Skip to main content
NCBI home page
Journal of Virology logoLink to Journal of Virology
. 1986 Nov;60(2):765–767. doi: 10.1128/jvi.60.2.765-767.1986

Specific inhibition of tyrosine kinase activity by an antibody to the v-ros oncogene product.

P C Balduzzi, M Chovav, J R Christensen, I G Macara
PMCID: PMC288953  PMID: 2430110

Abstract

Antibodies present in two peritoneal exudates of rats bearing abdominal tumors induced by UR2-transformed rat cells were characterized. The ability to immunoprecipitate p68gag-ros and to inhibit the protein and phospholipid kinase activities of this protein was investigated. One of the exudates specifically inhibited tyrosyl phosphorylation by p68gag-ros but not the activity of other known tyrosyl kinases, such as p150gag-fps of UR1 avian sarcoma virus, p60src, and the insulin receptor. It precipitated p68gag-ros but not Pr76 or other gag-related proteins from UR2-infected cells. Phosphorylation of phosphatidylinositol was not affected by this exudate, suggesting that this activity is not intrinsic to p68gag-ros. Another exudate precipitated p68gag-ros but not gag-related proteins from UR2-infected cells or p140gag-fps from Fujinami sarcoma virus-infected cells. These results demonstrated that the antibodies in these exudates recognized epitopes present in the ros portion of the fused protein p68gag-ros, but only one of the two exudates inhibited the intrinsic tyrosyl kinase of p68gag-ros.

Full text

PDF
765

Images in this article

766Image
on p.766
766Image
on p.766
766Image
on p.766
767Image
on p.767

Selected References

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

  1. Balduzzi P. C., Notter M. F., Morgan H. R., Shibuya M. Some biological properties of two new avian sarcoma viruses. J Virol. 1981 Oct;40(1):268–275. doi: 10.1128/jvi.40.1.268-275.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Braun S., Raymond W. E., Racker E. Synthetic tyrosine polymers as substrates and inhibitors of tyrosine-specific protein kinases. J Biol Chem. 1984 Feb 25;259(4):2051–2054. [PubMed] [Google Scholar]
  3. Feldman R. A., Wang L. H., Hanafusa H., Balduzzi P. C. Avian sarcoma virus UR2 encodes a transforming protein which is associated with a unique protein kinase activity. J Virol. 1982 Apr;42(1):228–236. doi: 10.1128/jvi.42.1.228-236.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Gilmore T., DeClue J. E., Martin G. S. Protein phosphorylation at tyrosine is induced by the v-erbB gene product in vivo and in vitro. Cell. 1985 Mar;40(3):609–618. doi: 10.1016/0092-8674(85)90209-0. [DOI] [PubMed] [Google Scholar]
  5. Hampe A., Gobet M., Sherr C. J., Galibert F. Nucleotide sequence of the feline retroviral oncogene v-fms shows unexpected homology with oncogenes encoding tyrosine-specific protein kinases. Proc Natl Acad Sci U S A. 1984 Jan;81(1):85–89. doi: 10.1073/pnas.81.1.85. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Macara I. G., Marinetti G. V., Balduzzi P. C. Transforming protein of avian sarcoma virus UR2 is associated with phosphatidylinositol kinase activity: possible role in tumorigenesis. Proc Natl Acad Sci U S A. 1984 May;81(9):2728–2732. doi: 10.1073/pnas.81.9.2728. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Neckameyer W. S., Shibuya M., Hsu M. T., Wang L. H. Proto-oncogene c-ros codes for a molecule with structural features common to those of growth factor receptors and displays tissue specific and developmentally regulated expression. Mol Cell Biol. 1986 May;6(5):1478–1486. doi: 10.1128/mcb.6.5.1478. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Neckameyer W. S., Wang L. H. Nucleotide sequence of avian sarcoma virus UR2 and comparison of its transforming gene with other members of the tyrosine protein kinase oncogene family. J Virol. 1985 Mar;53(3):879–884. doi: 10.1128/jvi.53.3.879-884.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Quade K. Transformation of mammalian cells by avian myelocytomatosis virus and avian erythroblastosis virus. Virology. 1979 Oct 30;98(2):461–465. doi: 10.1016/0042-6822(79)90569-5. [DOI] [PubMed] [Google Scholar]
  10. Sherr C. J., Rettenmier C. W., Sacca R., Roussel M. F., Look A. T., Stanley E. R. The c-fms proto-oncogene product is related to the receptor for the mononuclear phagocyte growth factor, CSF-1. Cell. 1985 Jul;41(3):665–676. doi: 10.1016/s0092-8674(85)80047-7. [DOI] [PubMed] [Google Scholar]
  11. Shibuya M., Hanafusa H. Nucleotide sequence of Fujinami sarcoma virus: evolutionary relationship of its transforming gene with transforming genes of other sarcoma viruses. Cell. 1982 Oct;30(3):787–795. doi: 10.1016/0092-8674(82)90283-5. [DOI] [PubMed] [Google Scholar]
  12. Sugano S., Hanafusa H. Phosphatidylinositol kinase activity in virus-transformed and nontransformed cells. Mol Cell Biol. 1985 Sep;5(9):2399–2404. doi: 10.1128/mcb.5.9.2399. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Ullrich A., Bell J. R., Chen E. Y., Herrera R., Petruzzelli L. M., Dull T. J., Gray A., Coussens L., Liao Y. C., Tsubokawa M. Human insulin receptor and its relationship to the tyrosine kinase family of oncogenes. 1985 Feb 28-Mar 6Nature. 313(6005):756–761. doi: 10.1038/313756a0. [DOI] [PubMed] [Google Scholar]
  14. Wang L. H., Hanafusa H., Notter M. F., Balduzzi P. C. Genetic structure and transforming sequence of avian sarcoma virus UR2. J Virol. 1982 Mar;41(3):833–841. doi: 10.1128/jvi.41.3.833-841.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Yamamoto T., Nishida T., Miyajima N., Kawai S., Ooi T., Toyoshima K. The erbB gene of avian erythroblastosis virus is a member of the src gene family. Cell. 1983 Nov;35(1):71–78. doi: 10.1016/0092-8674(83)90209-x. [DOI] [PubMed] [Google Scholar]

Articles from Journal of Virology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES