Capasso A, Cretì P, De Petrocellis B, De Prisco PP, Parisi E. Role of dopamine and indolamine derivatives in the regulation of the sea urchin adenylate cyclase.
Biochem Biophys Res Commun 1988;
154:758-64. [PMID:
3401234 DOI:
10.1016/0006-291x(88)90205-7]
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Abstract
The adenylate cyclase of the sea urchin egg is stimulated by dopamine in the presence of GTP. The enzyme activity is strongly enhanced when Gpp (NH)p is substituted for GTP, or after cholera toxin treatment. Gramine, an indolamine derivative, brings about non-competitive inhibition of the dopamine-stimulated adenylate cyclase activity. Pertussis toxin causes an attenuation of the gramine-induced inhibition of adenylate cyclase. These results show that dopamine and indolamine derivatives partecipate in the regulation of the adenylate cyclase activity of the sea urchin egg.
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