A CTCF Code for 3D Genome Architecture.

ABSTRACT

The architectural protein CTCF plays a complex role in decoding the functional output of the genome. Guo et al. now show that the orientation of a CTCF site restricts its choice of interacting partner, thus creating a code that predicts the three-dimensional organization of the genome. We propose a DNA extrusion model to account for orientation-specific loop formation.