J Gen Virol 39 (1978), 1-8; DOI 10.1099/0022-1317-39-1-1
© 1978 Society for General Microbiology
Influenza Virus Transcription
J. J. Skehel and
A. J. Hay
Division of Virology, National Institute for Medical Research, Mill Hill, London NW7
For some time it has been known that influenza viruses contain a number of distinct single-stranded RNA molecules and in the last few years conclusive evidence has been obtained to indicate that both type A and type B viruses contain eight unique polynucleotide chains. This conclusion in the case of type A viruses is based on evidence provided by the results of direct chemical analysis involving RNase T1-oligonucleotide mapping (McGeoch et al. 1976) and nucleotide sequence analyses (J. J. Skehel & A. J. Hay, unpublished data) and by the results of genetic investigations involving analyses of the RNA components of recombinant viruses (Scholtissek et al. 1976; Hay et al. 1977a; Palese, 1977). The results of the former experiments have in addition allowed the identification of other small RNA molecules, detected in some strains of virus as 5'-terminal fragments of one of the largest unique genome segments, and have, therefore, resolved to some extent the ambiguity concerning the number of RNAs per genome.
Received 25 November 1977;
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Copyright © 1978 by the Society for General Microbiology.