使用三种生物物理方法对基准G4探针和G4临床药物的系统评估:快速评估G4结合亲缘关系的指南
E Laigre1,2, H Bonnet3, C Beauvineau1,2
1CNRS UMR9187, INSERM U1196, Institut Curie, PSL Research University, F-91405, Orsay, France.
Chembiochem : a European journal of chemical biology
|April 15, 2024
概括
DC3是最强大的G-四复数DNA (G4) 结合剂,在各种G4序列中表现优于其他配体. 这项研究系统地对G4联体进行排名,有助于对针对G4结构的研究和治疗应用进行选择.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 药用化学 医学化学
背景情况:
- G-四复数DNA (G4) 结构影响遗传和表观遗传过程.
- 对于研究G4生物学和疾病应用而言,G4连接体是至关重要的工具.
- 为了有效使用,大量的G4配体 (>1000) 需要清晰的排序.
研究的目的:
- 系统地对比经典G4序列的流行的G4配体的结合亲缘关系排名.
- 为了比较FRET化,G4-FID和SPR试验在评估G4联体亲和力的性能.
- 为研究和治疗开发确定优质G4配体.
主要方法:
- 使用FRET化,G4-FID测定和表面等离子体共振 (SPR) 来进行亲和度测量.
- 系统地评估了11个流行的G4配体与5个经典的G4序列对比.
- 分析和比较来自多种测试技术的数据,以建立全球亲和度排名.
主要成果:
- 在所有测试的G4序列中,PhenDC3表现出最高的结合亲和力.
- PDS,PDC-360A,BRACO19,TMPyP4和RHPS4显示强度至中等结合,拓歧视有限.
- G4类药物如Quarfloxin,CX5461和c-PDS对所研究的G4s具有较弱的亲和力.
- 由于测试条件不兼容,NMM和Cu-ttpy显示了可变的结果.
结论:
- 建议PhenDC3作为评估G4亲和度测试的基准配体.
- SPR数据通常与FRET融和G4-FID结果保持一致,尽管有测试特定的限制.
- 该研究提供了G4配体的有价值的排名,有助于选择特定的G4相关研究和治疗策略.
相关概念视频
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