Difructose-anhydride synthase

In enzymology, a difructose-anhydride synthase (EC 3.2.1.134) is an enzyme that catalyzes the chemical reaction

bis-D-fructose 2',1:2,1'-dianhydride + H₂O ${\displaystyle \rightleftharpoons }$ inulobiose

difructose-anhydride synthase
Identifiers
EC no.	3.2.1.134
CAS no.	121479-55-8
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

Thus, the two substrates of this enzyme are bis-D-fructose 2',1:2,1'-dianhydride and H₂O, whereas its product is inulobiose.

This enzyme belongs to the family of hydrolases, specifically those glycosidases that hydrolyse O- and S-glycosyl compounds. The systematic name of this enzyme class is bis-D-fructose 2',1:2,1'-dianhydride fructohydrolase. This enzyme is also called inulobiose hydrolase.