this rna , which we designate 5.9-s rna is present in the cellular cytoplasmic fraction at very low concentration ( approximately 1 % of the quantity of 4-s rna ) , but it accumulates to much higher levels in two murine oncornaviruses , moloney murine sarcoma leukemia virus complex and gross leukemia virus , where it represents as much as 10 % of the low-molecular-weight rna fraction associated with the 70-s rna genome .
C0007634
cellular
C0010834
cytoplasmic