通过光催化标记进行全球蛋白质 - 连接体结合亲和概况分析
Charles D Warren1, Noah Yardeny1, Siyang Peng2
1Tri-Institutional PhD Program in Chemical Biology (TPCB), New York, NY, USA.
bioRxiv : the preprint server for biology
|July 9, 2025
概括
一个新的Affinity Map平台使全球定量约束性亲和关系分析成为可能. 这种方法同时识别蛋白质标,并测量复杂生物样本中各种配体的结合亲和力.
科学领域:
- 生物化学和分子生物学
- 化学生物学 化学生物学
- 蛋白质组学是指蛋白质组学.
背景情况:
- 蛋白质-配体相互作用对于药物作用和细胞信号传递至关重要.
- 目前用于识别相互作用和测量结合亲和力的方法通常是间接的,低通量或仅限于特定的蛋白质类.
- 同时识别目标和测量亲和力仍然是化学生物学中的一个重大挑战.
研究的目的:
- 开发一个可通用的平台,同时识别蛋白质标和定量结合性亲缘关系概况.
- 克服现有方法在范围和吞吐量方面的局限性.
- 为了使在本地生物环境中蛋白质-连接体相互作用的研究.
主要方法:
- 开发Affinity Map平台,集成竞争性结合分析,光催化标记和高通量蛋白质组学.
- 该平台应用于各种连接物类,包括小分子,和蛋白质.
- 使用细胞溶解物,器官提取物和活细胞表面验证该方法.
主要成果:
- 证明了Affinity Map对全球定量约束性亲和关系分析的能力.
- 展示了该平台在广泛的连接体类型 (小分子,线性,循环,蛋白质) 中的适用性.
- 在复杂的生物矩阵中成功测量了未经修改的配体和蛋白质之间的结合亲缘关系.
结论:
- 亲和图为全面的蛋白质 - 配体相互作用分析提供了可泛化和高通量方法.
- 该平台能够准确地测量在原生细胞环境中的结合亲缘关系,促进药物发现和生物研究.
- 这项技术显著扩大了用于描述复杂生物系统中分子相互作用的工具包.
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