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ENZYME

ENZYME entry: EC 3.2.1.164

PURL: https://purl.expasy.org/enzyme/EC/3.2.1.164
Accepted Name
galactan endo-1,6-beta-galactosidase
Alternative Name(s)
endo-1,6-beta-galactanase
endo-beta-(1->6)-galactanase
Reaction catalysed
Endohydrolysis of (1->6)-beta-D-galactosidic linkages in arabinogalactan proteins and (1->3):(1->6)-beta-galactans to yield galactose and beta-(1->6)-galactaobiose as the final products
Comment(s)
  • Specifically hydrolyzes 1,6-beta-D-galactooligosaccharides with a degree of polymerization (DP) higher than 3, and their acidic derivatives with 4-O-methylglucosyluronate or glucosyluronate groups at the non-reducing terminals.
  • 1,3-beta-D- and 1,4-beta-D-galactosyl residues cannot act as substrates.
  • Can also hydrolyze alpha-L-arabinofuranosidase-treated arabinogalactan protein (AGP) extracted from radish roots.
  • AGPs are thought to be involved in many physiological events, such as cell division, cell expansion and cell death.
Cross-references
BRENDA3.2.1.164
EC2PDB3.2.1.164
ExplorEnz3.2.1.164
KEGG Ligand Database for Enzyme Nomenclature3.2.1.164
IUBMB Enzyme Nomenclature3.2.1.164
MEDLINEFind literature relating to 3.2.1.164
MetaCyc3.2.1.164
Rhea expert-curated reactions3.2.1.164
UniProtKB/Swiss-Prot
Q76FP5, 6GAL_HYPRU

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