| 英文名 |
(Ara-f)3-Hyp beta-L-arabinobiosidase |
| Example Structure |
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| 别名 |
beta-L-arabinobiosidase, beta-L-arabinofuranosidase, hypBA2 |
| EC Number |
3.2.1.187 |
| CAS编号 |
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| 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. |
| Cofactor |
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| History |
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| Reactions |
4-O-(beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranosyl-(1->2)-beta- L-arabinofuranosyl)-(2S,4S)-4-hydroxyproline + H(2)O = 4-O-(beta-L- arabinofuranosyl)-(2S,4S)-4-hydroxyproline + beta-L-arabinofuranosyl- (1->2)-beta-L-arabinofuranose. |
