Reaction: sucrose + α-D-glucosyl-(1→2)-[(2→6)-β-D-fructosyl]n = D-glucose + α-D-glucosyl-(1→2)-[(2→6)-β-D-fructosyl]n+1
For diagram of reaction, click here.
Other name(s): sucrose 6-fructosyltransferase; β-2,6-fructosyltransferase; β-2,6-fructan:D-glucose 1-fructosyltransferase; sucrose:2,6-β-D-fructan 6-β-D-fructosyltransferase; sucrose:(2→6)-β-D-fructan 6-β-D-fructosyltransferase
Systematic name: sucrose:α-D-glucosyl-(1→2)-(2→6)-β-D-fructan 6-β-D-fructosyltransferase
Comments: Some other sugars can act as D-fructosyl acceptors.
Links to other databases: BRENDA, EXPASY, GTD, KEGG, Metacyc, PDB, CAS registry number: 9030-17-5
References:
1. Hehre, E.J. Enzymic synthesis of polysaccharides: a biological type of polymerization. Adv. Enzymol. Relat. Subj. Biochem. 11 (1951) 297-337.
2. Hestrin, S., Feingold, D.S. and Avigad, G. The mechanism of polysaccharide production from sucrose. 3. Donor-acceptor specificity of levansucrase from Aerobacter levanicum. Biochem. J. 64 (1956) 340-351. [PMID: 13363847]
3. Reese, E.T. and Avigad, G. Purification of levansucrase by precipitation with levan. Biochim. Biophys. Acta 113 (1966) 79-83. [PMID: 5940635]
4. Meng, G. and Futterer, K. Structural framework of fructosyl transfer in Bacillus subtilis levansucrase. Nat. Struct. Biol. 10 (2003) 935–941. [PMID: 14517548]