Total chemical synthesis of tyrosine iodinated histone through four-segment sequential native chemical ligation

Total chemical synthesis of tyrosine iodinated histone through four-segment sequential native chemical ligation
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通过四段连续天然化学连接全化学合成酪氨酸碘化组蛋白

DOI:
10.1016/j.tetlet.2022.154047
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发表时间:
2022-07
影响因子:
1.8
通讯作者:
Yi-Ming Li
Yi-Ming Li
中科院分区:
化学4区
文献类型:
--
作者:
Rong Ji;Jian Fan;Ning Wang;Jun Wang;Jing Shi;Yi-Ming Li

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Histone post-translational modifications play critical roles in dynamic regulation of chromatin structure. For instance, histone iodination has been confirmed to directly influence the stability of the histone core. However, it remains difficult for the construction of atom-customized iodinated histones for biochemical and biophysical studies. Here we report a practical strategy for the total chemical synthesis of homogenous histone H2B-Y81-iodination through the sequential ligation of four segments based on peptide hydrazides. The synthesized Y81-iodinatied H2B can be used for the construction of iodinated nucleosomes. Our results showed that iodinated histones synthesized by utilizing this strategy can provide multi-milligram-scale protein for biochemical studies.
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