Properties of visna virus particles harvested at short time intervals: RNA content, infectivity, and ultrastructure.


The major RNA component of Visna virus harvested at short intervals of time (5 min) is not the 60 to 70S RNA but a molecule of higher electrophoretic mobility. This RNA has been isolated and characterized. Its sedimentation coefficient is identical to that of 30 to 40S RNA subunits obtained by heat denaturation of the 60 to 70S RNA. In 1.8% acrylamide gels… (More)


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