CATH Classification

Domain Context

CATH Clusters

Superfamily Divalent-metal-dependent TIM barrel enzymes
Functional Family Xylose isomerase

Enzyme Information

5.3.1.5
Xylose isomerase.
based on mapping to UniProt P15587
D-xylopyranose = D-xylulose.
-!- The enzyme catalyzes the interconversion of aldose and ketose sugars with broad substrate specificity. -!- The enzyme binds the closed form of its sugar substrate (in the case of glucose, only the alpha anomer) and catalyzes ring opening to generate a form of open-chain conformation that is coordinated to one of the metal sites. -!- Isomerization proceeds via a hydride-shift mechanism.

UniProtKB Entries (1)

P15587
XYLA_STROL
Streptomyces olivochromogenes
Xylose isomerase

PDB Structure

PDB 1XYM
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Role of the divalent metal ion in sugar binding, ring opening, and isomerization by D-xylose isomerase: replacement of a catalytic metal by an amino acid.
Allen, K.N., Lavie, A., Glasfeld, A., Tanada, T.N., Gerrity, D.P., Carlson, S.C., Farber, G.K., Petsko, G.A., Ringe, D.
Biochemistry