Function and Biology

X-RAY CRYSTALLOGRAPHIC STRUCTURES OF D-XYLOSE ISOMERASE-SUBSTRATE COMPLEXES POSITION THE SUBSTRATE AND PROVIDE EVIDENCE FOR METAL MOVEMENT DURING CATALYSIS

Source organism: Streptomyces olivochromogenes
Biochemical function: metal ion binding
Biological process: D-xylose metabolic process
Cellular component: cytoplasm

EC 5.3.1.5: Xylose isomerase

Reaction catalysed:
Alpha-D-xylopyranose = alpha-D-xylufuranose
Systematic name:
Alpha-D-xylose aldose-ketose-isomerase
Alternative Name(s):
  • D-xylose isomerase
  • D-xylose ketoisomerase
  • D-xylose ketol-isomerase

Sequence family

Pfam Protein family (Pfam)
PF01261
Domain description: Xylose isomerase-like TIM barrel
Occurring in:
  1. Xylose isomerase
The deposited structure of PDB entry 1xyb contains 2 copies of Pfam domain PF01261 (Xylose isomerase-like TIM barrel) in Xylose isomerase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR001998
Domain description: Xylose isomerase
Occurring in:
  1. Xylose isomerase
IPR013022
Domain description: Xylose isomerase-like, TIM barrel domain
Occurring in:
  1. Xylose isomerase
IPR036237
Domain description: Xylose isomerase-like superfamily
Occurring in:
  1. Xylose isomerase
IPR013453
Domain description: Xylose isomerase, actinobacteria
Occurring in:
  1. Xylose isomerase

Structure domain

CATH CATH domain
3.20.20.150
Class: Alpha Beta
Architecture: Alpha-Beta Barrel
Topology: TIM Barrel
Homology: Divalent-metal-dependent TIM barrel enzymes
Occurring in:
  1. Xylose isomerase
The deposited structure of PDB entry 1xyb contains 2 copies of CATH domain 3.20.20.150 (TIM Barrel) in Xylose isomerase. Showing 1 copy in chain A.
SCOP SCOP annotation
51665
Class: Alpha and beta proteins (a/b)
Fold: TIM beta/alpha-barrel
Superfamily: Xylose isomerase-like
Occurring in:
  1. Xylose isomerase
The deposited structure of PDB entry 1xyb contains 2 copies of SCOP domain 51665 (Xylose isomerase) in Xylose isomerase. Showing 1 copy in chain A.