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Information on EC 3.2.1.154 - fructan beta-(2,6)-fructosidase

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IUBMB Comments
Possesses one of the activities of EC 3.2.1.80, fructan beta-fructosidase. While the best substrates are the levan-type fructans such as 6-kestotriose [beta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl alpha-D-glucopyranoside] and 6,6-kestotetraose [beta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl alpha-D-glucopyranoside], some (but not all) inulin-type fructans can also be hydrolysed, but more slowly [cf. EC 3.2.1.153, fructan beta-(2,1)-fructosidase]. Sucrose, while being a very poor substrate, can substantially inhibit enzyme activity in some cases.
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
fructan 6-exohydrolases, 6-fructan exohydrolase, suc:fructan 6-fructosyltransferase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
Hydrolysis of terminal, non-reducing (2->6)-linked beta-D-fructofuranose residues in fructans
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