Zheng, Yupeng, Tipton, Jeremiah D, Thomas, Paul M, Kelleher, Neil L and Sweet, Steve M M (2014) Site-specific human histone H3 methylation stability: fast K4me3 turnover. Proteomics, 14 (19). pp. 2190-2199. ISSN 1615-9853

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Abstract

We employ stable‐isotope labeling and quantitative mass spectrometry to track histone methylation stability. We show that H3 trimethyl K9 and K27 are slow to be established on new histones and slow to disappear from old histones, with half‐lives of multiple cell divisions. By contrast, the transcription‐associated marks K4me3 and K36me3 turn over far more rapidly, with half‐lives of 6.8 h and 57 h, respectively. Inhibition of demethylases increases K9 and K36 methylation, with K9 showing the largest and most robust increase. We interpret different turnover rates in light of genome‐wide localization data and transcription‐dependent nucleosome rearrangements proximal to the transcription start site.

Item Type:	Article
Additional Information:	Keywords: Cell biology / Chromatin / Demethylation / Heterochromatin / Methylation turnover / SILAC / Transcription
Schools and Departments:	School of Life Sciences > Sussex Centre for Genome Damage and Stability
Subjects:	Q Science > QD Chemistry > QD0241 Organic chemistry > QD0415 Biochemistry
Depositing User:	Gee Wheatley
Date Deposited:	07 Aug 2014 12:06
Last Modified:	02 Aug 2019 13:30
URI:	http://sro.sussex.ac.uk/id/eprint/49525

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