<i>H19</i> Imprinting Control Region Methylation Requires an Imprinted Environment Only in the Male Germ Line

Abstract excerpt

The 2.4-kb H19 imprinting control region (H19ICR) is required to establish parent-of-origin-specific epigenetic marks and expression patterns at the Igf2/H19 locus. H19ICR activity is regulated by DNA methylation. The ICR is methylated in sperm but not in oocytes, and this paternal chromosome-specific methylation is maintained throughout development. We recently showed that the H19ICR can work as an ICR even when...

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