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. 1994 Oct 11;91(21):9896–9900. doi: 10.1073/pnas.91.21.9896

A role for cAMP-dependent protein kinase in early embryonic divisions.

D Grieco 1, E V Avvedimento 1, M E Gottesman 1
PMCID: PMC44924  PMID: 7937913

Abstract

The cAMP-dependent protein kinase (PKA) pathway affects cell cycle progression in "cycling" Xenopus egg extracts. The concentration of free PKA catalytic subunit oscillates during the cell cycle with a peak at the mitosis-interphase transition and a minimum at the onset of mitosis. Inhibition of endogenous PKA in interphase hastens the onset of mitosis. Stimulation of PKA induces interphase arrest, preventing the activation of the M-phase-promoting factor. PKA does not block the accumulation of cyclin or its binding to p34cdc2, but the resultant complex lacks kinase activity and p34cdc2 remains tyrosine-phosphorylated. PKA appears to stimulate an okadaic acid-sensitive serine/threonine phosphatase that acts upon cdc25. In this way PKA could downregulate the p34cdc2 tyrosine phosphatase activity of cdc25 and consequently block the activation of the M-phase-promoting factor.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Axton J. M., Dombrádi V., Cohen P. T., Glover D. M. One of the protein phosphatase 1 isoenzymes in Drosophila is essential for mitosis. Cell. 1990 Oct 5;63(1):33–46. doi: 10.1016/0092-8674(90)90286-n. [DOI] [PubMed] [Google Scholar]
  2. Bornslaeger E. A., Mattei P., Schultz R. M. Involvement of cAMP-dependent protein kinase and protein phosphorylation in regulation of mouse oocyte maturation. Dev Biol. 1986 Apr;114(2):453–462. doi: 10.1016/0012-1606(86)90209-5. [DOI] [PubMed] [Google Scholar]
  3. Burger M. M., Bombik B. M., Breckenridge B. M., Sheppard J. R. Growth control and cyclic alterations of cyclic AMP in the cell cycle. Nat New Biol. 1972 Oct 11;239(93):161–163. doi: 10.1038/newbio239161a0. [DOI] [PubMed] [Google Scholar]
  4. Cheng H. C., Kemp B. E., Pearson R. B., Smith A. J., Misconi L., Van Patten S. M., Walsh D. A. A potent synthetic peptide inhibitor of the cAMP-dependent protein kinase. J Biol Chem. 1986 Jan 25;261(3):989–992. [PubMed] [Google Scholar]
  5. Clarke P. R., Hoffmann I., Draetta G., Karsenti E. Dephosphorylation of cdc25-C by a type-2A protein phosphatase: specific regulation during the cell cycle in Xenopus egg extracts. Mol Biol Cell. 1993 Apr;4(4):397–411. doi: 10.1091/mbc.4.4.397. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Coleman T. R., Tang Z., Dunphy W. G. Negative regulation of the wee1 protein kinase by direct action of the nim1/cdr1 mitotic inducer. Cell. 1993 Mar 26;72(6):919–929. doi: 10.1016/0092-8674(93)90580-j. [DOI] [PubMed] [Google Scholar]
  7. Dasso M., Newport J. W. Completion of DNA replication is monitored by a feedback system that controls the initiation of mitosis in vitro: studies in Xenopus. Cell. 1990 Jun 1;61(5):811–823. doi: 10.1016/0092-8674(90)90191-g. [DOI] [PubMed] [Google Scholar]
  8. Dunphy W. G., Kumagai A. The cdc25 protein contains an intrinsic phosphatase activity. Cell. 1991 Oct 4;67(1):189–196. doi: 10.1016/0092-8674(91)90582-j. [DOI] [PubMed] [Google Scholar]
  9. Félix M. A., Cohen P., Karsenti E. Cdc2 H1 kinase is negatively regulated by a type 2A phosphatase in the Xenopus early embryonic cell cycle: evidence from the effects of okadaic acid. EMBO J. 1990 Mar;9(3):675–683. doi: 10.1002/j.1460-2075.1990.tb08159.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Gautier J., Solomon M. J., Booher R. N., Bazan J. F., Kirschner M. W. cdc25 is a specific tyrosine phosphatase that directly activates p34cdc2. Cell. 1991 Oct 4;67(1):197–211. doi: 10.1016/0092-8674(91)90583-k. [DOI] [PubMed] [Google Scholar]
  11. Gould K. L., Nurse P. Tyrosine phosphorylation of the fission yeast cdc2+ protein kinase regulates entry into mitosis. Nature. 1989 Nov 2;342(6245):39–45. doi: 10.1038/342039a0. [DOI] [PubMed] [Google Scholar]
  12. Hoffmann I., Clarke P. R., Marcote M. J., Karsenti E., Draetta G. Phosphorylation and activation of human cdc25-C by cdc2--cyclin B and its involvement in the self-amplification of MPF at mitosis. EMBO J. 1993 Jan;12(1):53–63. doi: 10.1002/j.1460-2075.1993.tb05631.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Izumi T., Walker D. H., Maller J. L. Periodic changes in phosphorylation of the Xenopus cdc25 phosphatase regulate its activity. Mol Biol Cell. 1992 Aug;3(8):927–939. doi: 10.1091/mbc.3.8.927. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Kinoshita N., Ohkura H., Yanagida M. Distinct, essential roles of type 1 and 2A protein phosphatases in the control of the fission yeast cell division cycle. Cell. 1990 Oct 19;63(2):405–415. doi: 10.1016/0092-8674(90)90173-c. [DOI] [PubMed] [Google Scholar]
  15. Krek W., Nigg E. A. Cell cycle regulation of vertebrate p34cdc2 activity: identification of Thr161 as an essential in vivo phosphorylation site. New Biol. 1992 Apr;4(4):323–329. [PubMed] [Google Scholar]
  16. Kumagai A., Dunphy W. G. Regulation of the cdc25 protein during the cell cycle in Xenopus extracts. Cell. 1992 Jul 10;70(1):139–151. doi: 10.1016/0092-8674(92)90540-s. [DOI] [PubMed] [Google Scholar]
  17. Lamb N. J., Cavadore J. C., Labbe J. C., Maurer R. A., Fernandez A. Inhibition of cAMP-dependent protein kinase plays a key role in the induction of mitosis and nuclear envelope breakdown in mammalian cells. EMBO J. 1991 Jun;10(6):1523–1533. doi: 10.1002/j.1460-2075.1991.tb07672.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Lee T. H., Solomon M. J., Mumby M. C., Kirschner M. W. INH, a negative regulator of MPF, is a form of protein phosphatase 2A. Cell. 1991 Jan 25;64(2):415–423. doi: 10.1016/0092-8674(91)90649-j. [DOI] [PubMed] [Google Scholar]
  19. Meijer L., Zarutskie P. Starfish oocyte maturation: 1-methyladenine triggers a drop of cAMP concentration related to the hormone-dependent period. Dev Biol. 1987 Jun;121(2):306–315. doi: 10.1016/0012-1606(87)90166-7. [DOI] [PubMed] [Google Scholar]
  20. Murray A. W., Kirschner M. W. Cyclin synthesis drives the early embryonic cell cycle. Nature. 1989 May 25;339(6222):275–280. doi: 10.1038/339275a0. [DOI] [PubMed] [Google Scholar]
  21. Nurse P. Universal control mechanism regulating onset of M-phase. Nature. 1990 Apr 5;344(6266):503–508. doi: 10.1038/344503a0. [DOI] [PubMed] [Google Scholar]
  22. Ohkura H., Kinoshita N., Miyatani S., Toda T., Yanagida M. The fission yeast dis2+ gene required for chromosome disjoining encodes one of two putative type 1 protein phosphatases. Cell. 1989 Jun 16;57(6):997–1007. doi: 10.1016/0092-8674(89)90338-3. [DOI] [PubMed] [Google Scholar]
  23. Russell P., Nurse P. cdc25+ functions as an inducer in the mitotic control of fission yeast. Cell. 1986 Apr 11;45(1):145–153. doi: 10.1016/0092-8674(86)90546-5. [DOI] [PubMed] [Google Scholar]
  24. Smythe C., Newport J. W. Coupling of mitosis to the completion of S phase in Xenopus occurs via modulation of the tyrosine kinase that phosphorylates p34cdc2. Cell. 1992 Feb 21;68(4):787–797. doi: 10.1016/0092-8674(92)90153-4. [DOI] [PubMed] [Google Scholar]
  25. Solomon M. J., Glotzer M., Lee T. H., Philippe M., Kirschner M. W. Cyclin activation of p34cdc2. Cell. 1990 Nov 30;63(5):1013–1024. doi: 10.1016/0092-8674(90)90504-8. [DOI] [PubMed] [Google Scholar]

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