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Although many long non-coding RNAs (lncRNAs) are imprinted, their roles often remain unknown. The Dlk1-Dio3 domain expresses the lncRNA Meg3 and multiple microRNAs and small nucleolar RNAs (snoRNAs) on the maternal chromosome and constitutes an epigenetic model for development. The domain’s Dlk1 (Delta-like-1) gene encodes a ligand that inhibits Notch1 signaling and regulates diverse developmental...
Nuclear retinoic acid receptors (RARs) are transcriptional transregulators that control the expression of specific subsets of genes in a ligand-dependent manner. The basic mechanism for switching on gene transcription by agonist-liganded RARs involves their binding at specific response elements located in target genes. It also involves interactions with coregulatory protein complexes, the assembly...
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