The Enzyme Database

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EC 3.2.1.28     
Accepted name: α,α-trehalase
Reaction: α,α-trehalose + H2O = β-D-glucose + α-D-glucose
Other name(s): trehalase
Systematic name: α,α-trehalose glucohydrolase
Comments: The enzyme is an anomer-inverting glucosidase that catalyses the hydrolysis of the α-glucosidic O-linkage of α,α-trehalose, releasing initially equimolar amounts of α- and β-D-glucose. It is widely distributed in microorganisms, plants, invertebrates and vertebrates.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9025-52-9
References:
1.  Myrbäck, K. and Örtenblad, B. Trehalose und Hefe. II. Trehalasewirkung von Hefepräparaten. Biochem. Z. 291 (1937) 61–69.
2.  Kalf, G.F. and Rieder, S.V. The preparation and properties of trehalase. J. Biol. Chem. 230 (1958) 691–698. [PMID: 13525386]
3.  Hehre, E.J., Sawai, T., Brewer, C.F., Nakano, M. and Kanda, T. Trehalase: stereocomplementary hydrolytic and glucosyl transfer reactions with α- and β-D-glucosyl fluoride. Biochemistry 21 (1982) 3090–3097. [PMID: 7104311]
4.  Mori, H., Lee, J.H., Okuyama, M., Nishimoto, M., Ohguchi, M., Kim, D., Kimura, A. and Chiba, S. Catalytic reaction mechanism based on α-secondary deuterium isotope effects in hydrolysis of trehalose by European honeybee trehalase. Biosci. Biotechnol. Biochem. 73 (2009) 2466–2473. [DOI] [PMID: 19897915]
[EC 3.2.1.28 created 1961, modified 2012]
 
 


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