Inulosucrase

In enzymology, an inulosucrase (EC 2.4.1.9) is an enzyme that catalyzes the chemical reaction

sucrose + (2,1-beta-D-fructosyl)_n ${\displaystyle \rightleftharpoons }$ glucose + (2,1-beta-D-fructosyl)_n+1

inulosucrase
Identifiers
EC no.	2.4.1.9
CAS no.	9030-16-4
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 sucrose and (2,1-beta-D-fructosyl)_n, whereas its two products are glucose and (2,1-beta-D-fructosyl)_n+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is sucrose:2,1-beta-D-fructan 1-beta-D-fructosyltransferase. This enzyme is also called sucrose 1-fructosyltransferase.