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In genetics and molecular biology, a corepressor is a molecule that represses the expression of genes. [1] In prokaryotes , corepressors are small molecules whereas in eukaryotes , corepressors are proteins .
corepressor – a protein (or a small molecule) that works with transcription factors to decrease the rate of gene transcription response element – a specific sequence of DNA that a transcription factor binds to
The ability of nuclear receptors to alternate between activation and repression in response to specific molecular cues, is now known to be attributable in large part to a diverse group of cellular factors, collectively termed coregulators and including coactivators and corepressors.
The binding of a ligand hormone causes the corepressor to dissociate and a coactivator is recruited. The activator bound coactivator recruits RNA polymerase and other transcription machinery that then begins transcribing the target gene.
20185 Ensembl ENSG00000141027 ENSMUSG00000018501 UniProt O75376 Q60974 RefSeq (mRNA) NM_001190438 NM_001190440 NM_006311 NM_001252313 NM_011308 NM_177229 RefSeq (protein) NP_001177367 NP_001177369 NP_006302 n/a Location (UCSC) Chr 17: 16.03 – 16.22 Mb Chr 11: 62.21 – 62.35 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The nuclear receptor co-repressor 1 also known as thyroid ...
corepressor – a protein (or a small molecule) that works with transcription factors to decrease the rate of gene transcription response element – a specific sequence of DNA that a transcription factor binds to
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The nuclear receptor co-repressor 2 is a transcriptional coregulatory protein that contains several nuclear receptor-interacting domains.In addition, NCOR2 appears to recruit histone deacetylases to DNA promoter regions.