previous studies have reported a virus-specific p21 polypeptide from translation of ha-musv rna in cell-free protein synthesis systems ( w. p. parks and e. m. scolnick , 1977 , j. virol . 22 , 711-719 ; t. y. shih , d. r. williams , m. o. weeks , j. m. maryak , w. c. vass , and e. m. scolnick , 1978 , j. virol 27 , 45-55 ) .
C0035668
rna
C0597295
protein synthesis