title: Activation of protein kinase C by ganglioside GM3 in the presence of calcium and 12-O-tetradecanoylphorbol-13-acetate.
abstract: Ganglioside GM3 and 12-O-tetradecanoylphorbol-13-acetate activated protein kinase C as substitutes for phosphatidylserine and diacylglycerol. Hydrophobic gangliosides such as GM4 and GM3 were rather more potent activators of protein kinase C than hydrophilic ones such as GD1a and GT1b. Active tumor promoters such as teleocidin, mezerein, phorbol 12,13-acetate and phorbol 12,13-dibenzoate also activated protein kinase C, but not inactive tumor promoters such as phorbol and 4-alpha-phorbol 12,13-didecanoate.
mesh_terms: D000818:Animals; D001921:Brain / Q000201:enzymology; D002118:Calcium / Q000494:pharmacology*; D004789:Enzyme Activation; D005679:G(M3) Ganglioside / Q000494:pharmacology*; D005732:Gangliosides / Q000494:pharmacology*; D007700:Kinetics; D010704:Phorbols / Q000494:pharmacology*; D011493:Protein Kinase C / Q000378:metabolism*; D051381:Rats; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology*
chemical_list: D005679:G(M3) Ganglioside; D005732:Gangliosides; D010704:Phorbols; D011493:Protein Kinase C; D013755:Tetradecanoylphorbol Acetate; D002118:Calcium