- Source: Abequosyltransferase
In enzymology, an abequosyltransferase (EC 2.4.1.60) is an enzyme that catalyzes the chemical reaction
CDP-abequose + D-mannosyl-L-rhamnosyl-D-galactose-1-diphospholipid
⇌
{\displaystyle \rightleftharpoons }
CDP + D-abequosyl-D-mannosyl-rhamnosyl-D-galactose-1-diphospholipid
Thus, the two substrates of this enzyme are CDP-abequose and D-mannosyl-L-rhamnosyl-D-galactose-1-diphospholipid, whereas its two products are CDP and D-abequosyl-D-mannosyl-rhamnosyl-D-galactose-1-diphospholipid.
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is CDP-abequose:D-mannosyl-L-rhamnosyl-D-galactose-1-diphospholipid D-abequosyltransferase. This enzyme is also called trihexose diphospholipid abequosyltransferase.
References
Osborn MJ, Weiner IM (1968). "Biosynthesis of a bacterial lipopolysaccharide. VI. Mechanism of incorporation of abequose into the O-antigen of Salmonella typhimurium". J. Biol. Chem. 243 (10): 2631–9. PMID 4297268.
