(CAP); 
rfWAP'* 
80 s 
** 
OSS 
— (potyA) Game ANA 
Pifi5« 
PrUOtf*^ 
mo** 
Rf.1 Structure of Mo-MuLV provirus »nd genomic RNA. The origins of 
plus (oss) and minus (tRNA rro )- strand DNA synthesis are indicated on the 
genomic RNA, as well as the structural features of LTR. Pr65**‘ and 
Prl80***‘' ,< are translated from a 35S mRNA and Pr80'"" from a spliced, 
2 IS mRNA. The mature protein species of the three primary polyproteins 
are indicated (RT is reverse transcriptase, the question mark indicates that 
other pol products are likely but as of yet uncharacterized). The enp gene 
overlaps the 3* end of the pol gene. 
Fig. 1 . (Shinnick et al 
, 1981 ) 
[ 172 ] 
Recombinant DNA Research, Volume 12 
