Histone H4 lysine 20 acetylation is associated with gene repression in human cells

Jun Ya Kaimori, Kazumitsu Maehara, Yoko Hayashi-Takanaka, Akihito Harada, Masafumi Fukuda, Satoko Yamamoto, Naotsugu Ichimaru, Takashi Umehara, Shigeyuki Yokoyama, Ryo Matsuda, Tsuyoshi Ikura, Koji Nagao, Chikashi Obuse, Naohito Nozaki, Shiro Takahara, Toshifumi Takao, Yasuyuki Ohkawa, Hiroshi Kimura, Yoshitaka Isaka

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Histone acetylation is generally associated with gene activation and chromatin decondensation. Recent mass spectrometry analysis has revealed that histone H4 lysine 20, a major methylation site, can also be acetylated. To understand the function of H4 lysine 20 acetylation (H4K20ac), we have developed a specific monoclonal antibody and performed ChIP-seq analysis using HeLa-S3 cells. H4K20ac was enriched around the transcription start sites (TSSs) of minimally expressed genes and in the gene body of expressed genes, in contrast to most histone acetylation being enriched around the TSSs of expressed genes. The distribution of H4K20ac showed little correlation with known histone modifications, including histone H3 methylations. A motif search in H4K20ac-enriched sequences, together with transcription factor binding profiles based on ENCODE ChIP-seq data, revealed that most transcription activators are excluded from H4K20ac-enriched genes and a transcription repressor NRSF/REST co-localized with H4K20ac. These results suggest that H4K20ac is a unique acetylation mark associated with gene repression.

元の言語英語
記事番号24318
ジャーナルScientific reports
6
DOI
出版物ステータス出版済み - 4 11 2016

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フィンガープリント Histone H4 lysine 20 acetylation is associated with gene repression in human cells' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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    Kaimori, J. Y., Maehara, K., Hayashi-Takanaka, Y., Harada, A., Fukuda, M., Yamamoto, S., Ichimaru, N., Umehara, T., Yokoyama, S., Matsuda, R., Ikura, T., Nagao, K., Obuse, C., Nozaki, N., Takahara, S., Takao, T., Ohkawa, Y., Kimura, H., & Isaka, Y. (2016). Histone H4 lysine 20 acetylation is associated with gene repression in human cells. Scientific reports, 6, [24318]. https://doi.org/10.1038/srep24318