ArticleThe Biochemical journal2014
Holocarboxylase synthetase interacts physically with nuclear receptor co-repressor, histone deacetylase 1 and a novel splicing variant of histone deacetylase 1 to repress repeats.
Article in The Biochemical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Review
- Biotin attenuates heat shock factor 4b transcriptional activity by lysine 444 biotinylation.Biochemistry and biophysics reports · 2022Article
- Article
- Resveratrol compounds inhibit human holocarboxylase synthetase and cause a lean phenotype in Drosophila melanogaster.The Journal of nutritional biochemistry · 2015Article
- β-Keto and β-hydroxyphosphonate analogs of biotin-5'-AMP are inhibitors of holocarboxylase synthetase.Bioorganic & medicinal chemistry letters · 2014Article
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Authors and funding
2 authors at 1 institution in 1 country.
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Abstract
HLCS (holocarboxylase synthetase) is a nuclear protein that catalyses the binding of biotin to distinct lysine residues in chromatin proteins. HLCS-dependent epigenetic marks are over-represented in repressed genomic loci, particularly in repeats. Evidence is mounting that HLCS is a member of a multi-protein gene repression complex, which determines its localization in chromatin. In the present study we tested the hypothesis that HLCS interacts physically with N-CoR (nuclear receptor co-repressor) and HDAC1 (histone deacetylase 1), thereby contributing toward the removal of H3K9ac (Lys⁹-acetylated histone H3) gene activation marks and the repression of repeats. Physical interactions between HLCS and N-CoR, HDAC1 and a novel splicing variant of HDAC1 were confirmed by co-immunoprecipitation, limited proteolysis and split luciferase complementation assays. When HLCS was overexpressed, the abundance of H3K9ac marks decreased by 50% and 68% in LTRs (long terminal repeats) 15 and 22 respectively in HEK (human embryonic kidney)-293 cells compared with the controls. This loss of H3K9ac marks was linked with an 83% decrease in mRNA coding for LTRs. Similar patterns were seen in pericentromeric alpha satellite repeats in chromosomes 1 and 4. We conclude that interactions of HLCS with N-CoR and HDACs contribute towards the transcriptional repression of repeats, presumably increasing genome stability.
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Registered trials
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