IUBMB Enzyme Nomenclature


Accepted name: difructose-anhydride synthase

Reaction: bis-D-fructose 2',1:2,1'-dianhydride + H2O = inulobiose

Other name(s): inulobiose hydrolase

Systematic name: bis-D-fructose 2',1:2,1'-dianhydride fructohydrolase

Comments: Produces difructose anhydride by the reverse reaction of partial hydrolysis, forming an α-fructosidic linkage.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 121479-55-8


1. Matsuyama, T. and Tanaka, K. On the enzyme of Aspergillus fumigatus producing difructose anhydride I from inulobiose. Agric. Biol. Chem. 53 (1989) 831-832.

2. Matsuyama, T., Tanaka, K., Mashiko, M. and Kanamoto, M. Enzymic formation of di-D-fructose 1,2'; 2,1' dianhydride from inulobiose by Aspergillus fumigatus. J. Biochem. (Tokyo) 92 (1982) 1325-1328. [PMID: 6757245]

[EC created 1992]

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