Mulner O, Huchon D, Thibier C, Ozon R
Biochim Biophys Acta. 1979 Jan 4;582(1):179-84. doi: 10.1016/0304-4165(79)90301-5.
[alpha-32P]ATP was microinjected into Xenopus oocyte and neosynthesized cyclic AMP was isolated. Cholera toxin inhibited progesterone-induced maturation and stimulated after 3 h of preincubation the amount of neosynthesized cyclic AMP. Progesterone decreased the neosynthesis of cyclic AMP during the first hour following addition of the hormone.