Prostaglandin E (dmPGE2) action in vitro on the activity of rat liver Golgi apparatus galactosyltransferase.

In vitro addition of 16,16'-dimethyl prostaglandin E2 to Golgi-rich membrane fraction in final concentration of 0.1 microgram/1 mg of protein increased generally the activity of galactosyltransferase in comparison with control. The percentage of phospholipids in the whole fraction was similar in both investigated groups, only the sum of phosphatidylethanolamine+phosphatidic acid was significantly lower after addition of dmPGE2 than in the control (0.001 < P < 0.01).