1887

Abstract

SUMMARY

Japanese encephalitis virus (JEV) infected chick embryo (CE) cells were treated with 4 µg actinomycin D/ml and 5 m--glucosamine at 2 or 3 h before harvesting. Production of JEV was not affected by the short-time treatment of these drugs. The radioactivity in virus-specific RNA in the glucosamine-treated cells was apparently higher than in non-treated cells. Nuclear and cytoplasmic extracts were prepared from the JEV-infected cells pulse-labelled with H-uridine at 15 h after infection. Analysis of virus RNA in nuclear extracts on sucrose density gradients showed that most of the radioactivity was in 23S RNA, 26S RNA and 8 to 12S RNA. The radioactivity of virus RNA in cytoplasmic extracts was found in 42S RNA and RNA fragments sedimenting at less than 8S.

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/content/journal/jgv/10.1099/0022-1317-34-1-201
1977-01-01
2021-10-27
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