4.4 Article

A Facile Method to Synthesize Histones with Posttranslational Modification Mimics

Journal

BIOCHEMISTRY
Volume 51, Issue 26, Pages 5232-5234

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/bi300535a

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Funding

  1. National Institute of Health [1R01CA161158]
  2. Welch Foundation [A-1715]
  3. National Science Foundation [DBI0821700]

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Using an evolved pyrrolysyl-tRNA synthetase-tRNA(Pyl) pair, a Se-alkylselenocysteine was genetically incorporated into histone H3 with a high protein expression yield. Quantitative oxidative elimination of Se-alkylselenocysteine followed by Michael addition reactions with various thiol nucleophiles generated biologically active mimics of H3 with posttranslational modifications including lysine methylation, lysine acetylation, and serine phosphorylation.

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