A cluster to remember.

Blobel GA, Hardison RC.
Cell. 2013 Aug 15;154(4):718-20.
Abstract
Based on a massive transcription factor location analysis within a single cell type, in this issue Yan et al. find that the great majority of occupancies occur within dense clusters of up to 100 factors that almost invariably contain cohesins. Retention of cohesins at cluster sites during mitosis raises the possibility that they contribute to transcriptional memory during the cell cycle.