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ENZYME entry: EC 3.2.1.213

Accepted Name
Galactan exo-1,6-beta-galactobiohydrolase (non-reducing end).
Alternative Name(s)
Exo-beta-1,6-galactobiohydrolase.
Reaction catalysed
Hydrolysis of (1->6)-beta-D-galactosidic linkages in arabinogalactan proteins and (1->3):(1->6)-beta-galactans to yield (1->6)-beta-galactobiose as the final product
Comment(s)
  • The enzyme, characterized from the bacterium Bifidobacterium longum, specifically hydrolyzes (1->6)-beta-galactobiose from the non- reducing terminal of (1->6)-beta-D-galactooligosaccharides with a degree of polymerization (DP) of 3 or higher, using an exo mode of action.
  • The enzyme cannot hydrolyze alpha-L-arabinofuranosylated (1->6)-beta- galactans (as found in arabinogalactans) and does not act on (1->3)- beta-D- or (1->4)-beta-D-galactans.
  • Cf. EC 3.2.1.164.
Cross-references
BRENDA3.2.1.213
EC2PDB3.2.1.213
ExplorEnz3.2.1.213
PRIAM enzyme-specific profiles3.2.1.213
KEGG Ligand Database for Enzyme Nomenclature3.2.1.213
IUBMB Enzyme Nomenclature3.2.1.213
IntEnz3.2.1.213
MEDLINEFind literature relating to 3.2.1.213
MetaCyc3.2.1.213

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