Xie W et al, (2012)) showed the presence of a
differentially methylated region in the promoter region upstream of the putative non-coding RNA
which is located within the gene Ccdc40 (fRNAdb ID=FR149454). The DMR spans 919 bp
(119,119,717-119,120,635;mm9 build) and contains 15 CpG dinucleotides which are maternally
methylated. Additionally, allele specific enrichment of the active histone mark, H3K4me3 was
observed on the paternal allele.