Abstract
Phosphoamino acid compositions were determined for 10 size classes of cellular proteins, separated by electrophoresis through one-dimensional sodium dodecyl sulfate-polyacrylamide gels. Phosphotyrosine-containing proteins were observed in uninfected chicken embryo fibroblasts in every size class analyzed, ranging from approximately 20,000 to greater than 200,000 daltons. Transformation of chicken embryo fibroblasts by Rous sarcoma virus or PRC II avian sarcoma virus led to increases in phosphorylation of proteins at tyrosine residues in all of these size classes. A large fraction of the phosphotyrosine-containing protein molecules observed in Rous sarcoma virus-transformed cells was larger than 100,000 daltons with a second broad peak in the 35,000- to 60,000-dalton range. This study suggests that there are a number of substrates of viral or cellular tyrosine-specific protein kinases, which have not yet been identified by other methods.
Full text
PDF





Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Barbacid M., Beemon K., Devare S. G. Origin and functional properties of the major gene product of the Snyder-Theilen strain of feline sarcoma virus. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5158–5162. doi: 10.1073/pnas.77.9.5158. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 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]
- Beemon K. Transforming proteins of some feline and avian sarcoma viruses are related structurally and functionally. Cell. 1981 Apr;24(1):145–153. doi: 10.1016/0092-8674(81)90510-9. [DOI] [PubMed] [Google Scholar]
- Brugge J. S., Erikson R. L. Identification of a transformation-specific antigen induced by an avian sarcoma virus. Nature. 1977 Sep 22;269(5626):346–348. doi: 10.1038/269346a0. [DOI] [PubMed] [Google Scholar]
- Burr J. G., Dreyfuss G., Penman S., Buchanan J. M. Association of the src gene product of Rous sarcoma virus with cytoskeletal structures of chicken embryo fibroblasts. Proc Natl Acad Sci U S A. 1980 Jun;77(6):3484–3488. doi: 10.1073/pnas.77.6.3484. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Collett M. S., Erikson R. L. Protein kinase activity associated with the avian sarcoma virus src gene product. Proc Natl Acad Sci U S A. 1978 Apr;75(4):2021–2024. doi: 10.1073/pnas.75.4.2021. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Collett M. S., Purchio A. F., Erikson R. L. Avian sarcoma virus-transforming protein, pp60src shows protein kinase activity specific for tyrosine. Nature. 1980 May 15;285(5761):167–169. doi: 10.1038/285167a0. [DOI] [PubMed] [Google Scholar]
- Cooper J. A., Hunter T. Changes in protein phosphorylation in Rous sarcoma virus-transformed chicken embryo cells. Mol Cell Biol. 1981 Feb;1(2):165–178. doi: 10.1128/mcb.1.2.165. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Cooper J. A., Hunter T. Four different classes of retroviruses induce phosphorylation of tyrosines present in similar cellular proteins. Mol Cell Biol. 1981 May;1(5):394–407. doi: 10.1128/mcb.1.5.394. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Erikson E., Cook R., Miller G. J., Erikson R. L. The same normal cell protein is phosphorylated after transformation by avian sarcoma viruses with unrelated transforming genes. Mol Cell Biol. 1981 Jan;1(1):43–50. doi: 10.1128/mcb.1.1.43. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Erikson E., Erikson R. L. Identification of a cellular protein substrate phosphorylated by the avian sarcoma virus-transforming gene product. Cell. 1980 Oct;21(3):829–836. doi: 10.1016/0092-8674(80)90446-8. [DOI] [PubMed] [Google Scholar]
- Erikson R. L., Collett M. S., Erikson E., Purchio A. F. Evidence that the avian sarcoma virus transforming gene product is a cyclic AMP-independent protein kinase. Proc Natl Acad Sci U S A. 1979 Dec;76(12):6260–6264. doi: 10.1073/pnas.76.12.6260. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Feldman R. A., Hanafusa T., Hanafusa H. Characterization of protein kinase activity associated with the transforming gene product of Fujinami sarcoma virus. Cell. 1980 Dec;22(3):757–765. doi: 10.1016/0092-8674(80)90552-8. [DOI] [PubMed] [Google Scholar]
- Hunter T., Cooper J. A. Epidermal growth factor induces rapid tyrosine phosphorylation of proteins in A431 human tumor cells. Cell. 1981 Jun;24(3):741–752. doi: 10.1016/0092-8674(81)90100-8. [DOI] [PubMed] [Google Scholar]
- Hunter T., Sefton B. M., Beemon K. Studies on the structure and function of the avian sarcoma virus transforming-gene product. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 2):931–941. doi: 10.1101/sqb.1980.044.01.100. [DOI] [PubMed] [Google Scholar]
- 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]
- Kawai S., Yoshida M., Segawa K., Sugiyama H., Ishizaki R., Toyoshima K. Characterization of Y73, an avian sarcoma virus: a unique transforming gene and its product, a phosphopolyprotein with protein kinase activity. Proc Natl Acad Sci U S A. 1980 Oct;77(10):6199–6203. doi: 10.1073/pnas.77.10.6199. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 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]
- Levinson A. D., Oppermann H., Levintow L., Varmus H. E., Bishop J. M. Evidence that the transforming gene of avian sarcoma virus encodes a protein kinase associated with a phosphoprotein. Cell. 1978 Oct;15(2):561–572. doi: 10.1016/0092-8674(78)90024-7. [DOI] [PubMed] [Google Scholar]
- Levinson A. D., Oppermann H., Varmus H. E., Bishop J. M. The purified product of the transforming gene of avian sarcoma virus phosphorylates tyrosine. J Biol Chem. 1980 Dec 25;255(24):11973–11980. [PubMed] [Google Scholar]
- Neil J. C., Ghysdael J., Vogt P. K. Tyrosine-specific protein kinase activity associated with p105 of avian sarcoma virus PRCII. Virology. 1981 Feb;109(1):223–228. doi: 10.1016/0042-6822(81)90493-1. [DOI] [PubMed] [Google Scholar]
- Pawson T., Guyden J., Kung T. H., Radke K., Gilmore T., Martin G. S. A strain of Fujinami sarcoma virus which is temperature-sensitive in protein phosphorylation and cellular transformation. Cell. 1980 Dec;22(3):767–775. doi: 10.1016/0092-8674(80)90553-x. [DOI] [PubMed] [Google Scholar]
- Plimmer R. H. Esters of phosphoric acid: Phosphoryl hydroxyamino-acids. Biochem J. 1941 Apr;35(4):461–469. doi: 10.1042/bj0350461. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Radke K., Gilmore T., Martin G. S. Transformation by Rous sarcoma virus: a cellular substrate for transformation-specific protein phosphorylation contains phosphotyrosine. Cell. 1980 Oct;21(3):821–828. doi: 10.1016/0092-8674(80)90445-6. [DOI] [PubMed] [Google Scholar]
- Radke K., Martin G. S. Transformation by Rous sarcoma virus: effects of src gene expression on the synthesis and phosphorylation of cellular polypeptides. Proc Natl Acad Sci U S A. 1979 Oct;76(10):5212–5216. doi: 10.1073/pnas.76.10.5212. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sefton B. M., Hunter T., Ball E. H., Singer S. J. Vinculin: a cytoskeletal target of the transforming protein of Rous sarcoma virus. Cell. 1981 Apr;24(1):165–174. doi: 10.1016/0092-8674(81)90512-2. [DOI] [PubMed] [Google Scholar]
- Sefton B. M., Hunter T., Beemon K., Eckhart W. Evidence that the phosphorylation of tyrosine is essential for cellular transformation by Rous sarcoma virus. Cell. 1980 Jul;20(3):807–816. doi: 10.1016/0092-8674(80)90327-x. [DOI] [PubMed] [Google Scholar]
- Sefton B. M., Hunter T., Raschke W. C. Evidence that the Abelson virus protein functions in vivo as a protein kinase that phosphorylates tyrosine. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1552–1556. doi: 10.1073/pnas.78.3.1552. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Van de Ven W. J., Reynolds F. H., Jr, Stephenson J. R. The nonstructural components of polyproteins encoded by replication-defective mammalian transforming retroviruses are phosphorylated and have associated protein kinase activity. Virology. 1980 Feb;101(1):185–197. doi: 10.1016/0042-6822(80)90495-x. [DOI] [PubMed] [Google Scholar]
- Witte O. N., Dasgupta A., Baltimore D. Abelson murine leukaemia virus protein is phosphorylated in vitro to form phosphotyrosine. Nature. 1980 Feb 28;283(5750):826–831. doi: 10.1038/283826a0. [DOI] [PubMed] [Google Scholar]