The Enzyme Database

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Accepted name: gluconolactonase
Reaction: D-glucono-1,5-lactone + H2O = D-gluconate
For diagram of the mammalian ascorbic-acid biosynthesis pathway, click here
Other name(s): lactonase; aldonolactonase; glucono-δ-lactonase; gulonolactonase
Systematic name: D-glucono-1,5-lactone lactonohydrolase
Comments: Acts on a wide range of hexose-1,5-lactones. The hydrolysis of L-gulono-1,5-lactone was previously listed separately.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9012-73-1
1.  Brodie, A.F. and Lipmann, F. Identification of a gluconolactonase. J. Biol. Chem. 212 (1955) 677–685. [PMID: 14353869]
2.  Bublitz, C. and Lehninger, A.L. The role of aldonolactonase in the conversion of L-gulonate to L-ascorbate. Biochim. Biophys. Acta 47 (1961) 288–297.
3.  Suzuki, K., Kawada, M. and Shimazono, N. Soluble lactonase. Identity of lactonase I and aldonolactonase with gluconolactonase. J. Biochem. (Tokyo) 49 (1961) 448–449.
[EC created 1961 (EC created 1961, incorporated 1982)]

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