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Information on EC 3.2.1.187 - (Ara-f)3-Hyp beta-L-arabinobiosidase

for references in articles please use BRENDA:EC3.2.1.187
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IUBMB Comments
The enzyme, which was identified in the bacterium Bifidobacterium longum JCM1217, is specific for (Ara-f)3-Hyp, a sugar chain found in hydroxyproline-rich glyoproteins such as extensin and lectin. The enzyme was not able to accept (Ara-f)2-Hyp or (Ara-f)4-Hyp as substrates. In the presence of 1-alkanols, the enzyme demonstrates transglycosylation activity, retaining the anomeric configuration of the arabinofuranose residue.
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Word Map
The expected taxonomic range for this enzyme is: Bifidobacterium longum
Synonyms
beta-L-arabinobiosidase, beta-L-arabinofuranosidase, hypBA2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
4-O-(beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranosyl)-(2S,4S)-4-hydroxyproline + H2O = 4-O-(beta-L-arabinofuranosyl)-(2S,4S)-4-hydroxyproline + beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranose
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