[Effects of a gonadotropic hormone of teleost fish on the adenylate cyclase of rat ovary and on its stimulation by ovine gonadotropins].
Carp gonadotropin (cGTH) stimulated adenylate cyclase from 20-24 day old (but not 16-18 day old) rat ovaries; its subunits were inactive. Carp GTH (but not its subunits) increased the apparent KD for oFSH but not for oLH. These results suggest that cGTH mainly interacts with FSH sensitive adenylate cyclase-receptor systems, with an efficiency about 6 X 10(3) times lower than oFSH itself.
D000262:Adenylyl Cyclases / Q000378:metabolism*; D000818:Animals; D002347:Carps / Q000502:physiology*; D003530:Cyprinidae / Q000502:physiology*; D004347:Drug Interactions; D005260:Female; D005640:Follicle Stimulating Hormone / Q000494:pharmacology; D006062:Gonadotropins / Q000494:pharmacology*; D007986:Luteinizing Hormone / Q000494:pharmacology; D010053:Ovary / Q000201:enzymology*; D051381:Rats; D012756:Sheep; D013997:Time Factors
D006062:Gonadotropins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D000262:Adenylyl Cyclases
Effets d'une hormone gonadotrope de poisson téléostéen sur l'adénylate cyclase d'ovaire de ratte et sur sa stimulation par les gonadotropines ovines.