PDBe 3kco


Room temperature neutron structure of D-Xylose Isomerase in complex with two Ni2+ cations and d12-D-glucose in the linear form (refined jointly with X-ray structure 3KBN)


Function and Biology Details

Reaction catalysed:
D-xylopyranose = D-xylulose. 
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
Xylose isomerase Chain: A
Molecule details ›
Chain: A
Length: 388 amino acids
Theoretical weight: 43.28 KDa
Source organism: Streptomyces rubiginosus
Expression system: Not provided
  • Canonical: P24300 (Residues: 1-388; Coverage: 100%)
Gene name: xylA
Sequence domains: Xylose isomerase-like TIM barrel
Structure domains: Divalent-metal-dependent TIM barrel enzymes

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Experimental Method: Neutron Diffraction, X-ray diffraction
Spacegroup: I222
Unit cell:
a: 94.007Å b: 99.669Å c: 102.862Å α: 90° β: 90° γ: 90°
R R work R free 0.273 0.273 0.294
Expression system: Not provided