Fructan beta-(2,1)-fructosidase

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Fructan beta-(2,1)-fructosidase
EC number3.2.1.153
CAS number1000593-08-7
IntEnzIntEnz view
ExPASyNiceZyme view
MetaCycmetabolic pathway
PDB structuresRCSB PDB PDBe PDBsum

Fructan beta-(2,1)-fructosidase (EC, beta-(2-1)-D-fructan fructohydrolase, beta-(2-1)fructan exohydrolase, inulinase, 1-FEH II, 1-fructan exohydrolase, 1-FEH w1, 1-FEH w2, beta-(2-1)-linkage-specific fructan-beta-fructosidase, beta-(2,1)-D-fructan fructohydrolase) is an enzyme with systematic name beta-(2->1)-D-fructan fructohydrolase.[1][2] This enzyme catalyses the following chemical reaction

Hydrolysis of terminal, non-reducing (2->1)-linked beta-D-fructofuranose residues in fructans

The best substrates are the inulin-type fructans.


  1. ^ De Roover J, Van Laere A, De Winter M, Timmermans JW, Van den Ende W (1999). "Purification and properties of a second fructan exohydrolase from the roots of Cichorium intybus". Physiol. Plant. 106: 28–34. doi:10.1034/j.1399-3054.1999.106104.x.
  2. ^ Van Den Ende W, Clerens S, Vergauwen R, Van Riet L, Van Laere A, Yoshida M, Kawakami A (February 2003). "Fructan 1-exohydrolases. beta-(2,1)-trimmers during graminan biosynthesis in stems of wheat? Purification, characterization, mass mapping, and cloning of two fructan 1-exohydrolase isoforms". Plant Physiology. 131 (2): 621–31. doi:10.1104/pp.015305. PMC 166838. PMID 12586886.

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