show all | hide all No of entries

Information on EC - levan fructotransferase (DFA-IV-forming)

for references in articles please use BRENDA:EC4.2.2.16
Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.2 Acting on polysaccharides
       levan fructotransferase (DFA-IV-forming)
IUBMB Comments
This enzyme, like EC [inulin fructotransferase (DFA-I-forming)] and EC [inulin fructotransferase (DFA-III-forming)] eliminates the fructan chain from the terminal disaccharide leaving a difructose dianhydride. These enzymes have long been known as fructotransferases, so this is retained in the accepted name. Since the transfer is intramolecular, the reaction is an elimination and, hence, the enzyme is a lyase, belonging in EC 4.
Specify your search results
Select one or more organisms in this record: ?
Word Map
The enzyme appears in viruses and cellular organisms
2,6-beta-D-fructan D-fructosyl-D-fructosyltransferase (forming di-beta-D-fructofuranose 2,6':2',6-dianhydride), 2,6-etab-D-fructan D-fructosyl-D-fructosyltransferase (forming di-beta-D-fructofuranose 2,6':2',6-dianhydride), fructotransferase, levan, FTF, levan fructotransferase, LFT, LFTase, LftM, more
produces di-beta-D-fructofuranose 2,6':2',6-dianhydride (DFA IV) by successively eliminating the diminishing (2->6)-beta-D-fructan (levan) chain from the terminal D-fructosyl-D-fructosyl disaccharide
show the reaction diagram
Select items on the left to see more content.