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Your query returned 1 entry. 
Printable version
| EC | 3.2.1.215 | ||||
| Accepted name: | arabinogalactan L-arabinofuranosyl-α-(1,3)-D-galactopyranoside arabinofuranosidase | ||||
| Reaction: | Hydrolysis of α-L-Araf-(1→3)-D-Galp bonds in side chains of the non-reducing termini of type II arabinogalactan attached to proteins. | ||||
| Glossary: | Araf = arabinofuranose Arap = arabinopyranose Galp = galactopyranose |
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| Other name(s): | 3-O-α-D-galactosyl-α-L-arabinofuranosidase; β-arabino-oligosaccharide 3-O-β-L-arabinopyranosyl-α-L-arabinofuranoside; type II arabinogalactan exo α-(1,3)-[α-D-galactosyl-(1→3)-L-arabinofuranose] hydrolase (non-reducing end); arabinogalactan exo α-(1,3)-α-D-galactosyl-(1→3)-L-arabinofuranosidase (non-reducing end) | ||||
| Systematic name: | type II arabinogalactan α-(1,3)-[α-L-arabinofuranosyl-(1→3)-D-galactopyranoside] hydrolase | ||||
| Comments: | The enzyme hydrolyses L-Araf-(1→3)-D-Galp bonds in different side chains of the non-reducing termini of arabinogalactan polysaccharides. The enzyme from the bacterium Bifidobacterium longum is particularly active with gum arabic arabinogalactan, a type II arabinogalactan produced by acacia trees. It acts on α-D-Galp-(1→3)-α-L-Araf-(1→3)-D-Galp side chains, releasing α-D-Galp-(1→3)-L-Araf disaccharides [1], and can also act (with much lower activity) on β-L-Arap-(1→3)-L-Araf-(1→3)-D-Galp side chains, releasing β-L-Arap-(1→3)-L-Araf disaccharides. The enzyme from Bifidobacterium catenulatum has wider specificity and can release longer oligosaccharides with the formula (β-L-Araf-(1→2)-)n-β-L-Arap-(1→3)-α-L-Araf (n = 0–3) [2]. | ||||
| Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||
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