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. 1994 Feb;14(2):1171–1178. doi: 10.1128/mcb.14.2.1171

Physical and functional interaction between wild-type p53 and mdm2 proteins.

D S Haines 1, J E Landers 1, L J Engle 1, D L George 1
PMCID: PMC358473  PMID: 8289798

Abstract

The mdm2 oncogene, which is often amplified in mammalian tumors, produces a number of transcripts that encode distinct protein forms. Previous studies demonstrating that overexpression of the mdm2 gene can activate its transforming potential, and can inhibit the transcriptional activation function of p53, prompted us to begin to explore possible functional differences among the various mdm2 products. Utilizing a transient transfection assay, we have evaluated four naturally occurring murine mdm2 forms for their ability to inhibit p53-mediated transcriptional activation of reporter genes regulated by p53 response elements. Three of these mdm2 forms were found to physically associate with the wild-type p53 protein and to possess the ability to inhibit its transactivation function. A fourth form failed to exhibit either of these functions. This last mdm2 form lacks the N-terminal protein domain that is present in the other three splice forms examined, pointing to this region as one that is critical for complex formation with the p53 protein. Identifying such differences among mdm2 proteins provides important clues for dissecting their functional domains, and emphasizes that defining the individual properties of these products will be critical in elucidating the overall growth control function of the mdm2 gene.

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Selected References

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

  1. Baker S. J., Markowitz S., Fearon E. R., Willson J. K., Vogelstein B. Suppression of human colorectal carcinoma cell growth by wild-type p53. Science. 1990 Aug 24;249(4971):912–915. doi: 10.1126/science.2144057. [DOI] [PubMed] [Google Scholar]
  2. Barak Y., Oren M. Enhanced binding of a 95 kDa protein to p53 in cells undergoing p53-mediated growth arrest. EMBO J. 1992 Jun;11(6):2115–2121. doi: 10.1002/j.1460-2075.1992.tb05270.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Cahilly-Snyder L., Yang-Feng T., Francke U., George D. L. Molecular analysis and chromosomal mapping of amplified genes isolated from a transformed mouse 3T3 cell line. Somat Cell Mol Genet. 1987 May;13(3):235–244. doi: 10.1007/BF01535205. [DOI] [PubMed] [Google Scholar]
  4. Chen J., Marechal V., Levine A. J. Mapping of the p53 and mdm-2 interaction domains. Mol Cell Biol. 1993 Jul;13(7):4107–4114. doi: 10.1128/mcb.13.7.4107. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Chin K. V., Ueda K., Pastan I., Gottesman M. M. Modulation of activity of the promoter of the human MDR1 gene by Ras and p53. Science. 1992 Jan 24;255(5043):459–462. doi: 10.1126/science.1346476. [DOI] [PubMed] [Google Scholar]
  6. Clarke A. R., Purdie C. A., Harrison D. J., Morris R. G., Bird C. C., Hooper M. L., Wyllie A. H. Thymocyte apoptosis induced by p53-dependent and independent pathways. Nature. 1993 Apr 29;362(6423):849–852. doi: 10.1038/362849a0. [DOI] [PubMed] [Google Scholar]
  7. Diller L., Kassel J., Nelson C. E., Gryka M. A., Litwak G., Gebhardt M., Bressac B., Ozturk M., Baker S. J., Vogelstein B. p53 functions as a cell cycle control protein in osteosarcomas. Mol Cell Biol. 1990 Nov;10(11):5772–5781. doi: 10.1128/mcb.10.11.5772. [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. Fakharzadeh S. S., Trusko S. P., George D. L. Tumorigenic potential associated with enhanced expression of a gene that is amplified in a mouse tumor cell line. EMBO J. 1991 Jun;10(6):1565–1569. doi: 10.1002/j.1460-2075.1991.tb07676.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Farmer G., Bargonetti J., Zhu H., Friedman P., Prywes R., Prives C. Wild-type p53 activates transcription in vitro. Nature. 1992 Jul 2;358(6381):83–86. doi: 10.1038/358083a0. [DOI] [PubMed] [Google Scholar]
  11. 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]
  12. Finlay C. A. The mdm-2 oncogene can overcome wild-type p53 suppression of transformed cell growth. Mol Cell Biol. 1993 Jan;13(1):301–306. doi: 10.1128/mcb.13.1.301. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Funk W. D., Pak D. T., Karas R. H., Wright W. E., Shay J. W. A transcriptionally active DNA-binding site for human p53 protein complexes. Mol Cell Biol. 1992 Jun;12(6):2866–2871. doi: 10.1128/mcb.12.6.2866. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Gorman C. M., Moffat L. F., Howard B. H. Recombinant genomes which express chloramphenicol acetyltransferase in mammalian cells. Mol Cell Biol. 1982 Sep;2(9):1044–1051. doi: 10.1128/mcb.2.9.1044. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Graham F. L., van der Eb A. J. A new technique for the assay of infectivity of human adenovirus 5 DNA. Virology. 1973 Apr;52(2):456–467. doi: 10.1016/0042-6822(73)90341-3. [DOI] [PubMed] [Google Scholar]
  16. Hinds P. W., Finlay C. A., Quartin R. S., Baker S. J., Fearon E. R., Vogelstein B., Levine A. J. Mutant p53 DNA clones from human colon carcinomas cooperate with ras in transforming primary rat cells: a comparison of the "hot spot" mutant phenotypes. Cell Growth Differ. 1990 Dec;1(12):571–580. [PubMed] [Google Scholar]
  17. 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]
  18. Kern S. E., Kinzler K. W., Bruskin A., Jarosz D., Friedman P., Prives C., Vogelstein B. Identification of p53 as a sequence-specific DNA-binding protein. Science. 1991 Jun 21;252(5013):1708–1711. doi: 10.1126/science.2047879. [DOI] [PubMed] [Google Scholar]
  19. Kern S. E., Pietenpol J. A., Thiagalingam S., Seymour A., Kinzler K. W., Vogelstein B. Oncogenic forms of p53 inhibit p53-regulated gene expression. Science. 1992 May 8;256(5058):827–830. doi: 10.1126/science.1589764. [DOI] [PubMed] [Google Scholar]
  20. Ladanyi M., Cha C., Lewis R., Jhanwar S. C., Huvos A. G., Healey J. H. MDM2 gene amplification in metastatic osteosarcoma. Cancer Res. 1993 Jan 1;53(1):16–18. [PubMed] [Google Scholar]
  21. 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]
  22. Livingstone L. R., White A., Sprouse J., Livanos E., Jacks T., Tlsty T. D. Altered cell cycle arrest and gene amplification potential accompany loss of wild-type p53. Cell. 1992 Sep 18;70(6):923–935. doi: 10.1016/0092-8674(92)90243-6. [DOI] [PubMed] [Google Scholar]
  23. Lowe S. W., Ruley H. E., Jacks T., Housman D. E. p53-dependent apoptosis modulates the cytotoxicity of anticancer agents. Cell. 1993 Sep 24;74(6):957–967. doi: 10.1016/0092-8674(93)90719-7. [DOI] [PubMed] [Google Scholar]
  24. Lowe S. W., Schmitt E. M., Smith S. W., Osborne B. A., Jacks T. p53 is required for radiation-induced apoptosis in mouse thymocytes. Nature. 1993 Apr 29;362(6423):847–849. doi: 10.1038/362847a0. [DOI] [PubMed] [Google Scholar]
  25. Martinez J., Georgoff I., Martinez J., Levine A. J. Cellular localization and cell cycle regulation by a temperature-sensitive p53 protein. Genes Dev. 1991 Feb;5(2):151–159. doi: 10.1101/gad.5.2.151. [DOI] [PubMed] [Google Scholar]
  26. Mercer W. E., Shields M. T., Amin M., Sauve G. J., Appella E., Romano J. W., Ullrich S. J. Negative growth regulation in a glioblastoma tumor cell line that conditionally expresses human wild-type p53. Proc Natl Acad Sci U S A. 1990 Aug;87(16):6166–6170. doi: 10.1073/pnas.87.16.6166. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Momand J., Zambetti G. P., Olson D. C., George D., Levine A. J. The mdm-2 oncogene product forms a complex with the p53 protein and inhibits p53-mediated transactivation. Cell. 1992 Jun 26;69(7):1237–1245. doi: 10.1016/0092-8674(92)90644-r. [DOI] [PubMed] [Google Scholar]
  28. Oliner J. D., Kinzler K. W., Meltzer P. S., George D. L., Vogelstein B. Amplification of a gene encoding a p53-associated protein in human sarcomas. Nature. 1992 Jul 2;358(6381):80–83. doi: 10.1038/358080a0. [DOI] [PubMed] [Google Scholar]
  29. Oliner J. D., Pietenpol J. A., Thiagalingam S., Gyuris J., Kinzler K. W., Vogelstein B. Oncoprotein MDM2 conceals the activation domain of tumour suppressor p53. Nature. 1993 Apr 29;362(6423):857–860. doi: 10.1038/362857a0. [DOI] [PubMed] [Google Scholar]
  30. Olson D. C., Marechal V., Momand J., Chen J., Romocki C., Levine A. J. Identification and characterization of multiple mdm-2 proteins and mdm-2-p53 protein complexes. Oncogene. 1993 Sep;8(9):2353–2360. [PubMed] [Google Scholar]
  31. Otto A., Deppert W. Upregulation of mdm-2 expression in Meth A tumor cells tolerating wild-type p53. Oncogene. 1993 Sep;8(9):2591–2603. [PubMed] [Google Scholar]
  32. Seto E., Usheva A., Zambetti G. P., Momand J., Horikoshi N., Weinmann R., Levine A. J., Shenk T. Wild-type p53 binds to the TATA-binding protein and represses transcription. Proc Natl Acad Sci U S A. 1992 Dec 15;89(24):12028–12032. doi: 10.1073/pnas.89.24.12028. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. Shaulsky G., Goldfinger N., Peled A., Rotter V. Involvement of wild-type p53 in pre-B-cell differentiation in vitro. Proc Natl Acad Sci U S A. 1991 Oct 15;88(20):8982–8986. doi: 10.1073/pnas.88.20.8982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Shaw P., Bovey R., Tardy S., Sahli R., Sordat B., Costa J. Induction of apoptosis by wild-type p53 in a human colon tumor-derived cell line. Proc Natl Acad Sci U S A. 1992 May 15;89(10):4495–4499. doi: 10.1073/pnas.89.10.4495. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Subler M. A., Martin D. W., Deb S. Inhibition of viral and cellular promoters by human wild-type p53. J Virol. 1992 Aug;66(8):4757–4762. doi: 10.1128/jvi.66.8.4757-4762.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. Tan T. H., Wallis J., Levine A. J. Identification of the p53 protein domain involved in formation of the simian virus 40 large T-antigen-p53 protein complex. J Virol. 1986 Sep;59(3):574–583. doi: 10.1128/jvi.59.3.574-583.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Vogelstein B., Kinzler K. W. p53 function and dysfunction. Cell. 1992 Aug 21;70(4):523–526. doi: 10.1016/0092-8674(92)90421-8. [DOI] [PubMed] [Google Scholar]
  38. Wu X., Bayle J. H., Olson D., Levine A. J. The p53-mdm-2 autoregulatory feedback loop. Genes Dev. 1993 Jul;7(7A):1126–1132. doi: 10.1101/gad.7.7a.1126. [DOI] [PubMed] [Google Scholar]
  39. Yin Y., Tainsky M. A., Bischoff F. Z., Strong L. C., Wahl G. M. Wild-type p53 restores cell cycle control and inhibits gene amplification in cells with mutant p53 alleles. Cell. 1992 Sep 18;70(6):937–948. doi: 10.1016/0092-8674(92)90244-7. [DOI] [PubMed] [Google Scholar]
  40. Yonish-Rouach E., Resnitzky D., Lotem J., Sachs L., Kimchi A., Oren M. Wild-type p53 induces apoptosis of myeloid leukaemic cells that is inhibited by interleukin-6. Nature. 1991 Jul 25;352(6333):345–347. doi: 10.1038/352345a0. [DOI] [PubMed] [Google Scholar]
  41. Zambetti G. P., Bargonetti J., Walker K., Prives C., Levine A. J. Wild-type p53 mediates positive regulation of gene expression through a specific DNA sequence element. Genes Dev. 1992 Jul;6(7):1143–1152. doi: 10.1101/gad.6.7.1143. [DOI] [PubMed] [Google Scholar]
  42. de Wet J. R., Wood K. V., DeLuca M., Helinski D. R., Subramani S. Firefly luciferase gene: structure and expression in mammalian cells. Mol Cell Biol. 1987 Feb;7(2):725–737. doi: 10.1128/mcb.7.2.725. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. el-Deiry W. S., Kern S. E., Pietenpol J. A., Kinzler K. W., Vogelstein B. Definition of a consensus binding site for p53. Nat Genet. 1992 Apr;1(1):45–49. doi: 10.1038/ng0492-45. [DOI] [PubMed] [Google Scholar]

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