The Enzyme Database

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EC 2.4.1.373     
Accepted name: α-(1→2) branching sucrase
Reaction: sucrose + a (1→6)-α-D-glucan = D-fructose + a (1→6)-α-D-glucan containing a (1→2)-α-D-glucose branch
Systematic name: sucrose:(1→6)-α-D-glucan 2-α-D-glucosyl-transferase
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 introduces α(1→2) branches into (1→6)-α-D-glucans.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Fabre, E., Bozonnet, S., Arcache, A., Willemot, R.M., Vignon, M., Monsan, P. and Remaud-Simeon, M. Role of the two catalytic domains of DSR-E dextransucrase and their involvement in the formation of highly α-1,2 branched dextran. J. Bacteriol. 187 (2005) 296–303. [PMID: 15601714]
2.  Brison, Y., Laguerre, S., Lefoulon, F., Morel, S., Monties, N., Potocki-Veronese, G., Monsan, P. and Remaud-Simeon, M. Branching pattern of gluco-oligosaccharides and 1.5kDa dextran grafted by the α-1,2 branching sucrase GBD-CD2. Carbohydr. Polym. 94 (2013) 567–576. [PMID: 23544576]
3.  Passerini, D., Vuillemin, M., Ufarte, L., Morel, S., Loux, V., Fontagne-Faucher, C., Monsan, P., Remaud-Simeon, M. and Moulis, C. Inventory of the GH70 enzymes encoded by Leuconostoc citreum NRRL B-1299 - identification of three novel α-transglucosylases. FEBS J. 282 (2015) 2115–2130. [PMID: 25756290]
[EC 2.4.1.373 created 2019]
 
 


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