1887

Abstract

Full-length cDNA of the RNA genome segment coding for the major core protein VP7 of Australian bluetongue virus serotype 15 (BTV-15) has been isolated by reverse transcription-PCR cloning. Comparative analysis indicated that the BTV-15 VP7 sequence had diverged significantly from that of other members of the BTV serogroup. At the amino acid level, BTV-15 VP7 exhibited sequence identities of 80 to 84% with VP7 molecules of other serotypes, significantly lower than the sequence identities of between 93 and 100% observed among other serotypes characterized to date. This was consistent with previous observations that there were significant immunological differences between BTV-15 and other BTV serotypes and that monoclonal antibodies raised against BTV-1 VP7 failed to react with BTV-15 VP7. Recombinant BTV-15 VP7 protein produced from was largely insoluble, but maintained its immunogenicity. Polyclonal mouse sera raised against the recombinant VP7 protein reacted strongly with VP7 of BTV-15, but weakly with that of BTV-1.

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1994-09-01
2024-04-19
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References

  1. Afshar A., Thomas F. C., Wright P. F., Shapiro J. L., Shetti-Gara P. T., Anderson J. 1987; Comparison of competitive and indirect enzyme-linked immunosorbent assays for detection of bluetongue virus antibodies in serum and whole blood. Journal of Clinical Microbiology 25:1705–1710
    [Google Scholar]
  2. Afshar A., Eaton B. T., Wright P. F., Pearson J. E., Anderson J., Jeggo M., Trotter C. H. 1992; Competitive ELISA for serodiagnosis of bluetongue: evaluation of group-specific mono�clonal antibodies and expressed VP7 antigen. Journal of Veterinary Diagnostic Investigation 4:231–237
    [Google Scholar]
  3. Anderson J. 1984; Use of monoclonal antibody in a blocking ELISA to detect group-specific antibodies to bluetongue virus. Journal of Immunological Methods 74:139–149
    [Google Scholar]
  4. Boulanger P., Frank J. F. 1975; Serological methods in the diagnosis of bluetongue. Australian Veterinary Journal 51:185–189
    [Google Scholar]
  5. Della-Porta A. J., Dellers R. F., Herniman K. A. J., Littlejohns I. R., Cybinski D. H., St George T. D., McPhee D. A., Snowdon W. A., Campbell J., Cargill C., Corbould A., Chung Y. S., Smither V. W. 1983; Serological studies of Australian and Papua New Guinean cattle and Australian sheep for the presence of antibodies against bluetongue group viruses. Veterinary Microbiology 8:147–162
    [Google Scholar]
  6. Du Plessis D. H., Wang L. -F., Jordan F. A., Eaton B. T. 1994; Fine mapping of a continuous epitope on VP7 of bluetongue virus using overlapping synthetic peptides and a random epitope library. Virology 198:346–349
    [Google Scholar]
  7. Eaton B. T., Gould A. R., Hyatt A. D., Coupar B. E. H., Martyn J. C., White J. R. 1991; A bluetongue serogroup-reactive epitope in the amino terminal half of the major core protein VP7 is accessible on the surface of bluetongue virus particles. Virology 180:687–696
    [Google Scholar]
  8. Gould A. R. 1987; The complete nucleotide sequence of bluetongue virus serotype 1 RNA 3 and a comparison with other geographic serotypes from Australia, South Africa and the United States of America, and with other orbivirus isolates. Virus Research 7:169–183
    [Google Scholar]
  9. Gould A. R., Pritchard L. I. 1991; Phylogenetic analyses of the complete nucleotide sequence of the capsid protein (VP3) of Australian epizootic haemorrhagic disease of deer virus (serotype 2) and cognate genes from other orbiviruses. Virus Research 21:1–18
    [Google Scholar]
  10. Hager D. A., Burgess R. R. 1980; Elusion of proteins from sodium dodecyl sulfate-polyacrylamide gels, removal of sodium dodecyl sulfate, and renaturation of enzymatic activity: results with sigma subunit of Escherichia coli RNA polymerase, wheat germ DNA topoisomerase, and other enzymes. Analytical Biochemistry 109:76–86
    [Google Scholar]
  11. Huismans H., Erasmus B. J. 1981; Identification of the serotype- specific and group-specific antigens of bluetongue virus. Onderste-poort Journal of Veterinary Research 48:51–58
    [Google Scholar]
  12. Hyatt A. D., Eaton B. T. 1988; Ultrastructural distribution of the major capsid proteins within bluetongue virus and infected cells. Journal of General Virology 69:805–815
    [Google Scholar]
  13. Iwata H., Chuma T., Roy P. 1992; Characterization of the genes encoding two of the major capsid proteins of epizootic haemorrhagic disease virus indicates a close genetic relationship to bluetongue virus. Journal of General Virology 73:915–924
    [Google Scholar]
  14. Jeggo M. H., Wardley R. C. 1985; Bluetongue vaccine: cells and/or antibodies. Vaccine 3:57–58
    [Google Scholar]
  15. Jeggo M. H., Wardley R. C., Brownlie J. 1984; A study of the role of cell-mediated immunity in bluetongue virus infection in sheep, using cellular adoptive transfer techniques. Immunology 52:403–410
    [Google Scholar]
  16. Jochim M. M., Chow T. L. 1969; Immunodiffusion of bluetongue virus. American Journal of Veterinary Research 30:33–41
    [Google Scholar]
  17. Kowalik T. F., Li J. K. K. 1991; Bluetongue virus evolution: sequence analysis of the genomic SI segments and the major core protein VP7. Virology 181:749–755
    [Google Scholar]
  18. Le Blois H., Roy P. 1993; A single point mutation in the VP7 major core protein of bluetongue virus prevents the formation of core-like particles. Journal of Virology 67:353–359
    [Google Scholar]
  19. Lunt R. A., White J. R., Della-Porta A. J. 1987; A sensitive and specific ELISA for the serodiagnosis of bluetongue and epizootic haemorrhagic disease of deer. Veterinary Microbiology 16:323–338
    [Google Scholar]
  20. Lunt R. A., White J. R., Blacksell S. D. 1988; Evaluation of a monoclonal antibody blocking ELISA for the detection of group-specific antibodies to bluetongue virus in experimental and field sera. Journal of General Virology 69:2729–2740
    [Google Scholar]
  21. Martyn J. C., Gould A. R., Eaton B. T. 1990; High level expression of the major core protein VP7 and the non-structural protein NS3 of bluetongue virus in yeast: use of expressed VP7 as a diagnostic, group-reactive antigen in a blocking ELISA. Virus Research 18:165–178
    [Google Scholar]
  22. Mellor P. S. 1990; The replication of bluetongue virus in Culicoides vectors. Current Topics in Microbiology and Immunology 162:143–161
    [Google Scholar]
  23. Moss S. R., Jones L. D., Nuttall P. A. 1992; Comparison of the major structural core proteins of tick-borne and Culicoides-borne orbiviruses. Journal of General Virology 73:2585–2590
    [Google Scholar]
  24. Roy P., Hirasawa T., Fernandez M., Blinov V. M., Sanchez-Vixcain Rodrique J. M. 1991; The complete sequence of the group-specific antigen, VP7, of African horsesickness disease virus serotype 4 reveals a close relationship to bluetongue virus. Journal of General Virology 72:1237–1241
    [Google Scholar]
  25. Smith D. B., Johnson K. S. 1988; Single-step purification of polypeptides expressed in Escherichia coli as fusions with glutathione S-transferase. Gene 67:31–40
    [Google Scholar]
  26. Studier F. W., Rosenberg A. H., Dunn J. J., Dubendorff J. W. 1990; Use of T7 RNA polymerase to direct expression of cloned genes. Methods in Enzymology 185:60–89
    [Google Scholar]
  27. Wade-Evans A. M. 1990; The complete nucleotide sequence of genome segment 7 of bluetongue virus, serotype 1 from South Africa. Nucleic Acids Research 18:4919
    [Google Scholar]
  28. Wang L. -F., Doi R. H. 1987; Developmental expression of three proteins from the first gene of the RNA polymerase sigma-43 operon of Bacillus subtilis. Journal of Bacteriology 169:4190–4195
    [Google Scholar]
  29. White J. R. 1992 Antigenic relationships between bluetongue virus serotypes as defined by monoclonal antibodies Ph.D. thesis Deakin University;
    [Google Scholar]
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