Reverse cumulative distributions for the number of different TSS positions that have at least a given number of tags mapping to them. Both axes are shown on a logarithmic scale. The three red curves correspond to the distributions of the three THP-1 cell control samples and the three blue curves to the three THP-1 samples after 24 hours of phorbol myristate acetate treatment. All other samples show very similar distributions (data not shown).
Balwierz et al. Genome Biology 2009 10:R79 doi:10.1186/gb-2009-10-7-r79