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. 1992 May 15;89(10):4231–4235. doi: 10.1073/pnas.89.10.4231

Phosphorylation sites in the amino-terminal region of mouse p53.

Y Wang 1, W Eckhart 1
PMCID: PMC49055  PMID: 1584757

Abstract

Phosphorylation is an attractive mechanism for regulating the functions of p53. The p34cdc2 kinase, which is involved in regulation of the cell cycle, phosphorylates serine-315 of human p53 in vitro. Casein kinase II phosphorylates serine-389 of mouse p53 in vitro. The amino-terminal region of mouse p53 contains a cluster of potential serine phosphorylation sites. Those sites have been proposed to be sites for phosphorylation by a double-stranded DNA-dependent kinase (DNA-PK) from HeLa cells and can be dephosphorylated by protein phosphatase 2A. To identify in vivo phosphorylation sites in the amino-terminal region of mouse p53, we mutated potential phosphorylation sites and analyzed the mutant proteins by tryptic phosphopeptide mapping. We identified serine-7, -9, -18, and -37 as in vivo phosphorylation sites. We further showed that mouse p53 expressed in bacteria is phosphorylated by DNA-PK on amino-terminal serine residues in vitro.

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Selected References

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

  1. Beemon K., Hunter T. Characterization of Rous sarcoma virus src gene products synthesized in vitro. J Virol. 1978 Nov;28(2):551–566. doi: 10.1128/jvi.28.2.551-566.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bender M. A., Palmer T. D., Gelinas R. E., Miller A. D. Evidence that the packaging signal of Moloney murine leukemia virus extends into the gag region. J Virol. 1987 May;61(5):1639–1646. doi: 10.1128/jvi.61.5.1639-1646.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Bischoff J. R., Friedman P. N., Marshak D. R., Prives C., Beach D. Human p53 is phosphorylated by p60-cdc2 and cyclin B-cdc2. Proc Natl Acad Sci U S A. 1990 Jun;87(12):4766–4770. doi: 10.1073/pnas.87.12.4766. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Boyle W. J., van der Geer P., Hunter T. Phosphopeptide mapping and phosphoamino acid analysis by two-dimensional separation on thin-layer cellulose plates. Methods Enzymol. 1991;201:110–149. doi: 10.1016/0076-6879(91)01013-r. [DOI] [PubMed] [Google Scholar]
  5. Braithwaite A. W., Sturzbecher H. W., Addison C., Palmer C., Rudge K., Jenkins J. R. Mouse p53 inhibits SV40 origin-dependent DNA replication. Nature. 1987 Oct 1;329(6138):458–460. doi: 10.1038/329458a0. [DOI] [PubMed] [Google Scholar]
  6. Carter T., Vancurová I., Sun I., Lou W., DeLeon S. A DNA-activated protein kinase from HeLa cell nuclei. Mol Cell Biol. 1990 Dec;10(12):6460–6471. doi: 10.1128/mcb.10.12.6460. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Chen C., Okayama H. High-efficiency transformation of mammalian cells by plasmid DNA. Mol Cell Biol. 1987 Aug;7(8):2745–2752. doi: 10.1128/mcb.7.8.2745. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Eliyahu D., Michalovitz D., Eliyahu S., Pinhasi-Kimhi O., Oren M. Wild-type p53 can inhibit oncogene-mediated focus formation. Proc Natl Acad Sci U S A. 1989 Nov;86(22):8763–8767. doi: 10.1073/pnas.86.22.8763. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Fields S., Jang S. K. Presence of a potent transcription activating sequence in the p53 protein. Science. 1990 Aug 31;249(4972):1046–1049. doi: 10.1126/science.2144363. [DOI] [PubMed] [Google Scholar]
  10. Finlay C. A., Hinds P. W., Levine A. J. The p53 proto-oncogene can act as a suppressor of transformation. Cell. 1989 Jun 30;57(7):1083–1093. doi: 10.1016/0092-8674(89)90045-7. [DOI] [PubMed] [Google Scholar]
  11. Fiol C. J., Mahrenholz A. M., Wang Y., Roeske R. W., Roach P. J. Formation of protein kinase recognition sites by covalent modification of the substrate. Molecular mechanism for the synergistic action of casein kinase II and glycogen synthase kinase 3. J Biol Chem. 1987 Oct 15;262(29):14042–14048. [PubMed] [Google Scholar]
  12. Gurney E. G., Harrison R. O., Fenno J. Monoclonal antibodies against simian virus 40 T antigens: evidence for distinct sublcasses of large T antigen and for similarities among nonviral T antigens. J Virol. 1980 Jun;34(3):752–763. doi: 10.1128/jvi.34.3.752-763.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Hollstein M., Sidransky D., Vogelstein B., Harris C. C. p53 mutations in human cancers. Science. 1991 Jul 5;253(5015):49–53. doi: 10.1126/science.1905840. [DOI] [PubMed] [Google Scholar]
  14. Hunter T., Sefton B. M. Transforming gene product of Rous sarcoma virus phosphorylates tyrosine. Proc Natl Acad Sci U S A. 1980 Mar;77(3):1311–1315. doi: 10.1073/pnas.77.3.1311. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  16. Lees-Miller S. P., Anderson C. W. The human double-stranded DNA-activated protein kinase phosphorylates the 90-kDa heat-shock protein, hsp90 alpha at two NH2-terminal threonine residues. J Biol Chem. 1989 Oct 15;264(29):17275–17280. [PubMed] [Google Scholar]
  17. Lees-Miller S. P., Anderson C. W. Two human 90-kDa heat shock proteins are phosphorylated in vivo at conserved serines that are phosphorylated in vitro by casein kinase II. J Biol Chem. 1989 Feb 15;264(5):2431–2437. [PubMed] [Google Scholar]
  18. Lees-Miller S. P., Chen Y. R., Anderson C. W. Human cells contain a DNA-activated protein kinase that phosphorylates simian virus 40 T antigen, mouse p53, and the human Ku autoantigen. Mol Cell Biol. 1990 Dec;10(12):6472–6481. doi: 10.1128/mcb.10.12.6472. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Levine A. J., Momand J., Finlay C. A. The p53 tumour suppressor gene. Nature. 1991 Jun 6;351(6326):453–456. doi: 10.1038/351453a0. [DOI] [PubMed] [Google Scholar]
  20. Meek D. W., Eckhart W. Mutation of the serine 312 phosphorylation site does not alter the ability of mouse p53 to inhibit simian virus 40 DNA replication in vivo. J Virol. 1990 Apr;64(4):1734–1744. doi: 10.1128/jvi.64.4.1734-1744.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Meek D. W., Eckhart W. Phosphorylation of p53 in normal and simian virus 40-transformed NIH 3T3 cells. Mol Cell Biol. 1988 Jan;8(1):461–465. doi: 10.1128/mcb.8.1.461. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Meek D. W., Simon S., Kikkawa U., Eckhart W. The p53 tumour suppressor protein is phosphorylated at serine 389 by casein kinase II. EMBO J. 1990 Oct;9(10):3253–3260. doi: 10.1002/j.1460-2075.1990.tb07524.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Raycroft L., Wu H. Y., Lozano G. Transcriptional activation by wild-type but not transforming mutants of the p53 anti-oncogene. Science. 1990 Aug 31;249(4972):1049–1051. doi: 10.1126/science.2144364. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Samad A., Anderson C. W., Carroll R. B. Mapping of phosphomonoester and apparent phosphodiester bonds of the oncogene product p53 from simian virus 40-transformed 3T3 cells. Proc Natl Acad Sci U S A. 1986 Feb;83(4):897–901. doi: 10.1073/pnas.83.4.897. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Scheidtmann K. H., Mumby M. C., Rundell K., Walter G. Dephosphorylation of simian virus 40 large-T antigen and p53 protein by protein phosphatase 2A: inhibition by small-t antigen. Mol Cell Biol. 1991 Apr;11(4):1996–2003. doi: 10.1128/mcb.11.4.1996. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Walker A. I., Hunt T., Jackson R. J., Anderson C. W. Double-stranded DNA induces the phosphorylation of several proteins including the 90 000 mol. wt. heat-shock protein in animal cell extracts. EMBO J. 1985 Jan;4(1):139–145. doi: 10.1002/j.1460-2075.1985.tb02328.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Wang E. H., Friedman P. N., Prives C. The murine p53 protein blocks replication of SV40 DNA in vitro by inhibiting the initiation functions of SV40 large T antigen. Cell. 1989 May 5;57(3):379–392. doi: 10.1016/0092-8674(89)90913-6. [DOI] [PubMed] [Google Scholar]
  28. Yewdell J. W., Gannon J. V., Lane D. P. Monoclonal antibody analysis of p53 expression in normal and transformed cells. J Virol. 1986 Aug;59(2):444–452. doi: 10.1128/jvi.59.2.444-452.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]

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