HMGB1 binds to the KRAS promoter G-quadruplex: a new player in oncogene transcriptional regulation?

HMGB1 binds to the KRAS promoter G-quadruplex: a new player in oncogene transcriptional regulation?
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DOI:
10.1039/c8cc03614d
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发表时间:
2018-08-21
期刊:
Chemical communications (Cambridge, England)
影响因子:
--
通讯作者:
Pagano B
Pagano B
中科院分区:
其他
文献类型:
--
作者:
Amato J ;Madanayake TW ;Iaccarino N ;Novellino E ;Randazzo A ;Hurley LH ;Pagano B

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该通讯报告了 HMGB1 蛋白可能的独特作用。生物物理学研究表明,HMGB1 结合并稳定 KRAS 启动子元件的 G 四链体,该元件负责大部分转录活性。生物学数据表明,抑制 HMGB1 会增加 KRAS 表达。这些结果表明HMGB1可以通过G-四链体的功能识别在基因转录调控中发挥作用。生物物理和生物学数据表明,HMGB1 与 KRAS G 四链体结合,表明它参与癌基因转录调控。
This communication reports on a possible distinct role of HMGB1 protein. Biophysical studies revealed that HMGB1 binds and stabilizes the G-quadruplex of the KRAS promoter element that is responsible for most of the transcriptional activity. Biological data showed that inhibition of HMGB1 increases KRAS expression. These results suggest that HMGB1 could play a role in the gene transcriptional regulation via the functional recognition of the G-quadruplex. Biophysical and biological data reveal that HMGB1 binds to KRAS G-quadruplex and suggest that it is involved in oncogene transcriptional regulation.
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