LIPID MAPS® Gene/Proteome Database (LMPD)

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LMPD Record

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LMP010634

UniProt Annotations

Entry Information
Gene NameMonogalactosyldiacylglycerol synthase 3
Protein EntryMGDG3_ARATH
UniProt IDQ9SI93
SpeciesArabidopsis
Comments
Comment typeDescription
Alternative ProductsEvent=Alternative splicing; Named isoforms=2; Name=1; IsoId=Q9SI93-1; Sequence=Displayed; Name=2; IsoId=Q9SI93-2; Sequence=VSP_035389, VSP_035390; Note=Derived from EST data. No experimental confirmation available.;
Biophysicochemical PropertiespH dependence: Optimum pH is 7.0.;
Catalytic ActivityUDP-alpha-D-galactose + 1,2-diacyl-sn-glycerol = UDP + 3-beta-D-galactosyl-1,2-diacyl-sn-glycerol.
Developmental StageMostly expressed in early stages of development. {ECO:0000269|PubMed:11553816}.
FunctionInvolved in the synthesis of the major structural component of photosynthetic membranes and in the chloroplast envelope biogenesis. Can use both prokaryotic (18:1/16:0) or eukaryotic (18:2/18:2) 1,2-diacylglycerol species, but operates with some preference for the eukaryotic one. {ECO:0000269|PubMed:11553816}.
InductionInduced by phosphate deprivation. {ECO:0000269|PubMed:11553816, ECO:0000269|PubMed:14730084, ECO:0000269|PubMed:16762032}.
MiscellaneousAuxin activates expression during Pi starvation, whereas cytokinin represses it.
SimilarityBelongs to the glycosyltransferase 28 family. {ECO:0000305}.
Subcellular LocationPlastid, chloroplast outer membrane {ECO:0000305|PubMed:11553816}.
Tissue SpecificityExpressed mainly in roots. Detected in flowers, leaves, stems, siliques and pollen tubes. {ECO:0000269|PubMed:11553816, ECO:0000269|PubMed:14730084}.