An illustration of the statistical model for probability analysis of ChIA-PET interactions. RA and RB represent two DNA regions ('anchors') with cA and cB PETs (here 9 and 7, respectively). IA, B is the number of inter-ligation PETs between RA and RB and here IA, B is equal to 5.
Li et al. Genome Biology 2010 11:R22 doi:10.1186/gb-2010-11-2-r22