Dextransucrase

dextransucrase
Identifiers
EC no.	2.4.1.5
CAS no.	9032-14-8
Databases
BRENDA	enzyme data
ExPASy	NiceZyme view
KEGG	enzyme entry
MetaCyc	metabolic pathway
Rhea	reactions
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

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.

References

• BAILEY RW (1959). "Transglucosidase activity of rumen strains of Streptococcus bovis. 2. Isolation and properties of dextransucrase". The Biochemical Journal. 72 (1): 42–9. doi:10.1042/bj0720042. PMC 1196878. PMID 13651133.
• Bailey RW, Barker SA, Bourne EJ, Stacey M (1957). "Immunopolysaccharides. Part VI. The isolation and properties of the dextransucrase of Betacoccus arabinosaceous". Journal of the Chemical Society. Lond.: 3530–3536. doi:10.1039/jr9570003530.
• Hehre EJ (1951). "Enzymic synthesis of polysaccharides: a biological type of polymerization". In Nord FF (ed.). Advances in Enzymology and Related Areas of Molecular Biology. Vol. 11. pp. 297–337. doi:10.1002/9780470122563.ch6. ISBN 9780470122563. PMID 24540594. {{cite book}}: ISBN / Date incompatibility (help)