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Here we show that in neural progenitor cells (NPCs) TRIM28 silences transcription of two groups of endogenous retroviruses (ERVs): IAP1 and MMERVK10C. Derepression of ERVs in Trim28-deficient NPCs was associated with a loss of H3K9me3 and resulted in transcriptional upregulation and reverse transcri...
ORGANISM(S): Mus musculus 
Heterochromatin is required to restrict aberrant expression of retrotransposons, but it remains poorly defined due to the underlying repeat-rich sequences. We dissected Suv39h-dependent histone H3 lysine 9 trimethylation (H3K9me3) by genome-wide ChIP-sequencing in mouse embryonic stem cells (ESCs). ...
ORGANISM(S): Mus musculus 
DNA methylation and histone H3 lysine 9 trimethylation (H3K9me3) play important roles in silencing of genes and retroelements. However, a comprehensive comparison of genes and repetitive elements repressed by these pathways has not been reported. Here we show that in mouse embryonic stem cells (mESC...
ORGANISM(S): Mus musculus 
KAP1 regulates ERVs in differentiated human cells and contributes to innate immune control
Endogenous retroviruses (ERVs) have accumulated in vertebrate genomes and contribute to the complexity of gene regulation. KAP1 represses ERVs during development by its recruitment to their repetitive sequences through KRAB-zinc finger proteins (KZNFs), but little is known about the regulation of ER...
ORGANISM(S): Homo sapiens 
2018-07-15 | GSE114998 | GEO
TRIM28 (KAP1 - KRAB-associated protein 1) is critical for the silencing of endogenous retroviruses (ERVs) in embryonic stem (ES) cells. Here, we reveal that an essential impact of this process is the protection of cellular gene expression in early embryos from perturbation by cis-acting activators c...
ORGANISM(S): Mus musculus 
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