Summary
Similarities among the four structural proteins ofBombyx densonucleosis virus (DNV) were examined by four independent techniques, peptide mapping, immunodiffusion tests, amino acid analysis and enzyme linked immunosorbent (ELISA) technique. The peptide maps produced byStaphylococcus aureus V8 protease, or chymotrypsin indicated the existence of sequence homology among the proteins. The results of immunodiffusion tests revealed that these four structural proteins share common antigens. The amino acid compositions of these proteins were also very similar to each other. However, the amount of amino acid residues (e.g., serine) in VP3 was not always sufficient to account for the amount found in the smaller structural protein, VP2. These results indicate that the four structural proteins ofBombyx DNV probably originate, at least partially, from a common DNA sequence, and that VP2 is not a direct cleavage product of VP3.
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Bando, H., Nakagaki, M., Kawase, S.: Polyamines contained in the densonucleosis virus of the silkworm,Bombyx mori. J. Invertebr. Pathol.42, (264–266) (1983).
Benson, J. R., Hare, P. E.: o-Pthalaldehyde: Fluorogenic detection of primary amines in the picomole range. Comparison with fluorescamine and ninhydrin. Proc. Natl. Acad. Sci. U.S.A.72, 619–622 (1975).
Buller, R. M. L., Rose, J. A.: Characterization of adenovirus-associated virus-induced polypeptides in KB cells. J. Virol.25, 331–338 (1978).
Cleveland, D. W., Fischer, S. G., Kirschner, M. W., Laemmli, U. K.: Peptide mapping by limited proteolysis in sodium dodecyl sulfate and analysis by gel electrophoresis. J. Biol. Chem.252, 1102–1106 (1977).
Clinton, G. M., Hayashi, M.: The parvovirus MVM: a comparison of heavy and light particle infectivity and their density conversionin vitro. Virology74, 57–63 (1976).
Engvall, E.: Enzyme immunoassay ELISA and EMIT. In:Vunakis, H. V., Langone, J. J. (eds.), Methods in Enzymology, Vol. 70, 419–439. New York: Academic Press 1980.
Henderson, L. E., Oroszlan, S., Koningsberg, W.: A micromethod for complete removal of dodecyl sulfate from proteins by ionpair extraction. Analyt. Biochem.93, 153–157 (1979).
Hess, H. H., Lees, M. B., Derr, L. E.: A linear Lowry-Foline assay for both water-soluble and sodium dodecyl sulfate-solubilized proteins. Analyt. Biochem.85, 295–300 (1978).
Johnson, F. B., Ozer, H. L., Hoggan, M. D.: Structural proteins of adenovirus-associated virus type 3. J. Virol.8, 860–863 (1971).
Johnson, F. B., Thompson, T. A., Taylor, P. A., Vlazny, D. A.: Molecular similarities among the adenovirus-associated virus polypeptides and evidence for a precursor protein. Virology82, 1–13 (1977).
Kurstak, E.: Small DNA densonucleosis virus (DNV). Adv. Virus Res.17, 207–241 (1972).
Kurstak, E., Tijssen, P., Garzon, P.: Densonucleosis viruses (Parvoviridae). In:Maramorosch, K. (ed.), Ultrastructure in Biological Systems, 66–91. New York: Academic Press 1977.
Laemmli, U. K.: Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature (London)277, 680–685 (1970).
Longworth, J. F.: Small isometric viruses of invertebrates. Adv. Virus Res.23, 103–157 (1978).
Lubek, M. D., Lee, H. M., Hoggan, M. D., Johnson, F. B.: Adenovirus-associated virus structural protein sequence homology. J. gen. Virol.45, 209–216 (1979).
Mayor, H. D., Kurstak, E.: Virus with separately encapsidated complementary strands. In:Kurstak, E., Maramorosch, K. (eds.), Viruses, 55–78. New York: Academic Press 1974.
Moore, N. F., Kelly, D. C.: Interrelationships of the proteins of two insect parvoviruses (Densonucleosis virus types 1 and 2). Intervirology14, 160–166 (1980).
Nakagaki, M., Kawase, S.: DNA of a new parvo-like virus isolated from the silkworm,Bombyx mori. J. Invertebr. Pathol.35, 124–133 (1980).
Nakagaki, M., Kawase, S.: Structural proteins of densonucleosis virus isolated from the silkworm,Bombyx mori, infected with the flacherie virus. J. Invertebr. Pathol.36, 166–171 (1980).
Oakley, B. R., Kirsch, D. R., Morris, N. R.: A simple ultrasensitive silver stain for detecting proteins in polyacrylamide gels. Analyt. Biochem.105, 361–363 (1980).
Paradiso, P. R.: Infectious process of the parvovirus H-1: Correlation of protein content, particle density, and viral infectivity. J. Virol.39, 800–807 (1981).
Rose, J. A.: Parvovirus reproduction. In:Fraenkel-Conrat, H., Wagner, R. R. (eds.), Comprehensive Virology, Vol. 3, 1–61. New York: Plenum 1974.
Talbot, D. N., Yphantis, D. A.: Fluorescent monitoring of SDS gel electrophoresis. Analyt. Biochem.44, 246–253 (1971).
Tattersall, P., Caute, P. J., Shatkin, A. J., Ward, D. C.: Three structural polypeptides coded for by minute virus of mice, a parvovirus. J. Virol.20, 273–289 (1976).
Tijssen, P., van der Hurk, J., Kurstak, E.: Biochemical, biophysical and biological properties of densonucleosis virus. I. Structural proteins. J. Virol.17, 686–691 (1976).
Tijssen, P., Kurstak, E.: Studies on the structure of the two infectious types of densonucleosis virus. Intervirology11, 261–267 (1979).
Tijssen, P., Kurstak, E.: Biochemical, biophysical, and biological properties of densonucleosis virus (Parvovirus). III. Common sequences of structural proteins. J. Virol.37, 17–23 (1981).
Watanabe, H., Maeda, S.: Genetic resistance to peroral infection with a densonucleosis virus in the silkworm,Bombyx mori. J. Seric. Sci. Jpn.47, 209–214 (1978).
Weber, K., Osborn, M.: The reliability of molecular weight determinations by dodecyl sulfate-polyacrylamide gel electrophoresis. J. Biol. Chem.244, 4406–4412 (1969).
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Bando, H., Kondo, N. & Kawase, S. Molecular homology among the structural proteins of densonucleosis virus from silkworm,Bombyx mori . Archives of Virology 80, 209–218 (1984). https://doi.org/10.1007/BF01310660
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DOI: https://doi.org/10.1007/BF01310660