Molecular cloning of the genome of poliovirus type 1.
- 1 October 1981
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 78 (10) , 5983-5987
- https://doi.org/10.1073/pnas.78.10.5983
Abstract
Poliovirus cDNA.RNA hybrids were prepared from the Mahoney strain of poliovirus type 1 by using reverse transcriptase (RNA-dependent DNA nucleotidyltransferase) and cloned in the Escherichia coli plasmid pBR322. Bacteria colonies carrying recombinant plasmids were selected by in situ hybridization with virus-specific RNase T1-resistant oligonucleotides. Analysis of the cDNA inserts by restriction mapping and electron microscopy showed that the cloned cDNAs, the longest of which was 3.2 kilobase pairs, originated from various parts of the viral RNA, covering at least 99% of the genome length. Due to overlapping of the clones, the restriction map of the poliovirus genome could be reconstructed. The complete 5' end of the genome was successfully cloned in at least one of the recombinant plasmids, pPV1-366.Keywords
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