5-phosphoarabinonate

• DOI: 10.2210/pdb1NUH/pdb

• Classification: ISOMERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2003-01-31 Released: 2003-02-11 
• Deposition Author(s): Davies, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.51 Å
• R-Value Free: 0.268 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 

Literature

The structure of human phosphoglucose isomerase complexed with a transition-state analogue.

Davies, C., Muirhead, H., Chirgwin, J.

(2003) Acta Crystallogr D Biol Crystallogr 59: 1111-1113

• PubMed: 12777791 
• DOI: 10.1107/s0907444903007352
• Primary Citation of Related Structures:  
  1NUH


• PubMed Abstract: 
  

Phosphoglucose isomerase (PGI) is a workhorse enzyme of carbohydrate metabolism that interconverts glucose 6-phosphate and fructose 6-phosphate. Outside the cell, however, the protein appears to function as a cytokine. A crystal structure of human PGI bound with 5-phosphoarabinonate, a strong inhibitor that mimics the cis-enediol(ate) intermediate of the reaction, has been determined at 2.5 A resolution. The structure helps to confirm the assignment of Glu357 as the base catalyst in the isomerase reaction.

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Related Citations: 

• The Crystal Structure of Human Phosphoglucose Isomerase at 1.6 A Resolution: Implications for Catalytic Mechanism, Cytokine Activity and Haemolytic Anaemia
  Read, J., Pearce, J., Li, X., Muirhead, H., Chirgwin, J., Davies, C.
  (2001) J Mol Biol 309: 447

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
glucose phosphate isomerase	A	558	Homo sapiens	Mutation(s): 0  Gene Names: GPI EC: 5.3.1.9
Find proteins for P06744 (Homo sapiens) Explore P06744  Go to UniProtKB:  P06744
NIH Common Fund Data Resources
PHAROS  P06744 GTEx  ENSG00000105220

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PA5	A	5-PHOSPHOARABINONIC ACID C5 H11 O9 P HNECGPFIYSOYHF-JJYYJPOSSA-N
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.51 Å
• R-Value Free: 0.268 
• R-Value Work: 0.214 
• R-Value Observed: 0.217 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 94.4	α = 90
b = 94.4	β = 90
c = 137.1	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-01-31 
• Released Date: 2003-02-11 
Deposition Author(s): Davies, C.

Revision History 

• Version 1.0: 2003-02-11
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2018-01-24
  Changes: Database references