Nonallelic transvection of multiple imprinted loci is organized by the H19 imprinting control region during germline development.
Sandhu KS, Shi C, Sjölinder M, Zhao Z, Göndör A, Liu L, Tiwari VK, Guibert S, Emilsson L, Imreh MP, et al. Genes Dev. 2009 Nov 15; 23(22):2598-603.