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ENZYME

ENZYME entry: EC 2.4.1.46

Accepted Name
monogalactosyldiacylglycerol synthase
Alternative Name(s)
1,2-diacylglycerol 3-beta-galactosyltransferase
1beta-MGDG
MGDG synthase
UDPgalactose:1,2-diacylglycerol 3-beta-D-galactosyltransferase
UDP-galactose:diacylglycerol galactosyltransferase
UDP galactose-1,2-diacylglycerol galactosyltransferase
UDP-galactose-diacylglyceride galactosyltransferase
uridine diphosphogalactose-1,2-diacylglycerol galactosyltransferase
Reaction catalysed
a 1,2-diacyl-sn-glycerol + UDP-alpha-D-galactose = a 1,2-diacyl-3-O-(beta-D-galactosyl)-sn-glycerol + H(+) + UDP
Comment(s)
  • This enzyme adds only one galactosyl group to the diacylglycerol; EC 2.4.1.241 adds a galactosyl group to the product of the above reaction.
  • There are three isoforms in Arabidopsis that can be divided into two types, A-type (MGD1) and B-type (MGD2 and MGD3).
  • MGD1 is the isoform responsible for the bulk of monogalactosyldiacylglycerol (MGDG) synthesis in Arabidopsis.
Cross-references
BRENDA2.4.1.46
EC2PDB2.4.1.46
ExplorEnz2.4.1.46
PRIAM enzyme-specific profiles2.4.1.46
KEGG Ligand Database for Enzyme Nomenclature2.4.1.46
IUBMB Enzyme Nomenclature2.4.1.46
IntEnz2.4.1.46
MEDLINEFind literature relating to 2.4.1.46
MetaCyc2.4.1.46
Rhea expert-curated reactions2.4.1.46
UniProtKB/Swiss-Prot
O81770, MGDG1_ARATHQ69QJ7, MGDG1_ORYSJO82730, MGDG2_ARATH
A2YTP9, MGDG2_ORYSIQ6UTZ2, MGDG2_ORYSJQ9SI93, MGDG3_ARATH
Q0DWQ1, MGDG3_ORYSJP93115, MGDG_CUCSAQ9FZL4, MGDG_SOYBN
Q9SM44, MGDG_SPIOLQ9FZL3, MGDG_TOBAC

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