IUBMB Enzyme Nomenclature


Accepted name: xylan 1,4-β-xylosidase

Reaction: Hydrolysis of (1→4)-β-D-xylans, to remove successive D-xylose residues from the non-reducing termini

Other name(s): xylobiase; β-xylosidase; exo-1,4-β-xylosidase; β-D-xylopyranosidase; β-xylosidase; β-xylosidase; exo-1,4-xylosidase; exo-1,4-β-D-xylosidase; 1,4-β-D-xylan xylohydrolase

Systematic name: 4-β-D-xylan xylohydrolase

Comments: Also hydrolyses xylobiose. Some other exoglycosidase activities have been found associated with this enzyme in sheep liver.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9025-53-0


1. Chinchetru, M.A., Cabezas, J.A. and Calvo, P. Purification and characterization of a broad specificity β-glucosidase from sheep liver. Int. J. Biochem. 21 (1989) 469-476. [PMID: 2503402]

2. Howard, B.H., Jones, G. and Purdom, M.R. The pentosanases of some rumen bacteria. Biochem. J. 74 (1960) 173-180.

[EC created 1965]

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