| EC |
3.2.1.145 |
| Accepted name: |
galactan 1,3-β-galactosidase |
| Reaction: |
Hydrolysis of terminal, non-reducing β-D-galactose residues in (1→3)-β-D-galactopyranans |
| Other name(s): |
galactan (1→3)-β-D-galactosidase |
| Systematic name: |
galactan 3-β-D-galactosidase |
| 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: |
BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 161515-48-6 |
| 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 (1990) 7207–7215. [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 (1994) 281–291. [DOI] [PMID: 7805066] |
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| [EC 3.2.1.145 created 2001] |
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