Receptor-Binding and Oncogenic Properties of Polyoma Viruses Isolated from Feral Mice
Figure 2
Origin Regions of Three Standard Polyoma Laboratory Strains and Eight Polyoma Isolates from Feral Mice
Amino acids at positions 91 and 296 of Vp1 are shown on the left. The origin regions on the right are denoted schematically as horizontal lines representing the sequences between the start sites for Vp2 (CAT←) and the T antigens (ATG→). The PTA sequence on the top is used as a reference. The bidirectional replication origin (← →) and the PvuII and Bgl1 restriction sites are shown as points of reference. The 40–base pair duplication at the Bgl1 sites in PTA is designated with shaded rectangles. Insertions and deletions are denoted by open boxes and open triangles, respectively, along with the number of base pairs.