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ENZYME entry: EC

Accepted Name
Galactolipid galactosyltransferase.
Alternative Name(s)
DGDG synthase.
Digalactosyldiacylglycerol synthase.
Galactolipid-galactolipid galactosyltransferase.
Galactolipid:galactolipid galactosyltransferase.
Interlipid galactosyltransferase.
Reaction catalysed
2 3-(beta-D-galactosyl)-1,2-diacyl-sn-glycerol <=> 3-(alpha-D-galactosyl-(1->6)-beta-D-galactosyl)-1,2-diacyl-sn-glycerol + 1,2-diacyl-sn-glycerol
  • By further transfers of galactosyl residues to the digalactosyldiacylglycerol, trigalactosyldiacylglycerol and tetragalactosyldiacylglycerol are also formed.
  • Was originally thought to be the major enzyme involved in the production of digalactosyldiacylglycerol in plants as it masked the effect of the true enzyme (EC
  • Its activity is localized to chloroplast envelope membranes, but it does not contribute to net galactolipid synthesis in plants.
PRIAM enzyme-specific profiles2.4.1.184
KEGG Ligand Database for Enzyme Nomenclature2.4.1.184
IUBMB Enzyme Nomenclature2.4.1.184
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