Abstract
Progesterone triggers the first meiotic cell division of Xenopus oocyte and inhibits cAMP synthesis. The effect of pertussis toxin purified from Bordetella pertussis was tested on the maturation of Xenopus oocyte. The toxin did not inhibit progesterone‐induced resumption of meiosis or the hormone‐induced drop in cAMP level. This indicates that progesterone action is not mediated by the Ni subunit of the oocyte adenylate cyclase. Furthermore, pertussis toxin caused a reduction in the time course of maturation correlated with the precocious appearance of an alkali stable 47kDa phosphoprotein, a marker of the maturation promoting factor (MPF) activity. Pertussis toxin effects mimicked those of 2‐glycerophosphate suggesting that both agents act on the steady‐state level of phosphorylation implicated in MPF activity.
References
24
Referenced
26
10.1016/S0074-7696(08)61464-3
10.1016/S0021-9258(17)40606-5
10.1016/0303-7207(81)90092-7
10.1016/0304-4165(79)90301-5
10.1016/S0021-9258(19)69173-8
{'key': 'e_1_2_1_7_1', 'first-page': '527', 'volume': '3', 'author': 'Jordana X.', 'year': '1981', 'journal-title': 'Biochem. Int.'}
/ Biochem. Int. by Jordana X. (1981)10.1016/0303-7207(82)90033-8
10.1016/S0021-9258(18)32863-1
10.1016/S0021-9258(18)32881-3
10.1128/jb.58.2.127-134.1949
10.1016/0005-2795(79)90208-3
10.1128/iai.41.1.313-320.1983
{'key': 'e_1_2_1_14_1', 'first-page': '1013', 'volume': '39', 'author': 'Connel G.E.', 'year': '1961', 'journal-title': 'J. Biochem.'}
/ J. Biochem. by Connel G.E. (1961)10.1002/jmor.1051360203
10.1016/0022-4731(82)90121-2
10.1038/227680a0
10.1073/pnas.81.16.5150
10.1016/0012-1606(77)90093-8
{'key': 'e_1_2_1_20_1', 'first-page': '127', 'volume': '299', 'author': 'Asselin J.', 'year': '1984', 'journal-title': 'C.R. Acad. Sci. Paris'}
/ C.R. Acad. Sci. Paris by Asselin J. (1984)10.1016/0014-5793(84)80562-1
10.1016/0303-7207(83)90038-2
10.1016/0006-291X(83)90565-X
10.1016/S0021-9258(17)43413-2
{'key': 'e_1_2_1_25_1', 'first-page': '85', 'volume-title': 'Steroids and their Mechanism of Action in Non-Mammalian Vertebrates', 'author': 'Boyer J.', 'year': '1980'}
/ Steroids and their Mechanism of Action in Non-Mammalian Vertebrates by Boyer J. (1980)
Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 25, 2002, 3:58 a.m.) |
Deposited | 1 year, 11 months ago (Sept. 16, 2023, 4:33 a.m.) |
Indexed | 11 months, 2 weeks ago (Sept. 15, 2024, 8:59 p.m.) |
Issued | 40 years, 6 months ago (Feb. 25, 1985) |
Published | 40 years, 6 months ago (Feb. 25, 1985) |
Published Online | 23 years, 10 months ago (Nov. 2, 2001) |
Published Print | 40 years, 6 months ago (Feb. 25, 1985) |
@article{Mulner_1985, title={Pertussis toxin facilitates the progesterone‐induced maturation of Xenopus oocyte: Possible role of protein phosphorylation}, volume={181}, ISSN={1873-3468}, url={http://dx.doi.org/10.1016/0014-5793(85)80300-8}, DOI={10.1016/0014-5793(85)80300-8}, number={2}, journal={FEBS Letters}, publisher={Wiley}, author={Mulner, Odile and Megret, Françoise and Alouf, Joseph E. and Ozon, René}, year={1985}, month=feb, pages={397–402} }