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CBP and RAD21 Proteins Bind at the Termini of Forum Domains in Human Chromosomes

  • BIOCHEMISTRY, BIOPHYSICS, AND MOLECULAR BIOLOGY
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Abstract

Forum domains are 50–100-kb stretches of DNA delimited by the hotspots of double-strand breaks (DSBs). These domains possess coordinately expressed genes. However, molecular mechanisms of such regulation are not clear. It is assumed that the proteins specifically binding at the termini of domains can be involved in coordinated regulation of expression. In this study, we used the results of precise mapping of hotspots of DSBs and ChIP-Seq data for ten nuclear proteins in HEK293T cell line for a search of proteins specifically binding at forum-domain termini. We detected that two proteins, CBP and RAD24, which are known to be involved in epigenetic regulation of gene expression and formation of 3D chromosomal structures, bind at the termini. We assume that these proteins may be involved in coordinated expression of genes in forum domains.

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Funding

The study was supported by the Russian Science Foundation (project no. 22-24-01118).

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Correspondence to N. A. Tchurikov.

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The authors declare that they have no conflicts of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Translated by M. Batrukova

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Tchurikov, N.A., Alembekov, I.R., Klushevskaya, E.S. et al. CBP and RAD21 Proteins Bind at the Termini of Forum Domains in Human Chromosomes. Dokl Biochem Biophys 513, 337–340 (2023). https://doi.org/10.1134/S1607672923700540

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  • DOI: https://doi.org/10.1134/S1607672923700540

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