Dextransucrase

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In enzymology, a dextransucrase (EC 2.4.1.5) is an enzyme that catalyzes the chemical reaction

sucrose + (1,6-alpha-D-glucosyl)n $\rightleftharpoons$ D-fructose + (1,6-alpha-D-glucosyl)n⁺1

Thus, the two substrates of this enzyme are sucrose and (1,6-alpha-D-glucosyl)n, whereas its two products are D-fructose and (1,6-alpha-D-glucosyl)n+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is sucrose:1,6-alpha-D-glucan 6-alpha-D-glucosyltransferase. Other names in common use include sucrose 6-glucosyltransferase, SGE, CEP, and sucrose-1,6-alpha-glucan glucosyltransferase. This enzyme participates in starch and sucrose metabolism and two-component system - general.

[edit] References

IUBMB entry for 2.4.1.5
BRENDA references for 2.4.1.5 (Recommended.)
PubMed references for 2.4.1.5
PubMed Central references for 2.4.1.5
Google Scholar references for 2.4.1.5
BAILEY RW (1959). "Transglucosidase activity of rumen strains of Streptococcus bovis 2. Isolation and properties of dextransucrase". Biochem. J. 72: 42–9. PMID 13651133.
Bailey RW, Barker SA, Bourne EJ and Stacey M (Lond.). "Immunopolysaccharides. Part VI. The isolation and properties of the dextransucrase of Betacoccus arabinosaceous". J. Chem. Soc.: 3530–3536.
Hehre EJ (1951). "Enzymic synthesis of polysaccharides: a biological type of polymerization". Adv. Enzymol. Relat. Subj. Biochem. 11: 297–337. doi:10.1002/9780470122563.ch6.