Fructan beta-(2,6)-fructosidase (, ''beta-(2-6)-fructan exohydrolase'', ''

levanase Levanase (, ''levan hydrolase'', ''2,6-β-D-fructan fructanohydrolase'') is an enzyme with systematic name ''(2→6)-β-D-fructan fructanohydrolase''. This enzyme catalyses the following chemical reaction : Random hydrolysis Hydrolysis (; ) ...

'', ''6-FEH'', ''beta-(2,6)-D-fructan fructohydrolase'') is an

enzyme An enzyme () is a protein that acts as a biological catalyst by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different mol ...

with

systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature. A semisystematic name or semitrivi ...

''(2->6)-beta-D-fructan fructohydrolase''. This enzyme catalyses the following

chemical reaction A chemical reaction is a process that leads to the chemistry, chemical transformation of one set of chemical substances to another. When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an Gibbs free energy, ...

Hydrolysis Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution reaction, substitution, elimination reaction, elimination, and solvation reactions in which water ...

of terminal, non-reducing (2->6)-linked beta-D-fructofuranose residues in

fructan A fructan is a polymer of fructose molecules. Fructans with a short chain length are known as fructooligosaccharides. Fructans can be found in over 12% of the angiosperms including both monocots and dicotyledon, dicots such as agave, artichokes, a ...

s The best substrates are the levan-type fructans such as 6-kestotriose eta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl alpha-D-glucopyranosideand 6,6-kestotetraose eta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl-(2->6)-beta-D-fructofuranosyl alpha-D-glucopyranoside

References

External links

* {{Portal bar, Biology, border=no EC 3.2.1