The Enzyme Database

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EC 3.2.1.197     
Accepted name: β-1,2-mannosidase
Reaction: β-D-mannopyranosyl-(1→2)-β-D-mannopyranosyl-(1→2)-D-mannopyranose + H2O = β-D-mannopyranosyl-(1→2)-D-mannopyranose + α-D-mannopyranose
Systematic name: β-1,2-D-mannoside mannohydrolase
Comments: The enzyme, characterized from multiple bacterial species, catalyses the hydrolysis of terminal, non-reducing D-mannose residues from β-1,2-mannotriose and β-1,2-mannobiose. The mechanism involves anomeric inversion, resulting in the release of α-D-mannopyranose. Activity with β-1,2-mannotriose or higher oligosaccharides is higher than that with β-1,2-mannobiose.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Cuskin, F., Basle, A., Ladeveze, S., Day, A.M., Gilbert, H.J., Davies, G.J., Potocki-Veronese, G. and Lowe, E.C. The GH130 family of mannoside phosphorylases contains glycoside hydrolases that target β-1,2-mannosidic linkages in Candida mannan. J. Biol. Chem. 290 (2015) 25023–25033. [PMID: 26286752]
2.  Nihira, T., Chiku, K., Suzuki, E., Nishimoto, M., Fushinobu, S., Kitaoka, M., Ohtsubo, K. and Nakai, H. An inverting β-1,2-mannosidase belonging to glycoside hydrolase family 130 from Dyadobacter fermentans. FEBS Lett. 589 (2015) 3604–3610. [PMID: 26476324]
[EC 3.2.1.197 created 2016]
 
 


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