Galactan 1,3-beta-galactosidase

Identifiers

Databases

PDB structures

Galactan 1,3-beta-galactosidase (EC 3.2.1.145, galactan (1->3)-beta-D-galactosidase) is an enzyme with systematic name galactan 3-beta-D-galactosidase.^[1]^[2] This enzyme catalyses the following chemical reaction

Hydrolysis of terminal, non-reducing beta-D-galactose residues in (1->3)-beta-D-galactopyranans

This enzyme removes not only free galactose, but also 6-glycosylated residues.

References

↑ Tsumuraya, Y, Mochizuki, N (1990). ", 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. PMID 2158993.
↑ Pellerin, P.; Brillouet, J.M. (1994). "Purification and properties of an exo-(1→3)-β-D-galactanase from Aspergillus niger". Carbohydr. Res. 264: 281–291. doi:10.1016/s0008-6215(05)80012-6. PMID 7805066.

Hydrolase: sugar hydrolases (EC 3.2)

Disaccharidase	Sucrase/Sucrase-isomaltase/Invertase Maltase Trehalase Lactase

Glucosidases	Cellulase Alpha-glucosidase Acid Neutral AB Neutral C Beta-glucosidase cytosolic Debranching enzyme

Other	Amylase Alpha-amylase Chitinase Lysozyme Neuraminidase NEU1 NEU2 NEU3 NEU4 Bacterial neuraminidase Viral neuraminidase Galactosidases Alpha Beta alpha-Mannosidase Glucuronidase Hyaluronidase Pullulanase Glucosylceramidase lysosomal non-lysosomal Galactosylceramidase Alpha-N-acetylgalactosaminidase NAGA Alpha-N-acetylglucosaminidase Fucosidase Hexosaminidase HEXA HEXB Iduronidase Maltase-glucoamylase Heparanase HPSE2

3.2.2: Hydrolysing
N-Glycosyl compounds

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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