Fructan beta-(2,1)-fructosidase explained

Fructan beta-(2,1)-fructosidase
Ec Number:	3.2.1.153
Cas Number:	1000593-08-7

Fructan beta-(2,1)-fructosidase (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.

Notes and References

1. Purification and properties of a second fructan exohydrolase from the roots of Cichorium intybus . De Roover J, Van Laere A, De Winter M, Timmermans JW, Van den Ende W . Physiol. Plant. . 1999 . 106 . 28–34 . 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 . 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 . February 2003 . 12586886 . 166838 . 10.1104/pp.015305 .