sequential high voltage electrophoresis and paper chromatography of the rna of fractionated nuclei isolated from fibroblasts exposed to tritiated ams ( 340 microm , 5 microci . per ml. , for 18 hours ) demonstrated that the inhibitor is demethylated to 3'-amino-3'-deoxyadenosine and incorporated into terminal positions in both nucleolar and nonnucleolar nuclear rna chains in the same relative amounts .
C0035668
rna
C0035700
nuclear rna