FIG. 2.

Schematic diagram of HPRS-103 and 966 viral genomes showing recombination and deletion junctions. (A) HPRS-103 structure showing the nucleotide positions of the genes and regions in the genome (top) and 966 virus genome structure showing the positions of insertion of c-myc and other deletions (bottom). (B) Nucleotide sequences at the junctions of recombination of myc and deletions in the env and E (XSR) element. The five A residues inserted before the translational start site (M) of myc are shown.