Abstract
An RNA polymerase activity was found to be associated with the infectious drosophila X virus particles extracted from infected flies. The rate of synthesis was at first linear as a function of time, and then a plateau was reached. During the linear phase of the synthesis, the template and product were associated as replicative intermediates which were larger than the double-stranded RNA of the drosophila X virus genome, but the final product of the reaction was indistinguishable from the RNA genome with respect to its density, sedimentation coefficient, electrophoretic mobility, and RNase resistance. The results indicated that both strands of the genomic RNA were copied. The implications of these findings with regard to other virion polymerases are discussed.
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Selected References
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- Acs G., Klett H., Schonberg M., Christman J., Levin D. H., Silverstein S. C. Mechanism of reovirus double-stranded ribonucleic acid synthesis in vivo and in vitro. J Virol. 1971 Nov;8(5):684–689. doi: 10.1128/jvi.8.5.684-689.1971. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Banerjee A. K., Shatkin A. J. Transcription in vitro by reovirus-associated ribonucleic acid-dependent polymerase. J Virol. 1970 Jul;6(1):1–11. doi: 10.1128/jvi.6.1.1-11.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bernard J. P., Petitjean A. M. In vitro synthesis of double stranded RNA by Drosophila X virus purified virions. Biochem Biophys Res Commun. 1978 Aug 14;83(3):763–770. doi: 10.1016/0006-291x(78)91460-2. [DOI] [PubMed] [Google Scholar]
- Bishop D. H., Claybrook J. R., Pace N. R., Spiegelman S. An analysis by gel electrophoresis of Q-beta-RNA complexes formed during the latent period of an in vitro synthesis. Proc Natl Acad Sci U S A. 1967 May;57(5):1474–1481. doi: 10.1073/pnas.57.5.1474. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Buck K. W. Replication of double-stranded RNA in particles of Penicillium stoloniferum virus S. Nucleic Acids Res. 1975 Oct;2(10):1889–1902. doi: 10.1093/nar/2.10.1889. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Buck K. W. Semi-conservative replication of double-stranded RNA by a virion-associated RNA polymerase. Biochem Biophys Res Commun. 1978 Oct 16;84(3):639–645. doi: 10.1016/0006-291x(78)90753-2. [DOI] [PubMed] [Google Scholar]
- Dobos P. Size and structure of the genome of infectious pancreatic necrosis virus. Nucleic Acids Res. 1976 Aug;3(8):1903–1924. doi: 10.1093/nar/3.8.1903. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Levin D. H., Mendelsohn N., Schonberg M., Klett H., Silverstein S., Kapuler A. M., Acs G. Properties of RNA transcriptase in reovirus subviral particles. Proc Natl Acad Sci U S A. 1970 Jul;66(3):890–897. doi: 10.1073/pnas.66.3.890. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Loening U. E. The determination of the molecular weight of ribonucleic acid by polyacrylamide-gel electrophresis. The effects of changes in conformation. Biochem J. 1969 Jun;113(1):131–138. doi: 10.1042/bj1130131. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Nick H., Cursiefen D., Becht H. Structural and growth characteristics of infectious bursal disease virus. J Virol. 1976 Apr;18(1):227–234. doi: 10.1128/jvi.18.1.227-234.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sakuma S., Watanabe Y. Reovirus replicase-directed synthesis of double-stranded ribonucleic acid. J Virol. 1972 Oct;10(4):628–638. doi: 10.1128/jvi.10.4.628-638.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sakuma S., Watanabe Y. Unilateral synthesis of reovirus double-stranded ribonucleic acid by a cell-free replicase system. J Virol. 1971 Aug;8(2):190–196. doi: 10.1128/jvi.8.2.190-196.1971. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Skehel J. J., Joklik W. K. Studies on the in vitro transcription of reovirus RNA catalyzed by reovirus cores. Virology. 1969 Dec;39(4):822–831. doi: 10.1016/0042-6822(69)90019-1. [DOI] [PubMed] [Google Scholar]
- Underwood B. O., Smale C. J., Brown F., Hill B. J. Relationship of a virus from Tellina tenuis to infectious pancreatic necrosis virus. J Gen Virol. 1977 Jul;36(1):93–109. doi: 10.1099/0022-1317-36-1-93. [DOI] [PubMed] [Google Scholar]