Summary
An adenylate cyclase activity was identified and characterized in preparations from Xenopus laevis ovarian tissue and follicles. The enzyme is more active in the presence of Mn2+ than of Mg2+, and it is highly activated by fluoride, guanyl-5′-yl-imidodiphosphate [Gpp(NH)p] and cholera toxin. During the last stages of oogenesis, as the oocytes grow in volume, the total adenylate cyclase activity increases more than tenfold, maintaining a constant relationship to the surface area of the follicle.
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M. M. F. and H. N. T. are Career Investigators of the Consejo Nacional de Investigaciones Cientificas y Técnicas (Argentina); A. R. K. is a fellow of the same institution.
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Jordana, X., Otero, C., Allende, C.C. et al. Adenylate cyclase activity in Xenopus laevis ovarian follicles. Mol Cell Biochem 40, 87–91 (1981). https://doi.org/10.1007/BF00224751
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DOI: https://doi.org/10.1007/BF00224751