Xylan 1,4-beta-xylosidase (, ''xylobiase'', ''beta-xylosidase'', ''exo-1,4-beta-xylosidase'', ''beta-D-xylopyranosidase'', ''exo-1,4-xylosidase'', ''exo-1,4-beta-D-xylosidase'', ''1,4-beta-D-xylan xylohydrolase'') is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. A ...
with
systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature.
A semisystematic name or semitrivial ...
''4-beta-D-xylan xylohydrolase''.
This enzyme
catalyses the following
chemical reaction
A chemical reaction is a process that leads to the IUPAC nomenclature for organic transformations, chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the pos ...
:
Hydrolysis
Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution reaction, substitution, elimination reaction, elimination, and solvation reactions in which water ...
of (1->4)-beta-D-xylans, to remove successive D-
xylose
Xylose ( grc, ξύλον, , "wood") is a sugar first isolated from wood, and named for it. Xylose is classified as a monosaccharide of the aldopentose type, which means that it contains five carbon atoms and includes an aldehyde functional gro ...
residues from the non-reducing termini
This enzyme also hydrolyses
xylobiose.
References
External links
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EC 3.2.1