将FOXA1的开拓性功能与共价小分子重定向
Sang Joon Won1, Yuxiang Zhang1, Christopher J Reinhardt1
1Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037, USA.
Molecular cell
|October 16, 2024
概括
研究人员发现了化学修改先驱转录因子 (TF) 的小分子,如FOXA1,改变它们在癌细胞中的DNA结合和染色质重塑活性.
科学领域:
- * 分子生物学 * 分子生物学
- * 化学生物学 化学生物学
- * 癌症研究研究
背景情况:
- *先驱转录因子 (TFs) 通过打开染色体对基因调节至关重要.
- * 由于缺乏先驱TF的化学探测器,机理学研究受到限制.
- * 叉头盒蛋白A1 (FOXA1) 是前列腺癌中关键的先驱TF.
研究的目的:
- * 发现化学探针,用于研究开创性的TF机制.
- * 探索化学修饰对FOXA1活动的影响.
- * 了解小分子如何控制FOXA1的开拓性功能.
主要方法:
- * 化学蛋白质选用于识别针对FOXA1.1.的电友化合物.
- *共价联结体的合成和表征.
- *在体外和细胞内测试以评估FOXA1的结合和活性.
- *全基因组结合研究 (例如,ChIP-seq) 和染色质可访问性测试.
主要成果:
- *发现了电友化合物,这些化合物在C258.8的位置刻板选择性地结合FOXA1.
- *对FOXA1的共价修饰以DNA依赖的方式改变其DNA结合特异性.
- * 干迅速重塑前列腺癌细胞中的FOXA1先驱活动.
- *观察到FOXA1结合的重新分配和染色质可访问性的变化.
- * 机制表明连接体放松了正规的DNA结合偏好.
结论:
- *可以开发小分子来准和调节先驱TF活动.
- * 化学控制FOXA1可塑性为治疗干预提供了新的途径.
- * 这项工作为研究先驱TF函数提供了新的化学工具.
关键词:
ATAC-seqq 的使用情况.在 ChIP-seqq.我们的FOXA1A1基于活动的蛋白质分析.在这种情况下,染色染色素它们是共价的.半氨酸 (cysteine) 是一种氨酸.开拓者的转录因子蛋白质组学 蛋白质组学更多相关视频
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