“…VS B-virion RNA is virtually devoid of complementary RNA, as shown by almost complete digestion by RNase even after attempted melting and reannealing (Bishop and Roy,197Ib). The RNAs of three strains of rabies virus were found to have nucleotide composition very similar to that of VS virus (Aaslestad and Urbano, 1971). Huang and Wagner (1966b) originally estimated the molecular weight of purified VS T-virion RNA as 1.2-1.3 x 10 6 daltons, based on a sucrose gradient sedimentation coefficient of 23 S. Similar values for the molecular weight of short T-virion RNA have been reported by Brown et af.…”