PHYSICAL AND CHEMICAL PROPERTIES OF RNA FROM THE BACTERIAL VIRUS R17

Abstract
RNA isolated by phenol extraction from the bacterial virus R17 consisted essentially of a single homogeneous species. Its molecular weight, based on sedimentation and viscosity in several media, was in the range of 1.0-1.4 x 106. Physico-chemical studies relating to RNA configuration in solution and in the intact virus indicated that, in concentrated salt solutions and in the intact virus, the RNA was largely in an ordered, presumably helical configuration.

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