KEGG   ENZYME: 3.2.1.145Help
Entry
EC 3.2.1.145                Enzyme                                 

Name
galactan 1,3-beta-galactosidase;
galactan (1->3)-beta-D-galactosidase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
galactan 3-beta-D-galactosidase
Reaction(IUBMB)
Hydrolysis of terminal, non-reducing beta-D-galactose residues in (1->3)-beta-D-galactopyranans
Comment
This enzyme removes not only free galactose, but also 6-glycosylated residues, e.g., (1->6)-beta-D-galactobiose, and galactose bearing oligosaccharide chains on O-6. Hence, it releases branches from [arabino-galacto-(1->6)]-(1->3)-beta-D-galactans.
History
EC 3.2.1.145 created 2001
Reference
1  [PMID:2158993]
  Authors
Tsumuraya Y, Mochizuki N, Hashimoto Y, Kovac P.
  Title
Purification of an exo-beta-(1----3)-D-galactanase of Irpex lacteus (Polyporus tulipiferae) and its action on arabinogalactan-proteins.
  Journal
J Biol Chem 265:7207-15 (1990)
Reference
2  [PMID:7805066]
  Authors
Pellerin P, Brillouet JM.
  Title
Purification and properties of an exo-(1-->3)-beta-D-galactanase from Aspergillus niger.
  Journal
Carbohydr Res 264:281-91 (1994)
DOI:10.1016/S0008-6215(05)80012-6
Other DBs
ExplorEnz - The Enzyme Database: 3.2.1.145
IUBMB Enzyme Nomenclature: 3.2.1.145
ExPASy - ENZYME nomenclature database: 3.2.1.145
BRENDA, the Enzyme Database: 3.2.1.145
CAS: 161515-48-6

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