A Chemical Probe for Protein Crotonylation.

A Chemical Probe for Protein Crotonylation.
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一种用于蛋白质共依旋化的化学探针。

DOI:
10.1021/jacs.7b13141
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发表时间:
2018-04-11
影响因子:
15
通讯作者:
Muir TW
Muir TW
中科院分区:
化学1区
文献类型:
--
作者:
Bos J;Muir TW

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Protein lysine crotonylation has emerged as an important post-translational modification (PTM) in the regulation of gene transcription through epigenetic mechanisms. Here we introduce a chemical probe, based on a water-soluble phosphine warhead, which specifically reacts with the crotonyl modification. We show that this reagent is complementary to antibody-based tools allowing detection of endogenous cellular proteins such as histones carrying the crotonylation PTM. The tool is also used to show that the histone acylation activity of the transcriptional co-activator, p300, can be activated by pre-existing lysine crotonylation through a positive feedback mechanism. This reagent provides a versatile and sensitive probe for the analysis of this PTM.
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