EC 3.2.1.145 - Galactan 1,3-β-galactosidase

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IntEnz Enzyme Nomenclature
EC 3.2.1.145

Names

Accepted name:
galactan 1,3-β-galactosidase
Other name:
galactan (1→3)-β-D-galactosidase
Systematic name:
galactan 3-β-D-galactosidase

Reaction

Comments:

This enzyme removes not only free galactose, but also 6-glycosylated residues, e.g., (1→6)-β-D-galactobiose, and galactose bearing oligosaccharide chains on O-6. Hence, it releases branches from [arabino-galacto-(1→6)]-(1→3)-β-D-galactans.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0033943

References

  1. Tsumuraya, Y., Mochizuki, N., Hashimoto Y. and Kovac, P.
    Purification of exo-(1→3)-D-galactanase of Irpex lacteus (Polyporus tulipiferae) and its action on arabinogalactan-proteins.
    J. Biol. Chem. 265 : 7207-7215 (1990). [PMID: 2158993]
  2. Pellerin, P. and Brillouet, J.M.
    Purification and properties of an exo-(1→3)-β-D-galactanase from Aspergillus niger.
    Carbohydr. Res. 264 : 281-291 (1994). [PMID: 7805066]

[EC 3.2.1.145 created 2001]