the effects of 5-fu on rna metabolism in l1210 cells are as follows : ( 1 ) inhibition of the processing of preribosomal rna to ribosomal rna ( 2 ) inhibition of the synthesis of poly ( a ) rna of mrna ( 3 ) inhibition of trna methylation ( 4 ) impaired synthesis of snrna , u4 , u6 .
C0035701
ribosomal rna
C0035668
rna