IUBMB Enzyme Nomenclature

EC 3.2.1.185

Accepted name: non-reducing end β-L-arabinofuranosidase

Reaction: β-L-arabinofuranosyl-(1→2)-β-L-arabinofuranose + H2O = 2 β-L-arabinofuranose

Other name(s): HypBA1

Systematic name: β-L-arabinofuranoside non-reducing end β-L-arabinofuranosidase

Comments: The enzyme, which was identified in the bacterium Bifidobacterium longum JCM1217, removes the β-L-arabinofuranose residue from the non-reducing end of multiple substrates, including β-L-arabinofuranosyl-hydroxyproline (Ara-Hyp), Ara2-Hyp, Ara3-Hyp, and β-L-arabinofuranosyl-(1→2)-1-O-methyl-β-L-arabinofuranose. In the presence of 1-alkanols, the enzyme demonstrates transglycosylation activity, retaining the anomeric configuration of the arabinofuranose residue. cf. EC 3.2.1.55, non-reducing end α-L-arabinofuranosidase

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:

References:

1. Fujita, K., Takashi, Y., Obuchi, E., Kitahara, K. and Suganuma, T. Characterization of a novel β-L-arabinofuranosidase in Bifidobacterium longum: functional elucidation of a DUF1680 family member. J. Biol. Chem. 286 (2011) 38079-38085. [PMID: 21914802]

[EC 3.2.1.185 created 2013]


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