3.2.1.187: (Ara-f)3-Hyp beta-L-arabinobiosidase
This is an abbreviated version!
For detailed information about (Ara-f)3-Hyp beta-L-arabinobiosidase, go to the full flat file.
Word Map on EC 3.2.1.187
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3.2.1.187
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glycoside
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bifidobacterium
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longum
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disaccharide
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1-alkanols
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transglycosylates
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hydrolases
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anomeric
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l-arabinose
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xanthomonas
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hydroxyproline-rich
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lectin
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actinomycetes
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azide
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extensin
- 3.2.1.187
- glycoside
- bifidobacterium
- longum
- disaccharide
-
1-alkanols
-
transglycosylates
- hydrolases
-
anomeric
- l-arabinose
- xanthomonas
-
hydroxyproline-rich
- lectin
- actinomycetes
- azide
-
extensin
Reaction
Synonyms
beta-L-arabinobiosidase, beta-L-arabinofuranosidase, GH 121 beta-L-arabinofuranosidase, GH121 beta-L-arabinobiosidase, hypBA2, xcv2729, XeHypBA2
ECTree
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Systematic Name
Systematic Name on EC 3.2.1.187 - (Ara-f)3-Hyp beta-L-arabinobiosidase
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4-O-(beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranosyl)-(2S,4S)-4-hydroxyproline beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranose hydrolase
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.