Fig. 7.

Four regimes of chromatin compaction and nesting. (A) Diagram indicating the four regimes of chromatin compaction and nesting as functions of cohesin processivity and separation. (B–D) Schematic contact probabilities on log–log scales for the different regimes. In (D), genomic separations of $C_1\lambda <s\le N_{e,active}$ may have $P\left(s\right)\sim s^{-3/2}$ or $P\left(s\right)\sim s^{-3}$ depending on whether cohesins can traverse each other.