The Enzyme Database

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EC 2.4.1.4     
Accepted name: amylosucrase
Reaction: sucrose + [(1→4)-α-D-glucosyl]n = D-fructose + [(1→4)-α-D-glucosyl]n+1
Other name(s): sucrose—glucan glucosyltransferase; sucrose-1,4-α-glucan glucosyltransferase; sucrose:1,4-α-D-glucan 4-α-D-glucosyltransferase
Systematic name: sucrose:(1→4)-α-D-glucan 4-α-D-glucosyltransferase
Comments: The glucansucrases transfer a D-glucosyl residue from sucrose to a glucan chain. They are classified based on the linkage by which they attach the transferred residue. In some cases, in which the enzyme forms more than one linkage type, classification relies on the relative proportion of the linkages that are generated. This enzyme extends the glucan chain by an α(1→4) linkage.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9032-11-5
References:
1.  Feingold, D.S., Avigad, G. and Hestrin, S. Enzymic synthesis and reactions of a sucrose isomer α-D-galactopyranosyl-β-D-fructofuranoside. J. Biol. Chem. 224 (1957) 295–307. [PMID: 13398406]
2.  Hehre, E.J. Enzymic synthesis of polysaccharides: a biological type of polymerization. Adv. Enzymol. Relat. Subj. Biochem. 11 (1951) 297–337. [PMID: 24540594]
3.  Hehre, E.J., Hamilton, D.M. and Carlson, A.S. Synthesis of a polysaccharide of the starch-glycogen class from sucrose by a cell-free, bacterial enzyme system (amylosucrase). J. Biol. Chem. 177 (1949) 267–279. [PMID: 18107430]
[EC 2.4.1.4 created 1961]
 
 


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