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. 1987 Jun;61(6):1893–1900. doi: 10.1128/jvi.61.6.1893-1900.1987

Morphf mutants of Rous sarcoma virus: nucleotide sequencing analysis suggests that a class of morphf mutants was generated through splicing of a cryptic intron.

S K Anderson, D J Fujita
PMCID: PMC254195  PMID: 3033320

Abstract

The nature of the lesions involved in producing the fusiform phenotype of three mutants (WO101, WO201, and tsST529) of the Schmidt-Ruppin A strain of Rous sarcoma virus (RSV) was determined by molecular cloning and DNA sequencing. WO101 and WO201 contained an in-frame deletion of the v-src region coding for amino acids 116 to 140 of p60v-src. The deleted segment was flanked by consensus splice donor and acceptor sequences and contained an appropriately positioned branchpoint acceptor consensus sequence, suggesting that the deletion occurred through an aberrant RNA splicing event. S1 mapping experiments performed on RNA isolated from chicken cells infected with molecularly cloned wild-type RSV DNA suggested that the splice acceptor involved in the generation of this deletion was utilized at a low frequency (less than 1.0%) in wild-type RSV-infected cells. These results suggested that stable mutations may have arisen in the coding sequence of a eucaryotic viral transforming gene as a result of a probable aberrant RNA splicing event followed by reverse transcription into DNA. ST529 was found to harbor the same deletion present in WO101 and WO201 but also contained a point mutation which resulted in the substitution of lysine for glutamic acid at position 93. This change and the resulting large change in local charge were presumably required for the temperature-sensitive transformation phenotype of ST529. These results, together with other known deletions that produce fusiform mutants, suggested that a region within the amino-terminal one-third coding region of the src gene contributed to a structural domain of p60v-src that was important for controlling some morphological parameters of transformation in cells infected with RSV.

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Selected References

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

  1. Anderson D. D., Beckmann R. P., Harms E. H., Nakamura K., Weber M. J. Biological properties of "partial" transformation mutants of Rous sarcoma virus and characterization of their pp60src kinase. J Virol. 1981 Jan;37(1):445–458. doi: 10.1128/jvi.37.1.445-458.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Anderson S. K., Gibbs C. P., Tanaka A., Kung H. J., Fujita D. J. Human cellular src gene: nucleotide sequence and derived amino acid sequence of the region coding for the carboxy-terminal two-thirds of pp60c-src. Mol Cell Biol. 1985 May;5(5):1122–1129. doi: 10.1128/mcb.5.5.1122. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Benton W. D., Davis R. W. Screening lambdagt recombinant clones by hybridization to single plaques in situ. Science. 1977 Apr 8;196(4286):180–182. doi: 10.1126/science.322279. [DOI] [PubMed] [Google Scholar]
  4. Berk A. J., Sharp P. A. Sizing and mapping of early adenovirus mRNAs by gel electrophoresis of S1 endonuclease-digested hybrids. Cell. 1977 Nov;12(3):721–732. doi: 10.1016/0092-8674(77)90272-0. [DOI] [PubMed] [Google Scholar]
  5. Bolen J. B., Rosen N., Israel M. A. Increased pp60c-src tyrosyl kinase activity in human neuroblastomas is associated with amino-terminal tyrosine phosphorylation of the src gene product. Proc Natl Acad Sci U S A. 1985 Nov;82(21):7275–7279. doi: 10.1073/pnas.82.21.7275. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Bryant D., Parsons J. T. Site-directed mutagenesis of the src gene of Rous sarcoma virus: construction and characterization of a deletion mutant temperature sensitive for transformation. J Virol. 1982 Nov;44(2):683–691. doi: 10.1128/jvi.44.2.683-691.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. 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]
  8. Collett M. S., Wells S. K., Purchio A. F. Physical modification of purified Rous sarcoma virus pp60v-src protein after incubation with ATP/Mg2+. Virology. 1983 Jul 30;128(2):285–297. doi: 10.1016/0042-6822(83)90256-8. [DOI] [PubMed] [Google Scholar]
  9. Cross F. R., Garber E. A., Hanafusa H. N-terminal deletions in Rous sarcoma virus p60src: effects on tyrosine kinase and biological activities and on recombination in tissue culture with the cellular src gene. Mol Cell Biol. 1985 Oct;5(10):2789–2795. doi: 10.1128/mcb.5.10.2789. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Cross F. R., Garber E. A., Pellman D., Hanafusa H. A short sequence in the p60src N terminus is required for p60src myristylation and membrane association and for cell transformation. Mol Cell Biol. 1984 Sep;4(9):1834–1842. doi: 10.1128/mcb.4.9.1834. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. 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]
  12. Czernilofsky A. P., Levinson A. D., Varmus H. E., Bishop J. M., Tischer E., Goodman H. Corrections to the nucleotide sequence of the src gene of Rous sarcoma virus. Nature. 1983 Feb 24;301(5902):736–738. doi: 10.1038/301736b0. [DOI] [PubMed] [Google Scholar]
  13. DeLorbe W. J., Luciw P. A., Goodman H. M., Varmus H. E., Bishop J. M. Molecular cloning and characterization of avian sarcoma virus circular DNA molecules. J Virol. 1980 Oct;36(1):50–61. doi: 10.1128/jvi.36.1.50-61.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Fincham V. J., Wyke J. A. Localization of temperature-sensitive transformation mutations and back mutations in the Rous sarcoma virus src gene. J Virol. 1986 May;58(2):694–699. doi: 10.1128/jvi.58.2.694-699.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Fujita D. J., Bechberger J., Nedic I. Four Rous sarcoma virus mutants which affect transformed cell morphology exhibit altered src gene products. Virology. 1981 Oct 15;114(1):256–260. doi: 10.1016/0042-6822(81)90272-5. [DOI] [PubMed] [Google Scholar]
  16. Fujita D. J., Boschek C. B., Ziemiecki A., Friis R. R. An avian sarcoma virus mutant which produces an aberrant transformation affecting cell morphology. Virology. 1981 May;111(1):223–238. doi: 10.1016/0042-6822(81)90667-x. [DOI] [PubMed] [Google Scholar]
  17. Gerke V., Weber K. Identity of p36K phosphorylated upon Rous sarcoma virus transformation with a protein purified from brush borders; calcium-dependent binding to non-erythroid spectrin and F-actin. EMBO J. 1984 Jan;3(1):227–233. doi: 10.1002/j.1460-2075.1984.tb01789.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Hirt B. Selective extraction of polyoma DNA from infected mouse cell cultures. J Mol Biol. 1967 Jun 14;26(2):365–369. doi: 10.1016/0022-2836(67)90307-5. [DOI] [PubMed] [Google Scholar]
  19. Hughes S., Mellstrom K., Kosik E., Tamanoi F., Brugge J. Mutation of a termination codon affects src initiation. Mol Cell Biol. 1984 Sep;4(9):1738–1746. doi: 10.1128/mcb.4.9.1738. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. 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]
  21. Kawai S., Hanafusa H. The effects of reciprocal changes in temperature on the transformed state of cells infected with a rous sarcoma virus mutant. Virology. 1971 Nov;46(2):470–479. doi: 10.1016/0042-6822(71)90047-x. [DOI] [PubMed] [Google Scholar]
  22. Kitamura N., Yoshida M. Small deletion in src of Rous sarcoma virus modifying transformation phenotypes: identification of 207-nucleotide deletion and its smaller product with protein kinase activity. J Virol. 1983 Jun;46(3):985–992. doi: 10.1128/jvi.46.3.985-992.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Leder P., Tiemeier D., Enquist L. EK2 derivatives of bacteriophage lambda useful in the cloning of DNA from higher organisms: the lambdagtWES system. Science. 1977 Apr 8;196(4286):175–177. doi: 10.1126/science.322278. [DOI] [PubMed] [Google Scholar]
  24. Levinson A. D., Courtneidge S. A., Bishop J. M. Structural and functional domains of the Rous sarcoma virus transforming protein (pp60src). Proc Natl Acad Sci U S A. 1981 Mar;78(3):1624–1628. doi: 10.1073/pnas.78.3.1624. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. 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]
  26. Mardon G., Varmus H. E. Frameshift and intragenic suppressor mutations in a Rous sarcoma provirus suggest src encodes two proteins. Cell. 1983 Mar;32(3):871–879. doi: 10.1016/0092-8674(83)90072-7. [DOI] [PubMed] [Google Scholar]
  27. Martin G. S. Rous sarcoma virus: a function required for the maintenance of the transformed state. Nature. 1970 Sep 5;227(5262):1021–1023. doi: 10.1038/2271021a0. [DOI] [PubMed] [Google Scholar]
  28. Mayer B. J., Jove R., Krane J. F., Poirier F., Calothy G., Hanafusa H. Genetic lesions involved in temperature sensitivity of the src gene products of four Rous sarcoma virus mutants. J Virol. 1986 Dec;60(3):858–867. doi: 10.1128/jvi.60.3.858-867.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Melton D. A., Krieg P. A., Rebagliati M. R., Maniatis T., Zinn K., Green M. R. Efficient in vitro synthesis of biologically active RNA and RNA hybridization probes from plasmids containing a bacteriophage SP6 promoter. Nucleic Acids Res. 1984 Sep 25;12(18):7035–7056. doi: 10.1093/nar/12.18.7035. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Messing J. New M13 vectors for cloning. Methods Enzymol. 1983;101:20–78. doi: 10.1016/0076-6879(83)01005-8. [DOI] [PubMed] [Google Scholar]
  31. Nishizawa M., Mayer B. J., Takeya T., Yamamoto T., Toyoshima K., Hanafusa H., Kawai S. Two independent mutations are required for temperature-sensitive cell transformation by a Rous sarcoma virus temperature-sensitive mutant. J Virol. 1985 Dec;56(3):743–749. doi: 10.1128/jvi.56.3.743-749.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Oppermann H., Levinson A. D., Varmus H. E. The structure and protein kinase activity of proteins encoded by nonconditional mutants and back mutants in the sec gene of avian sarcoma virus. Virology. 1981 Jan 15;108(1):47–70. doi: 10.1016/0042-6822(81)90526-2. [DOI] [PubMed] [Google Scholar]
  33. Patschinsky T., Hunter T., Esch F. S., Cooper J. A., Sefton B. M. Analysis of the sequence of amino acids surrounding sites of tyrosine phosphorylation. Proc Natl Acad Sci U S A. 1982 Feb;79(4):973–977. doi: 10.1073/pnas.79.4.973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Purchio A. F., Wells S. K., Collett M. S. Increase in the phosphotransferase specific activity of purified Rous sarcoma virus pp60v-src protein after incubation with ATP plus Mg2+. Mol Cell Biol. 1983 Sep;3(9):1589–1597. doi: 10.1128/mcb.3.9.1589. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Reed R., Maniatis T. Intron sequences involved in lariat formation during pre-mRNA splicing. Cell. 1985 May;41(1):95–105. doi: 10.1016/0092-8674(85)90064-9. [DOI] [PubMed] [Google Scholar]
  36. Ridgway A. A., Swift R. A., Kung H. J., Fujita D. J. In vitro transcription analysis of the viral promoter involved in c-myc activation in chicken B lymphomas: detection and mapping of two RNA initiation sites within the reticuloendotheliosis virus long terminal repeat. J Virol. 1985 Apr;54(1):161–170. doi: 10.1128/jvi.54.1.161-170.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. 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]
  38. Sharp P. A. On the origin of RNA splicing and introns. Cell. 1985 Sep;42(2):397–400. doi: 10.1016/0092-8674(85)90092-3. [DOI] [PubMed] [Google Scholar]
  39. Sharp P. A. Speculations on RNA splicing. Cell. 1981 Mar;23(3):643–646. doi: 10.1016/0092-8674(81)90425-6. [DOI] [PubMed] [Google Scholar]
  40. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  41. Stoker A. W., Enrietto P. J., Wyke J. A. Functional domains of the pp60v-src protein as revealed by analysis of temperature-sensitive Rous sarcoma virus mutants. Mol Cell Biol. 1984 Aug;4(8):1508–1514. doi: 10.1128/mcb.4.8.1508. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. Swanstrom R., Varmus H. E., Bishop J. M. Nucleotide sequence of the 5' noncoding region and part of the gag gene of Rous sarcoma virus. J Virol. 1982 Feb;41(2):535–541. doi: 10.1128/jvi.41.2.535-541.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. TEMIN H. M. The control of cellular morphology in embryonic cells infected with rous sarcoma virus in vitro. Virology. 1960 Feb;10:182–197. doi: 10.1016/0042-6822(60)90038-6. [DOI] [PubMed] [Google Scholar]
  44. Takeya T., Hanafusa H. DNA sequence of the viral and cellular src gene of chickens. II. Comparison of the src genes of two strains of avian sarcoma virus and of the cellular homolog. J Virol. 1982 Oct;44(1):12–18. doi: 10.1128/jvi.44.1.12-18.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  45. Takeya T., Hanafusa H. Structure and sequence of the cellular gene homologous to the RSV src gene and the mechanism for generating the transforming virus. Cell. 1983 Mar;32(3):881–890. doi: 10.1016/0092-8674(83)90073-9. [DOI] [PubMed] [Google Scholar]
  46. Toyoshima K., Vogt P. K. Temperature sensitive mutants of an avian sarcoma virus. Virology. 1969 Dec;39(4):930–931. doi: 10.1016/0042-6822(69)90030-0. [DOI] [PubMed] [Google Scholar]
  47. 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]
  48. Yonemoto W., Jarvis-Morar M., Brugge J. S., Bolen J. B., Israel M. A. Tyrosine phosphorylation within the amino-terminal domain of pp60c-src molecules associated with polyoma virus middle-sized tumor antigen. Proc Natl Acad Sci U S A. 1985 Jul;82(14):4568–4572. doi: 10.1073/pnas.82.14.4568. [DOI] [PMC free article] [PubMed] [Google Scholar]
  49. Yoshii S., Vogt P. K. A mutant of rous sarcoma virus (type O) causing fusiform cell transformation. Proc Soc Exp Biol Med. 1970 Nov;135(2):297–301. doi: 10.3181/00379727-135-35039. [DOI] [PubMed] [Google Scholar]

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