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. 1981 Sep;39(3):920–934. doi: 10.1128/jvi.39.3.920-934.1981

Generation of transforming viruses in cultures of chicken fibroblasts infected with an avian leukosis virus.

E Stavnezer, D S Gerhard, R C Binari, I Balazs
PMCID: PMC171326  PMID: 6169846

Abstract

During serial passages of an avian leukosis virus (the transformation-defective, src deletion mutant of Bratislava 77 avian sarcoma virus, designated tdB77) in chicken embryo fibroblasts, viruses which transformed chicken embryo fibroblasts in vitro emerged. Chicken embryo fibroblasts infected with these viruses (SK770 and Sk780) had a distinctive morphology, formed foci in monolayer cultures, and grew independent of anchorage in semisolid agar. Bone marrow cells were not transformed by these viruses. Another virus (SK790) with similar properties emerged during serial subcultures of chicken embryo fibroblasts after a single infection with tdB77. The 50S to RNAs isolated from these viruses contained a tdB77-sized genome (7.6 kilobases), 8.7- and 5.7-kilobase RNAs, and either a 4.1-kilobase RNA or a 4.6-kilobase RNA. These RNAs did not hybridize with cDNA's representing the src, erb, mac, and myb genes of avian acute transforming viruses. Cells transformed by any one of the Sk viruses (SK770, SK780, or SK790) synthesized two novel gag-related polyproteins having molecular weights of 110,000 (p110) and 125,000 (p125). We investigated the compositions of these proteins with monospecific antiviral protein sera. We found that p110 was a gag-pol fusion protein which contained antigenic determinants, leaving 49,000 daltons which was antigenically unrelated to the structural and replicative proteins of avian leukosis viruses. An analysis of the SK viral RNAs with specific DNA probes indicated that the 5.7-kilobase RNA contained gag sequences but lacked pol sequences and, therefore, probably encoded p125. The transforming ability, the deleted genome, and the induced polyproteins of the SK viruses were reminiscent of the properties of several replication-defective acute transforming viruses.

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Selected References

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

  1. Alwine J. C., Kemp D. J., Stark G. R. Method for detection of specific RNAs in agarose gels by transfer to diazobenzyloxymethyl-paper and hybridization with DNA probes. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5350–5354. doi: 10.1073/pnas.74.12.5350. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Barbacid M., Stephenson J. R., Aaronson S. A. gag Gene of mammalian type-C RNA tumour viruses. Nature. 1976 Aug 12;262(5569):554–559. doi: 10.1038/262554a0. [DOI] [PubMed] [Google Scholar]
  3. Bister K., Hayman M. J., Vogt P. K. Defectiveness of avian myelocytomatosis virus MC29: isolation of long-term nonproducer cultures and analysis of virus-specific polypeptide synthesis. Virology. 1977 Oct 15;82(2):431–448. doi: 10.1016/0042-6822(77)90017-4. [DOI] [PubMed] [Google Scholar]
  4. Breitman M. L., Neil J. C., Moscovici C., Vogt P. K. The pathogenicity and defectiveness of PRCII: a new type of avian sarcoma virus. Virology. 1981 Jan 15;108(1):1–12. doi: 10.1016/0042-6822(81)90522-5. [DOI] [PubMed] [Google Scholar]
  5. Brison O., Cambon P. A simple and efficient method to remove ribonuclease contamination from pancreatic deoxyribonuclease preparations. Anal Biochem. 1976 Oct;75(2):402–409. doi: 10.1016/0003-2697(76)90094-4. [DOI] [PubMed] [Google Scholar]
  6. 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]
  7. Czernilofsky A. P., Levinson A. D., Varmus H. E., Bishop J. M., Tischer E., Goodman H. M. Nucleotide sequence of an avian sarcoma virus oncogene (src) and proposed amino acid sequence for gene product. Nature. 1980 Sep 18;287(5779):198–203. doi: 10.1038/287198a0. [DOI] [PubMed] [Google Scholar]
  8. Duesberg P. H., Bister K., Vogt P. K. The RNA of avian acute leukemia virus MC29. Proc Natl Acad Sci U S A. 1977 Oct;74(10):4320–4324. doi: 10.1073/pnas.74.10.4320. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Duesberg P. H. Transforming genes of retroviruses. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 1):13–29. doi: 10.1101/sqb.1980.044.01.005. [DOI] [PubMed] [Google Scholar]
  10. Eisenman R., Shaikh R., Mason W. S. Identification of an avian oncovirus polyprotein in uninfected chick cells. Cell. 1978 May;14(1):89–104. doi: 10.1016/0092-8674(78)90304-5. [DOI] [PubMed] [Google Scholar]
  11. 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]
  12. Graf T. Two types of target cells for transformation with avian myelocytomatosis virus. Virology. 1973 Aug;54(2):398–413. doi: 10.1016/0042-6822(73)90152-9. [DOI] [PubMed] [Google Scholar]
  13. Halpern C. C., Hayward W. S., Hanafusa H. Characterization of some isolates of newly recovered avian sarcoma virus. J Virol. 1979 Jan;29(1):91–101. doi: 10.1128/jvi.29.1.91-101.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Hanafusa H., Halpern C. C., Buchhagen D. L., Kawai S. Recovery of avian sarcoma virus from tumors induced by transformation-defective mutants. J Exp Med. 1977 Dec 1;146(6):1735–1747. doi: 10.1084/jem.146.6.1735. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Hanafusa T., Wang L. H., Anderson S. M., Karess R. E., Hayward W. S., Hanafusa H. Characterization of the transforming gene of Fujinami sarcoma virus. Proc Natl Acad Sci U S A. 1980 May;77(5):3009–3013. doi: 10.1073/pnas.77.5.3009. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Highfield P. E., Rafield L. F., Gilmer T. M., Parsons J. T. Molecular cloning of avian sarcoma virus closed circular DNA: structural and biological characterization of three recombinant clones. J Virol. 1980 Oct;36(1):271–279. doi: 10.1128/jvi.36.1.271-279.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Hsu T. W., Sabran J. L., Mark G. E., Guntaka R. V., Taylor J. M. Analysis of unintegrated avian RNA tumor virus double-stranded DNA intermediates. J Virol. 1978 Dec;28(3):810–818. doi: 10.1128/jvi.28.3.810-818.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. 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]
  19. 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]
  20. 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]
  21. Lai M. M., Duesberg P. H., Horst J., Vogt P. K. Avian tumor virus RNA: a comparison of three sarcoma viruses and their transformation-defective derivatives by oligonucleotide fingerprinting and DNA-RNA hybridization. Proc Natl Acad Sci U S A. 1973 Aug;70(8):2266–2270. doi: 10.1073/pnas.70.8.2266. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. 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]
  23. Lee W. H., Bister K., Pawson A., Robins T., Moscovici C., Duesberg P. H. Fujinami sarcoma virus: an avian RNA tumor virus with a unique transforming gene. Proc Natl Acad Sci U S A. 1980 Apr;77(4):2018–2022. doi: 10.1073/pnas.77.4.2018. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. 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]
  25. McMaster G. K., Carmichael G. G. Analysis of single- and double-stranded nucleic acids on polyacrylamide and agarose gels by using glyoxal and acridine orange. Proc Natl Acad Sci U S A. 1977 Nov;74(11):4835–4838. doi: 10.1073/pnas.74.11.4835. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Morris V. L., Kozak C., Cohen J. C., Shank P. R., Jolicoeur P., Ruddle F., Varmus H. E. Endogenous mouse mammary tumor virus DNA is distributed among multiple mouse chromosomes. Virology. 1979 Jan 15;92(1):46–55. doi: 10.1016/0042-6822(79)90213-7. [DOI] [PubMed] [Google Scholar]
  27. 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]
  28. Rapp U. R., Todaro G. J. Generation of oncogenic mouse type C viruses: in vitro selection of carcinoma-inducing variants. Proc Natl Acad Sci U S A. 1980 Jan;77(1):624–628. doi: 10.1073/pnas.77.1.624. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Rasheed S., Gardner M. B., Huebner R. J. In vitro isolation of stable rat sarcoma viruses. Proc Natl Acad Sci U S A. 1978 Jun;75(6):2972–2976. doi: 10.1073/pnas.75.6.2972. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Rettenmier C. W., Karess R. E., Anderson S. M., Hanafusa H. Tryptic peptide analysis of avian oncovirus gag and pol gene products. J Virol. 1979 Oct;32(1):102–113. doi: 10.1128/jvi.32.1.102-113.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Rigby P. W., Dieckmann M., Rhodes C., Berg P. Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I. J Mol Biol. 1977 Jun 15;113(1):237–251. doi: 10.1016/0022-2836(77)90052-3. [DOI] [PubMed] [Google Scholar]
  32. Roussel M., Saule S., Lagrou C., Rommens C., Beug H., Graf T., Stehelin D. Three new types of viral oncogene of cellular origin specific for haematopoietic cell transformation. Nature. 1979 Oct 11;281(5731):452–455. doi: 10.1038/281452a0. [DOI] [PubMed] [Google Scholar]
  33. Shank P. R., Hughes S. H., Kung H. J., Majors J. E., Quintrell N., Guntaka R. V., Bishop J. M., Varmus H. E. Mapping unintegrated avian sarcoma virus DNA: termini of linear DNA bear 300 nucleotides present once or twice in two species of circular DNA. Cell. 1978 Dec;15(4):1383–1395. doi: 10.1016/0092-8674(78)90063-6. [DOI] [PubMed] [Google Scholar]
  34. Shealy D. J., Mosser A. G., Rueckert R. R. Novel p19-related protein in Rous-associated virus type 61: implications for avian gag gene order. J Virol. 1980 May;34(2):431–437. doi: 10.1128/jvi.34.2.431-437.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Sheiness D., Bishop J. M. DNA and RNA from uninfected vertebrate cells contain nucleotide sequences related to the putative transforming gene of avian myelocytomatosis virus. J Virol. 1979 Aug;31(2):514–521. doi: 10.1128/jvi.31.2.514-521.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. Shibuya M., Hanafusa T., Hanafusa H., Stephenson J. R. Homology exists among the transforming sequences of avian and feline sarcoma viruses. Proc Natl Acad Sci U S A. 1980 Nov;77(11):6536–6540. doi: 10.1073/pnas.77.11.6536. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Spector D. H., Smith K., Padgett T., McCombe P., Roulland-Dussoix D., Moscovici C., Varmus H. E., Bishop J. M. Uninfected avian cells contain RNA related to the transforming gene of avian sarcoma viruses. Cell. 1978 Feb;13(2):371–379. doi: 10.1016/0092-8674(78)90205-2. [DOI] [PubMed] [Google Scholar]
  38. Stavnezer J., Bishop J. M. Synthesis and isolation of DNA complementary to nucleotide sequences encoding the variable region of immunoglobulin kappa chain. Biochemistry. 1977 Sep 20;16(19):4225–4232. doi: 10.1021/bi00638a015. [DOI] [PubMed] [Google Scholar]
  39. Stehelin D., Guntaka R. V., Varmus H. E., Bishop J. M. Purification of DNA complementary to nucleotide sequences required for neoplastic transformation of fibroblasts by avian sarcoma viruses. J Mol Biol. 1976 Mar 5;101(3):349–365. doi: 10.1016/0022-2836(76)90152-2. [DOI] [PubMed] [Google Scholar]
  40. Stehelin D., Varmus H. E., Bishop J. M., Vogt P. K. DNA related to the transforming gene(s) of avian sarcoma viruses is present in normal avian DNA. Nature. 1976 Mar 11;260(5547):170–173. doi: 10.1038/260170a0. [DOI] [PubMed] [Google Scholar]
  41. Stephenson J. R., Van de Ven W. J., Khan A. S., Reynolds F. H., Jr Mammalian RNA type-C transforming viruses: characterization of virus-coded polyproteins containing phosphorylated components with possible transforming functions. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 2):865–874. doi: 10.1101/sqb.1980.044.01.093. [DOI] [PubMed] [Google Scholar]
  42. TEMIN H. M., RUBIN H. Characteristics of an assay for Rous sarcoma virus and Rous sarcoma cells in tissue culture. Virology. 1958 Dec;6(3):669–688. doi: 10.1016/0042-6822(58)90114-4. [DOI] [PubMed] [Google Scholar]
  43. Taylor J. M., Illmensee R., Summers J. Efficeint transcription of RNA into DNA by avian sarcoma virus polymerase. Biochim Biophys Acta. 1976 Sep 6;442(3):324–330. doi: 10.1016/0005-2787(76)90307-5. [DOI] [PubMed] [Google Scholar]
  44. Vogt P. K. Spontaneous segregation of nontransforming viruses from cloned sarcoma viruses. Virology. 1971 Dec;46(3):939–946. doi: 10.1016/0042-6822(71)90092-4. [DOI] [PubMed] [Google Scholar]
  45. Vogt V. M., Eisenman R., Diggelmann H. Generation of avian myeloblastosis virus structural proteins by proteolytic cleavage of a precursor polypeptide. J Mol Biol. 1975 Aug 15;96(3):471–493. doi: 10.1016/0022-2836(75)90174-6. [DOI] [PubMed] [Google Scholar]
  46. Wang L. H., Halpern C. C., Nadel M., Hanafusa H. Recombination between viral and cellular sequences generates transforming sarcoma virus. Proc Natl Acad Sci U S A. 1978 Dec;75(12):5812–5816. doi: 10.1073/pnas.75.12.5812. [DOI] [PMC free article] [PubMed] [Google Scholar]
  47. Yoshida M., Ikawa Y. Induction of some transformation-related properties by a transformation-defective mutant of avian sarcoma virus. Virology. 1977 Dec;83(2):444–448. doi: 10.1016/0042-6822(77)90192-1. [DOI] [PubMed] [Google Scholar]
  48. Yoshida M., Kawai S., Toyoshima K. Unifected avian cells contain structurally unrelated progenitors of viral sarcoma genes. Nature. 1980 Oct 16;287(5783):653–654. doi: 10.1038/287653a0. [DOI] [PubMed] [Google Scholar]

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