PARTICIPATION OF BICARBONATE IN RNA AND PROTEIN SYNTHESES AS INDICATED BY VIRUS PROPAGATION IN HUMAN CELLS

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Abstract
The propagation of a strain of Coxsackie virus, group B type 1, in human cell cultures depleted of bicarbonate has been studied. Under the described experimental conditions, bicarbonate depletion suppresses the propagation of this virus. This suppressive effect may be reversed by the addition of the following compounds to the bicarbonate-depleted cultures: (a) bicarbonate; (b) adenosine, guanosine, cytidine, and uridine; (c) adenylic, guanylic, cytidylic, and uridylic acids; (d) enzymatically degraded RNA prepared from yeasts or human embryo, or (e) RNA. The following compounds are unable to reverse the suppressive effect of bicarbonate depletion: (a) adenine, guanine, cytosine, and uracil, with or without ribose; (b) adenine, guanine, cytosine, and thymine; (c) deoxyadenosine, deoxyguanosine, deoxycytidine, and thymidine; (d) deoxyadenylic, deoxyguanylic, deoxycytidylic, and thymidylic acids; (e) enzymatically degraded DNA, or (f) DNA.