Skip to main content
PMC home page
Molecular and Cellular Biology logoLink to Molecular and Cellular Biology
. 1981 Feb;1(2):101–110. doi: 10.1128/mcb.1.2.101

Post-translational regulation of the 54K cellular tumor antigen in normal and transformed cells.

M Oren 1, W Maltzman 1, A J Levine 1
PMCID: PMC369648  PMID: 6100960

Abstract

The 54K cellular tumor antigen has been translated in vitro, using messenger ribonucleic acids from simian virus 40 (SV40)-transformed cells or 3T3 cells. The in vitro 54K product could be immunoprecipitated with SV40 tumor serum and had a peptide map that was similar, but not identical, to the in vivo product. The levels of this 54K protein in SV3T3 cells were significantly higher than those detected in 3T3 cells (D. I. H. Linzer, W. Maltzman, and A. J. Levine, Virology 98:308-318, 1979). In spite of this, the levels of translatable 54K messenger ribonucleic acid from 3T3 and SV3T3 cells were roughly equivalent or often greater in 3T3 cells. Pulse-chase experiments with the 54K protein from 3T3 or SV3T3 cells demonstrated that this protein, once synthesized, was rapidly degraded in 3T3 cells but was extremely stable in SV3T3 cells. Similarly, in an SV40 tsA-transformed cell line, temperature sensitive for the SV40 T-antigen, the 54K protein was rapidly turned over at the nonpermissive temperature and stable at the permissive temperature, whereas the levels of translatable 54K messenger ribonucleic acid at each temperature were roughly equal. These results demonstrate a post-translational regulation of the 54K cellular tumor antigen and suggest that this control is mediated by the SV40 large T-antigen.

Full text

PDF
101

Images in this article

103Image
on p.103
105Image
on p.105
107Image
on p.107
108Image
on p.108

Selected References

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

  1. Aaronson S. A., Todaro G. J. Development of 3T3-like lines from Balb-c mouse embryo cultures: transformation susceptibility to SV40. J Cell Physiol. 1968 Oct;72(2):141–148. doi: 10.1002/jcp.1040720208. [DOI] [PubMed] [Google Scholar]
  2. Chang C., Simmons D. T., Martin M. A., Mora P. T. Identification and partial characterization of new antigens from simian virus 40-transformed mouse cells. J Virol. 1979 Aug;31(2):463–471. doi: 10.1128/jvi.31.2.463-471.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Crawford L. V., Cole C. N., Smith A. E., Paucha E., Tegtmeyer P., Rundell K., Berg P. Organization and expression of early genes of simian virus 40. Proc Natl Acad Sci U S A. 1978 Jan;75(1):117–121. doi: 10.1073/pnas.75.1.117. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. DeLeo A. B., Jay G., Appella E., Dubois G. C., Law L. W., Old L. J. Detection of a transformation-related antigen in chemically induced sarcomas and other transformed cells of the mouse. Proc Natl Acad Sci U S A. 1979 May;76(5):2420–2424. doi: 10.1073/pnas.76.5.2420. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Galos R. S., Williams J., Binger M. H., Flint S. J. Location of additional early gene sequences in the adenoviral chromosome. Cell. 1979 Aug;17(4):945–956. doi: 10.1016/0092-8674(79)90334-9. [DOI] [PubMed] [Google Scholar]
  6. 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]
  7. Ide T., Whelly S., Baserga R. Stimulation of RNA synthesis in isolated nuclei by partially purified preparations of simian virus 40 T-antigen. Proc Natl Acad Sci U S A. 1977 Aug;74(8):3189–3192. doi: 10.1073/pnas.74.8.3189. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Kress M., May E., Cassingena R., May P. Simian virus 40-transformed cells express new species of proteins precipitable by anti-simian virus 40 tumor serum. J Virol. 1979 Aug;31(2):472–483. doi: 10.1128/jvi.31.2.472-483.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Lane D. P., Crawford L. V. T antigen is bound to a host protein in SV40-transformed cells. Nature. 1979 Mar 15;278(5701):261–263. doi: 10.1038/278261a0. [DOI] [PubMed] [Google Scholar]
  10. Laskey R. A., Mills A. D. Quantitative film detection of 3H and 14C in polyacrylamide gels by fluorography. Eur J Biochem. 1975 Aug 15;56(2):335–341. doi: 10.1111/j.1432-1033.1975.tb02238.x. [DOI] [PubMed] [Google Scholar]
  11. Linzer D. I., Levine A. J. Characterization of a 54K dalton cellular SV40 tumor antigen present in SV40-transformed cells and uninfected embryonal carcinoma cells. Cell. 1979 May;17(1):43–52. doi: 10.1016/0092-8674(79)90293-9. [DOI] [PubMed] [Google Scholar]
  12. Linzer D. I., Maltzman W., Levine A. J. The SV40 A gene product is required for the production of a 54,000 MW cellular tumor antigen. Virology. 1979 Oct 30;98(2):308–318. doi: 10.1016/0042-6822(79)90554-3. [DOI] [PubMed] [Google Scholar]
  13. Maltzman W., Linzer D. I., Brown F., Teresky A. K., Rosenstraus M., Levine A. J. Permanent teratocarcinoma-derived cell lines stabilized by transformation with SV40 and SV40tsA mutant viruses. Int Rev Cytol Suppl. 1979;(10):173–189. doi: 10.1016/s0074-7696(08)60620-8. [DOI] [PubMed] [Google Scholar]
  14. McCormick F., Harlow E. Association of a murine 53,000-dalton phosphoprotein with simian virus 40 large-T antigen in transformed cells. J Virol. 1980 Apr;34(1):213–224. doi: 10.1128/jvi.34.1.213-224.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Melero J. A., Stitt D. T., Mangel W. F., Carroll R. B. Identification of new polypeptide species (48-55K) immunoprecipitable by antiserum to purified large T antigen and present in SV40-infected and -transformed cells. Virology. 1979 Mar;93(2):466–480. doi: 10.1016/0042-6822(79)90250-2. [DOI] [PubMed] [Google Scholar]
  16. Paucha E., Harvey R., Smith A. E. Cell-free synthesis of simian virus 40 T-antigens. J Virol. 1978 Oct;28(1):154–170. doi: 10.1128/jvi.28.1.154-170.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Pelham H. R., Jackson R. J. An efficient mRNA-dependent translation system from reticulocyte lysates. Eur J Biochem. 1976 Aug 1;67(1):247–256. doi: 10.1111/j.1432-1033.1976.tb10656.x. [DOI] [PubMed] [Google Scholar]
  18. Postel E. H., Levine A. J. The requirement of simian virus 40 gene A product for the stimulation of cellular thymidine kinase activity after viral infection. Virology. 1976 Aug;73(1):206–215. doi: 10.1016/0042-6822(76)90075-1. [DOI] [PubMed] [Google Scholar]
  19. Prives C., Gilboa E., Revel M., Winocour E. Cell-free translation of simian virus 40 early messenger RNA coding for viral T-antigen. Proc Natl Acad Sci U S A. 1977 Feb;74(2):457–461. doi: 10.1073/pnas.74.2.457. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Reed S. I., Stark G. R., Alwine J. C. Autoregulation of simian virus 40 gene A by T antigen. Proc Natl Acad Sci U S A. 1976 Sep;73(9):3083–3087. doi: 10.1073/pnas.73.9.3083. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Simmons D. T., Martin M. A., Mora P. T., Chang C. Relationship among Tau antigens isolated from various lines of simian virus 40-transformed cells. J Virol. 1980 Jun;34(3):650–657. doi: 10.1128/jvi.34.3.650-657.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Smith A. E., Smith R., Paucha E. Characterization of different tumor antigens present in cells transformed by simian virus 40. Cell. 1979 Oct;18(2):335–346. doi: 10.1016/0092-8674(79)90053-9. [DOI] [PubMed] [Google Scholar]
  23. Tegtmeyer P. Altered patterns of protein synthesis in infection by SV40 mutants. Cold Spring Harb Symp Quant Biol. 1975;39(Pt 1):9–15. doi: 10.1101/sqb.1974.039.01.004. [DOI] [PubMed] [Google Scholar]
  24. Whelly S., Ide T., Baserga R. Stimulation of RNA synthesis in isolated nucleoli by preparations of simian virus 40 T antigen. Virology. 1978 Jul 1;88(1):82–91. doi: 10.1016/0042-6822(78)90112-5. [DOI] [PubMed] [Google Scholar]

Articles from Molecular and Cellular Biology are provided here courtesy of Taylor & Francis

RESOURCES