通过小分子结合体受体进行活细胞成像,对含有维西纳二甲基蛋白的化学选择性化生物结合
Peng Zhang1, Xuechuan Wang2, Xiao Wang2
1The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, No. 28, West Xianning Road, Xi'an 710049, People's Republic of China.
Analytical chemistry
|July 25, 2023
概括
研究人员开发了新的光探测器,用于在活细胞中选择性标记邻近含迪醇蛋白 (VDPs). 这一突破有助于研究细胞氧化还原平衡和蛋白质功能.
科学领域:
- 生物化学 生物化学
- 化学生物学 化学生物学
- 细胞生物学 细胞生物学
背景情况:
- 研究细胞内氧化还原稳定需要工具来标记活细胞中的邻域二醇含蛋白 (VDPs).
- 为此,开发化学选择性化小分子至关重要.
研究的目的:
- 创建基于小分子的光探针,用于选择性VDP标签.
- 建立一个新的平台来研究活细胞中的VDP功能.
主要方法:
- 开发了用于-替代的双相似酸结合受体 (IDA).
- 使用的仿真体来证明IDA桥接附近的氨酸-硫.
- 评估了探针的灵敏度,检测极限和选择性,使用减少的牛血清白蛋白.
- 应用探针标记活细胞内源性VDPs在不同的氧化还原状态.
主要成果:
- 通过在IAD上的醇-醇替代物实现了VDP的选择性标签.
- 证明了附近的氨酸-硫的成功桥接和随后的脱.
- 展示了高灵敏度和低检测极限与度信号放大.
- 在活细胞中成功标记了内源性VDP,展示了现实世界的适用性.
结论:
- 基于基乙基的受体代表了一个新的功能探针平台.
- 这些探头可以研究VDP及其在细胞氧化还原平衡中的作用.
- 开发的探针提供了一种敏感和选择性的方法,用于对VDPs的活细胞成像.
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