Figure 4.

Transposon insertion sites in 3.2 Mb of mouse chromosome 1. (a) SB integration sites in Chromosome 1, the locations of the concatemer from which the transposons were remobilized (downwards arrow) and the 3.2 Mb region that had the highest density of integrations is marked with an asterisk. Region (b) was divided into 32 000 bins of size 100 bp and the Total V_step scores for each bin calculated as described in Figure 3. The average Total V_step value per bin is 23. (b) Blue bars, Total V_step scores/bin; red bars, insertion sites mapped as a function of position. (c) Insertion sites (red) displayed as a function of Total V_step score/bin (blue).