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Literature summary for 2.4.1.184 extracted from

  • Heemskerk, J.W.M.; Jacobs, F.H.H.; Scheijen, M.A.M.; Helsper, J.P.F.G.; Wintermans, J.F.G.M.
    Characterization of galactosyltransferases in spinach chloroplast envelopes (1987), Biochim. Biophys. Acta, 918, 189-203.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
NH4+ 50 mM, 5fold stimulation Spinacia oleracea

Inhibitors

Inhibitors Comment Organism Structure
CdCl2 2 mM, 50% inhibition Spinacia oleracea
N-ethylmaleimide
-
Spinacia oleracea
p-hydroxymercuribenzoate
-
Spinacia oleracea
UDP 8 mM, 50% inhibition Spinacia oleracea
UMP 10 mM, 50% inhibition Spinacia oleracea
Zn2+ 1 mM, 75% inhibition Spinacia oleracea

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast envelope envelope Spinacia oleracea 9941
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ 10 mM, 23fold stimulation Spinacia oleracea
Ca2+ 10 mM, 23fold stimulation Spinacia oleracea
Co2+ 10 mM, 3fold simulation Spinacia oleracea
Fe2+ 10 mM, 6fold simulation Spinacia oleracea
K+ 50 mM, 5fold stimulation Spinacia oleracea
Mg2+ 10 mM, 20fold stimulation Spinacia oleracea
Mn2+ 10 mM, 23fold stimulation Spinacia oleracea

Organism

Organism UniProt Comment Textmining
Spinacia oleracea
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1,2-diacyl-3-O-(beta-D-galactosyl)-sn-glycerol + 1,2-diacyl-3-O-(beta-D-galactosyl)-sn-glycerol digalactosyldiacylglycerol synthesis proceeds most rapidly by galactosyl transfer to hexaene species of monogalactosyldiacylglycerol Spinacia oleracea 1,2-diacyl-3-O-[alpha-D-galactosyl-(1->6)-beta-D-galactosyl]-sn-glycerol + 1,2-diacyl-sn-glycerol by further transfer of galactosyl residues to the digalactosyldiacylglycerol, trigalactosyldiacylglycerol and tetragalactosyldiacylglycerol are also formed ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Spinacia oleracea