2,1-fructan:2,1-fructan 1-fructosyltransferase

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In enzymology, a 2,1-fructan:2,1-fructan 1-fructosyltransferase (EC is an enzyme that catalyzes the chemical reaction

[beta-D-fructosyl-(2->1)-]m + [beta-D-fructosyl-(2->1)-]n [beta-D-fructosyl-(2->1)-]m-1 + [beta-D-fructosyl-(2->1)-]n+1

Thus, the two substrates of this enzyme are [[[beta-D-fructosyl-(2->1)-]m]] and [[[beta-D-fructosyl-(2->1)-]n]], whereas its two products are [[[beta-D-fructosyl-(2->1)-]m-1]] and [[[beta-D-fructosyl-(2->1)-]n+1]].

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 2,1-beta-D-fructan:2,1-beta-D-fructan 1-beta-D-fructosyltransferase. Other names in common use include 1,2-beta-D-fructan 1F-fructosyltransferase, fructan:fructan fructosyl transferase, FFT, 1,2-beta-fructan 1F-fructosyltransferase, 1,2-beta-D-fructan:1,2-beta-D-fructan, 1F-beta-D-fructosyltransferase, and fructan:fructan 1-fructosyl transferase.


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
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  • 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.
  • Vergauwen R, Van Laere A, Van den Ende W (2003). "Properties of fructan:fructan 1-fructosyltransferases from chicory and globe thistle, two Asteracean plants storing greatly different types of inulin". Plant. Physiol. 133: 391&ndash, 401. PMID 12970504.

External links

The CAS registry number for this enzyme class is 73379-55-2.

Gene Ontology (GO) codes