Decay exponents of the random contact probabilities with genomic separation for direct comparison to 4C and 5C experiments.

Shown are the resulting exponents of a power-law fit to the size distribution of random contacts . A fit to the specific contact probability has been performed both in the region of small genomic separations () and in the region of genomic separations up to the complete chromosome ( Mb), yielding different exponents and respectively. These exponents can be compared to results from 5C and 4C experiments. Data is displayed for equilibrated chains of length for various looping probabilities , corresponding to different average numbers of loops, and different lifetimes of functional loops. For comparison with Fig. 1, the corresponding symbols are listed.