Any feedback?
Please rate this page
(enzyme.php)
(0/150)

BRENDA support

No. of entries

Information on EC 3.2.1.156 - oligosaccharide reducing-end xylanase

for references in articles please use BRENDA:EC3.2.1.156

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
IUBMB Comments

The enzyme, originally isolated from the bacterium Bacillus halodurans C-125, releases the xylose unit at the reducing end of oligosaccharides ending with the structure β-D-xylopyranosyl-(1→4)-β-D-xylopyranosyl-(1→4)-β-D-xylopyranose, leaving the new reducing end in the α configuration. It is specific for the β anomers of xylooligosaccharides whose degree of polymerization is equal to or greater than 3. The penultimate residue must be β-D-xylopyranose, but replacing either of the flanking residues with glucose merely slows the rate greatly.

The enzyme appears in viruses and cellular organisms

Synonyms
rex8a, reducing-end xylose-releasing exo-oligoxylanase, rxyn8, phxyl, reducing end xylose-releasing exo-oligoxylanase, oligosaccharide reducing-end xylanase, gh8 xylanase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranose + H2O = 2 beta-D-xylopyranosyl-(1-4)-alpha-D-xylopyranose
show the reaction diagram