Progesterone-induced changes in the phosphoryl potential during the meiotic divisions in amphibian oocytes: Role of Na/K-ATPase

Table 1 Comparison of [³²PO₄] Incorporation into Purified Phosvitin from Control and Progesterone-treated Rana pipiens Follicles^a

Protein Fraction	Control	Progesterone
	Sp. Act. Cpm/ìmole protein phosphate^b
Purified Phosvitin	160 ± 36	2368 ± 104

^aIsolated ovarian follicles were preincubated in Ringer's solution with or without 3.2 jaU progesterone for 5 h at 22°C, [³²PO₄] added, and then further incubated for 4 h. ^bMean ± SD (N = 3) Denuded oocytes and/or isolated ovarian follicles from 3 hibernating Rana pipiens females.

ISSN: 1471-213X