Ribosomes: Effect of Interferon on Their Interacton with Rapidly Labeled Cellular and Viral RNA's

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Science  10 Mar 1967:
Vol. 155, Issue 3767, pp. 1254-1257
DOI: 10.1126/science.155.3767.1254


Rapidly labeled RNA of mouse L cells and labeled RNA of Mengo virus, unlike cellular RNA labeled under steady-state conditions, form detectable complexes with L-cell ribosomes. These ribosome-RNA complexes formed in vitro appear analogous to those assembled during polysome formation in vivo. When ribosomes are prepared from L cells exposed to homologous interferon, their capacity to associate with cell messenger is preserved, while their ability to interact with viral RNA is markedly reduced. The ribosomes from cells exposed to interferon are thus altered selectively to permit only certain messages to be bound and translated.