Growing oocyte-specific transcription-dependent de novo DNA methylation at the imprinted Zrsr1-DMR.
2018
Background
Zrsr1 is a paternally expressed imprinted gene located in the first intron of Commd1, and the Zrsr1 promoter resides in a differentially methylated region (DMR) that is maternally methylated in the oocyte. However, a mechanism for the establishment of the methylation has remained obscure. Commd1 is transcribed in the opposite direction to Zrsr1 with predominant maternal expression, especially in the adult brain.
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