| 释义 |
- References
{{enzyme
| Name = Levan fructotransferase (DFA-IV-forming)
| EC_number = 4.2.2.16
| CAS_number =
| IUBMB_EC_number = 4/2/2/16
| GO_code =
| image =
| width =
| caption =
}}In enzymology, a levan fructotransferase (DFA-IV-forming) ({{EC number|4.2.2.16}}) is an enzyme that catalyzes the chemical reaction 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 This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on polysaccharides. The systematic name of this enzyme class is 2,6-beta-D-fructan lyase (di-beta-D-fructofuranose-2,6':2',6-dianhydride-forming). Other names in common use include 2,6-beta-D-fructan D-fructosyl-D-fructosyltransferase (forming, di-beta-D-fructofuranose 2,6':2',6-dianhydride), and levan fructotransferase. References- {{cite journal | vauthors = Song KB, Bae KS, Lee YB, Lee KY, Rhee SK | date = 2000 | title = Characteristics of levan fructotransferase from Arthrobacter ureafaciens K2032 and difructose anhydride IV formation from levan | journal = Enzyme and Microbial Technology | volume = 27 | pages = 212–218 | doi = 10.1016/S0141-0229(00)00135-6 | issue = 3–5 }}
- {{cite journal | author = Rhee SK | date = 2003 | title = Levan fructotransferase from Arthrobacter oxydans J17-21 catalyzes the formation of the di-D-fructose dianhydride IV from levan | journal = J. Agric. Food Chem. | volume = 51 | pages = 2632–6 | pmid = 12696949 | doi = 10.1021/jf026207o | last2 = Ryu | first2 = EJ | last3 = Park | first3 = BS | last4 = Song | first4 = KB | last5 = Kang | first5 = SA | last6 = Kim | first6 = CH | last7 = Uhm | first7 = TB | last8 = Park | first8 = YI | last9 = Rhee | first9 = SK | issue = 9 }}
- {{cite journal | vauthors = Saito K, Tomita F | date = 2000 | title = Difructose anhydrides: their mass-production and physiological functions | journal = Biosci. Biotechnol. Biochem. | volume = 64 | pages = 1321–7 | pmid = 10945246 | doi = 10.1271/bbb.64.1321 | issue = 7 }}
{{Carbon-oxygen lyases}}{{Enzymes}}{{Portal bar|Molecular and Cellular Biology|border=no}}{{4.2-enzyme-stub}} 2 : EC 4.2.2|Enzymes of unknown structure |