1DXI

STRUCTURE DETERMINATION OF GLUCOSE ISOMERASE FROM STREPTOMYCES MURINUS AT 2.6 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb1DXI/pdb

• Classification: ISOMERASE(INTRAMOLECULAR OXIDOREDUCTASE)
• Organism(s): Streptomyces murinus
• Mutation(s): No 


• Deposited: 1993-09-30 Released: 1994-01-31 
• Deposition Author(s): Rasmussen, H., La Cour, T., Nyborg, J., Schulein, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Observed: 0.214 

Literature

Structure determination of glucose isomerase from Streptomyces murinus at 2.6 A resolution.

Rasmussen, H., la Cour, T., Nyborg, J., Schulein, M.

(1994) Acta Crystallogr D Biol Crystallogr 50: 124-131

• PubMed: 15299450 
• DOI: https://doi.org/10.1107/S0907444993009540
• Primary Citation of Related Structures:  
  1DXI


• PubMed Abstract: 
  

  Glucose isomerase from Streptomyces murinus has been crystallized in space group P4(1)2(1)2, cell dimensions a = b = 137.65 and c = 132.20 A. One dimer of the tetrametric molecule is found per asymmetric unit. An initial structure solution was obtained by the molecular replacement method. The crystallographic refinement was performed using molecular dynamics techniques with X-ray restraints. The final crystallographic R value is 21.4% at 2.6 A resolution including 3023 non-H atoms, two metal ions and two water molecules per monomer.

---

Organizational Affiliation: 

Department of Organic Chemistry, Royal Danish School of Pharmacy, Copenhagen, Denmark.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 85.74 kDa 
• Atom Count: 6,054 
• Modelled Residue Count: 776 
• Deposited Residue Count: 776 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
D-XYLOSE ISOMERASE	A, B	388	Streptomyces murinus	Mutation(s): 0  EC: 5.3.1.5
UniProt
Find proteins for P37031 (Streptomyces murinus) Explore P37031  Go to UniProtKB:  P37031

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A], D [auth A], E [auth B], F [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.60 Å
• R-Value Observed: 0.214 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 137.65	α = 90
b = 137.65	β = 90
c = 132.2	γ = 90

Software Package:

Software Name	Purpose
PROLSQ	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1994-01-31 
Deposition Author(s): Rasmussen, H., La Cour, T., Nyborg, J., Schulein, M.

Revision History  

• Version 1.0: 1994-01-31
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references, Derived calculations, Other