Studies of biochemical crosstalk in chromatin with semisynthetic histones.
Studies of biochemical crosstalk in chromatin with semisynthetic histones.
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DOI:
10.1016/j.cbpa.2018.02.005
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发表时间:
2018-08
影响因子:
7.8
通讯作者:
Chatterjee C
中科院分区:
文献类型:
--
作者:
Leonen CJA;Upadhyay E;Chatterjee C
Reversible post-translational modifications of histone proteins in eukaryotic chromatin are closely tied to gene function and cellular development. Specific combinations of histone modifications, or marks, are implicated in distinct DNA-templated processes mediated by a range of chromatin-associated enzymes that install, erase and interpret the histone code. Mechanistic studies of the precise biochemical relationship between sets of marks and their effects on chromatin function are significantly complicated by the dynamic nature and heterogeneity of marks in cellular chromatin. Protein semisynthesis is a chemical technique that enables the piecewise assembly of uniformly and site-specifically modified histones in quantities sufficient for biophysical and biochemical analyses. Recent pioneering efforts in semisynthesis have yielded access to histones site-specifically modified by entire proteins, such as ubiquitin (Ub) and the small ubiquitin-like modifier (SUMO). Herein, we highlight key studies of biochemical crosstalk involving Ub and SUMO in chromatin that were enabled by histone semisynthesis.
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