Regulation of somatic hypermutation by higher-order chromatin structure
Schoeberl et al. employ Tri-C to unravel the higher-order chromatin architecture underpinning the co-transcriptional mutagenesis of immunoglobulin genes during antibody maturation in human B cells. They provide evidence that antibody maturation occurs within a dynamic multiway hub wherein transcription and mutation of different genes occur non-competitively.