Galactolipid galactosyltransferase

In enzymology, a galactolipid galactosyltransferase (EC number|2.4.1.184) is an enzyme that catalyzes the chemical reaction

:2 3-(beta-D-galactosyl)-1,2-diacyl-sn-glycerol $ightleftharpoons$ 3- [alpha-D-galactosyl-(1->6)-beta-D-galactosyl] -1,2-diacyl-sn- glycerol + 1,2-diacyl-sn-glycerol

Hence, this enzyme has one substrate, 3-(beta-D-galactosyl)-1,2-diacyl-sn-glycerol, but 3 products: [3- [alpha-D-galactosyl-(1->6)-beta-D-galactosyl] -1,2-diacyl-sn-] , glycerol, and 1,2-diacyl-sn-glycerol.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 3-(beta-D-galactosyl)-1,2-diacyl-sn-glycerol:mono-3-(beta-D-galactos yl)-1,2-diacyl-sn-glycerol beta-D-galactosyltransferase. Other names in common use include galactolipid-galactolipid galactosyltransferase, galactolipid:galactolipid galactosyltransferase, interlipid galactosyltransferase, GGGT, DGDG synthase (ambiguous), and digalactosyldiacylglycerol synthase (ambiguous). This enzyme participates in glycerolipid metabolism.

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|66676-74-2."

Gene Ontology (GO) codes