BioProject

The genome is folded into domains that are located in either transcriptionally inert or permissive compartments. More...

The genome is folded into domains that are located in either transcriptionally inert or permissive compartments. Here we used genome-wide strategies to characterize domains during B cell development. Structured Interaction Matrix Analysis revealed that CTCF occupancy was primarily associated with intra-domain interactions, whereas p300, E2A, Pax5 and PU.1 were involved with intra- and inter-domain interactions that are developmentally regulated. We identified a spectrum of genes that switched nuclear location during early B cell development. In progenitors the transcriptionally inactive Ebf1 locus was sequestered at the nuclear lamina, thereby preserving multipotency, however upon development into the pro-B cell stage Ebf1 and other genes switched compartments to establish de novo intra- and inter-domain interactions that were associated with B lineage specific transcription signatures. Overall design: Performed Hi-C, GRO-seq, and ChIP-seq to pinpoint the underlying molecular mechanisms that link transcriptional regulation to genomic structure and architecture in lymphocyte development Less...