Cohesin loading at regulatory elements shapes 3D genome folding during erythropoiesis [Micro-C]

It remains unclear whether this transcriptional specialization is linked to specific changes in 3D genome organization. We generated deep Micro-C maps across human erythropoiesis to understand the relationship between cis-regulatory elements and cohesin-mediated loop extrusion during erythroid differentiation.

Shifts in erythroid 3D genome structure during differentiation and under perturbations of transcription factors and cohesin subunits/cofactors indicates that a subset of CREs concentrate loop extrusion near key genes during erythroid differentiation.