Abstract
Loss of imprinting (LOI) at the Dlk1-Dio3 locus is linked to Kagami-Ogata and Temple syndromes, and to cancer, but molecular mechanisms that prevent LOI are under-studied. In this issue of Developmental Cell, Aronson etal. demarcate the bipartite regulation of the Dlk1-Dio3 imprinting control region (ICR) IG-DMR, which maintains locus imprinting.
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