Sucrose:sucrose fructosyltransferase

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In enzymology, a sucrose:sucrose fructosyltransferase (EC is an enzyme that catalyzes the chemical reaction

2 sucrose D-glucose + beta-D-fructofuranosyl-(2->1)-beta-D-fructofuranosyl alpha-D-glucopyranoside

Hence, this enzyme has one substrate, sucrose, but 3 products: D-glucose, [[beta-D-fructofuranosyl-(2->1)-beta-D-fructofuranosyl]], and alpha-D-glucopyranoside.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is sucrose:sucrose 1'-beta-D-fructosyltransferase. Other names in common use include SST, sucrose:sucrose 1-fructosyltransferase, sucrose-sucrose 1-fructosyltransferase, sucrose 1F-fructosyltransferase, and sucrose:sucrose 1F-beta-D-fructosyltransferase.


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
  • PubMed Central references for
  • Google Scholar references for
  • Henry RJ and Darbyshire B (1980). "Sucrose:sucrose fructosyltransferase and fructan:fructan fructosyltransferase from Allium cepa". Phytochemistry. 19: 1017&ndash, 1020.
  • CJ, Boller T, Wiemken A (2000). "Cloning and functional analysis of sucrose:sucrose 1-fructosyltransferase from tall fescue". Plant. Physiol. 124: 1217&ndash, 28. PMID 11080298.

External links

The CAS registry number for this enzyme class is 73379-56-3.

Gene Ontology (GO) codes