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. 1993 Jun;67(6):3489–3496. doi: 10.1128/jvi.67.6.3489-3496.1993

Mutational analysis of the envelope gene of Moloney murine leukemia virus.

K D Gray 1, M J Roth 1
PMCID: PMC237695  PMID: 7684467

Abstract

The env gene products of Moloney murine leukemia virus are required for binding and entry of the virus into the target cell. Thirty-three linker insertion mutations were constructed throughout the env gene of Moloney murine leukemia virus. Twenty of the mutations were located in the surface protein (SU), and the remaining thirteen were located in the transmembrane protein (TM). The viability of the viruses containing these env gene mutations was determined by performing transient transfections and screening for the release of reverse transcriptase. Eleven viable mutants were isolated, nine in SU and two in TM. Three of the viable mutants were temperature sensitive. Four of the viable mutants were clustered in the carboxy terminus of SU. The env gene products of transfected cell lines which produced viable virus were analyzed. Our results indicated two regions of SU important for the stability of the SU/TM heteropolymer and one region important for the interaction of the env gene products with the viral core.

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Selected References

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

  1. Albritton L. M., Tseng L., Scadden D., Cunningham J. M. A putative murine ecotropic retrovirus receptor gene encodes a multiple membrane-spanning protein and confers susceptibility to virus infection. Cell. 1989 May 19;57(4):659–666. doi: 10.1016/0092-8674(89)90134-7. [DOI] [PubMed] [Google Scholar]
  2. Battini J. L., Heard J. M., Danos O. Receptor choice determinants in the envelope glycoproteins of amphotropic, xenotropic, and polytropic murine leukemia viruses. J Virol. 1992 Mar;66(3):1468–1475. doi: 10.1128/jvi.66.3.1468-1475.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Brody B. A., Hunter E. Mutations within the env gene of Mason-Pfizer monkey virus: effects on protein transport and SU-TM association. J Virol. 1992 Jun;66(6):3466–3475. doi: 10.1128/jvi.66.6.3466-3475.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Brody B. A., Rhee S. S., Sommerfelt M. A., Hunter E. A viral protease-mediated cleavage of the transmembrane glycoprotein of Mason-Pfizer monkey virus can be suppressed by mutations within the matrix protein. Proc Natl Acad Sci U S A. 1992 Apr 15;89(8):3443–3447. doi: 10.1073/pnas.89.8.3443. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Colicelli J., Goff S. P. Sequence and spacing requirements of a retrovirus integration site. J Mol Biol. 1988 Jan 5;199(1):47–59. doi: 10.1016/0022-2836(88)90378-6. [DOI] [PubMed] [Google Scholar]
  6. Colicelli J., Lobel L. I., Goff S. P. A temperature-sensitive mutation constructed by "linker insertion" mutagenesis. Mol Gen Genet. 1985;199(3):537–539. doi: 10.1007/BF00330771. [DOI] [PubMed] [Google Scholar]
  7. Crawford S., Goff S. P. A deletion mutation in the 5' part of the pol gene of Moloney murine leukemia virus blocks proteolytic processing of the gag and pol polyproteins. J Virol. 1985 Mar;53(3):899–907. doi: 10.1128/jvi.53.3.899-907.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Dubay J. W., Roberts S. J., Hahn B. H., Hunter E. Truncation of the human immunodeficiency virus type 1 transmembrane glycoprotein cytoplasmic domain blocks virus infectivity. J Virol. 1992 Nov;66(11):6616–6625. doi: 10.1128/jvi.66.11.6616-6625.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Elder J. H., Mullins J. I. Nucleotide sequence of the envelope gene of Gardner-Arnstein feline leukemia virus B reveals unique sequence homologies with a murine mink cell focus-forming virus. J Virol. 1983 Jun;46(3):871–880. doi: 10.1128/jvi.46.3.871-880.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Felkner R. H., Roth M. J. Mutational analysis of the N-linked glycosylation sites of the SU envelope protein of Moloney murine leukemia virus. J Virol. 1992 Jul;66(7):4258–4264. doi: 10.1128/jvi.66.7.4258-4264.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Gabuzda D. H., Lever A., Terwilliger E., Sodroski J. Effects of deletions in the cytoplasmic domain on biological functions of human immunodeficiency virus type 1 envelope glycoproteins. J Virol. 1992 Jun;66(6):3306–3315. doi: 10.1128/jvi.66.6.3306-3315.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Goff S., Traktman P., Baltimore D. Isolation and properties of Moloney murine leukemia virus mutants: use of a rapid assay for release of virion reverse transcriptase. J Virol. 1981 Apr;38(1):239–248. doi: 10.1128/jvi.38.1.239-248.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Granowitz C., Colicelli J., Goff S. P. Analysis of mutations in the envelope gene of Moloney murine leukemia virus: separation of infectivity from superinfection resistance. Virology. 1991 Aug;183(2):545–554. doi: 10.1016/0042-6822(91)90983-i. [DOI] [PubMed] [Google Scholar]
  14. Green N., Shinnick T. M., Witte O., Ponticelli A., Sutcliffe J. G., Lerner R. A. Sequence-specific antibodies show that maturation of Moloney leukemia virus envelope polyprotein involves removal of a COOH-terminal peptide. Proc Natl Acad Sci U S A. 1981 Oct;78(10):6023–6027. doi: 10.1073/pnas.78.10.6023. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Heard J. M., Danos O. An amino-terminal fragment of the Friend murine leukemia virus envelope glycoprotein binds the ecotropic receptor. J Virol. 1991 Aug;65(8):4026–4032. doi: 10.1128/jvi.65.8.4026-4032.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Helseth E., Olshevsky U., Furman C., Sodroski J. Human immunodeficiency virus type 1 gp120 envelope glycoprotein regions important for association with the gp41 transmembrane glycoprotein. J Virol. 1991 Apr;65(4):2119–2123. doi: 10.1128/jvi.65.4.2119-2123.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. 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]
  18. Hunter E., Swanstrom R. Retrovirus envelope glycoproteins. Curr Top Microbiol Immunol. 1990;157:187–253. doi: 10.1007/978-3-642-75218-6_7. [DOI] [PubMed] [Google Scholar]
  19. Kielian M., Jungerwirth S. Mechanisms of enveloped virus entry into cells. Mol Biol Med. 1990 Feb;7(1):17–31. [PubMed] [Google Scholar]
  20. Kim J. W., Closs E. I., Albritton L. M., Cunningham J. M. Transport of cationic amino acids by the mouse ecotropic retrovirus receptor. Nature. 1991 Aug 22;352(6337):725–728. doi: 10.1038/352725a0. [DOI] [PubMed] [Google Scholar]
  21. Koch W., Zimmermann W., Oliff A., Friedrich R. Molecular analysis of the envelope gene and long terminal repeat of Friend mink cell focus-inducing virus: implications for the functions of these sequences. J Virol. 1984 Mar;49(3):828–840. doi: 10.1128/jvi.49.3.828-840.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. 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]
  23. Lobel L. I., Goff S. P. Construction of mutants of Moloney murine leukemia virus by suppressor-linker insertional mutagenesis: positions of viable insertion mutations. Proc Natl Acad Sci U S A. 1984 Jul;81(13):4149–4153. doi: 10.1073/pnas.81.13.4149. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. McCutchan J. H., Pagano J. S. Enchancement of the infectivity of simian virus 40 deoxyribonucleic acid with diethylaminoethyl-dextran. J Natl Cancer Inst. 1968 Aug;41(2):351–357. [PubMed] [Google Scholar]
  25. O'Neill R. R., Buckler C. E., Theodore T. S., Martin M. A., Repaske R. Envelope and long terminal repeat sequences of a cloned infectious NZB xenotropic murine leukemia virus. J Virol. 1985 Jan;53(1):100–106. doi: 10.1128/jvi.53.1.100-106.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. Ott D., Friedrich R., Rein A. Sequence analysis of amphotropic and 10A1 murine leukemia viruses: close relationship to mink cell focus-inducing viruses. J Virol. 1990 Feb;64(2):757–766. doi: 10.1128/jvi.64.2.757-766.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Ott D., Rein A. Basis for receptor specificity of nonecotropic murine leukemia virus surface glycoprotein gp70SU. J Virol. 1992 Aug;66(8):4632–4638. doi: 10.1128/jvi.66.8.4632-4638.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Perez L. G., Davis G. L., Hunter E. Mutants of the Rous sarcoma virus envelope glycoprotein that lack the transmembrane anchor and cytoplasmic domains: analysis of intracellular transport and assembly into virions. J Virol. 1987 Oct;61(10):2981–2988. doi: 10.1128/jvi.61.10.2981-2988.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Pinter A., Honnen W. J., Tung J. S., O'Donnell P. V., Hämmerling U. Structural domains of endogenous murine leukemia virus gp70s containing specific antigenic determinants defined by monoclonal antibodies. Virology. 1982 Jan 30;116(2):499–516. doi: 10.1016/0042-6822(82)90143-x. [DOI] [PubMed] [Google Scholar]
  30. Rein A. Interference grouping of murine leukemia viruses: a distinct receptor for the MCF-recombinant viruses in mouse cells. Virology. 1982 Jul 15;120(1):251–257. doi: 10.1016/0042-6822(82)90024-1. [DOI] [PubMed] [Google Scholar]
  31. Roth M. J. Mutational analysis of the carboxyl terminus of the Moloney murine leukemia virus integration protein. J Virol. 1991 Apr;65(4):2141–2145. doi: 10.1128/jvi.65.4.2141-2145.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Rowe W. P., Pugh W. E., Hartley J. W. Plaque assay techniques for murine leukemia viruses. Virology. 1970 Dec;42(4):1136–1139. doi: 10.1016/0042-6822(70)90362-4. [DOI] [PubMed] [Google Scholar]
  33. Shinnick T. M., Lerner R. A., Sutcliffe J. G. Nucleotide sequence of Moloney murine leukaemia virus. Nature. 1981 Oct 15;293(5833):543–548. doi: 10.1038/293543a0. [DOI] [PubMed] [Google Scholar]
  34. Stoye J. P., Coffin J. M. The four classes of endogenous murine leukemia virus: structural relationships and potential for recombination. J Virol. 1987 Sep;61(9):2659–2669. doi: 10.1128/jvi.61.9.2659-2669.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Varmus H. Retroviruses. Science. 1988 Jun 10;240(4858):1427–1435. doi: 10.1126/science.3287617. [DOI] [PubMed] [Google Scholar]
  36. Wang H., Kavanaugh M. P., North R. A., Kabat D. Cell-surface receptor for ecotropic murine retroviruses is a basic amino-acid transporter. Nature. 1991 Aug 22;352(6337):729–731. doi: 10.1038/352729a0. [DOI] [PubMed] [Google Scholar]

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