| 别名 |
1-FEH, 1-FEH I, 1-FEH II, 1-FEH IIa, 1-FEH w1, 1-FEH w2, 1-FEHa, 1-FEHI, 1-fructan exohydrolase, 1-fructoexohydrolase, beta-(2-1) fructan exohydrolase, beta-(2-1)-D-fructan fructohydrolase, beta-(2-1)-linkage specific FEH, beta-(2-1)-linkage specific fructan-beta-fructosidase, beta-(2-1)-linkage-specific fructan-beta-fructosidase, FEH, fructan 1-exohydrolase, fructan 1-exohydrolase IIa, fructan 1-exohydrolase IIb, fructan 1-exohydrolase w1, fructan 1-exohydrolase w2, fructan exohydrolase, Lp1-FEHa, Wfh-sm3m |
| Comments |
Possesses one of the activities of EC?3.2.1.80, fructan ¦Â-fructosidase. While the best substrates are the inulin-type fructans, such as 1-kestose (¦Â-D-fructofuranosyl-(2¡ú1)-¦Â-D-fructofuranosyl ¦Á-D-glucopyranoside) and 1,1-nystose (¦Â-D-fructofuranosyl-(2¡ú1)-¦Â-D-fructofuranosyl-(2¡ú1)-¦Â-D-fructofuranosyl ¦Á-D-glucopyranoside), some (but not all) levan-type fructans can also be hydrolysed, but more slowly [see EC?3.2.1.154, fructan ¦Â-(2,6)-fructosidase]. Sucrose, while being a very poor substrate, can substantially inhibit enzyme activity in some cases. |
