we isolated the dna fragment encoding the n-terminal portion up to the 70th aa residue from plasmid ph-1 which encodes the total genome of ha-musv , and the dna fragment encoding the c-terminal portion from the 40th aa to the c terminus from plasmid p6a1 which includes the human n-ras cdna but lacks the n-terminal portion .
C0086418
human
C0034678
ras