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 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 | ||||||||
| |||||||||
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.
References
- BHATIA IS, SATYANARAYANA MN, SRINIVASAN M (1955). "Transfructosidase from Agave vera cruz Mill". Biochem. J. 61 (1): 171–4. PMC 1215761. PMID 13260192.
- DEDONDER R (1952). "[The glucides of the Jerusalem artichoke. III. Synthesis of glucofructosanes in vitro by extracts of different organs of the artichoke.]". Bull. Soc. Chim. Biol. Paris. 34 (1–2): 171–82. PMID 14935737.
- EDELMAN J, BACON JS (1951). "Transfructosidation in extracts of the tubers of Helianthus tuberosus L". Biochem. J. 49 (4): 529–40. PMC 1197545. PMID 14886320.
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