在现场使用超分辨率的冷相对光和电子显微镜对细胞内部件进行成像
Mart G F Last1, Lenard M Voortman1, Thomas H Sharp2
1Department of Cell and Chemical Biology, Leiden University Medical Centre, Leiden, The Netherlands.
Methods in cell biology
|May 5, 2024
概括
超分辨率冷相对光和电子显微镜 (SRcryoCLEM) 结合了冷单分子定位显微镜 (cryoSMLM) 和冷电子断层扫描 (cryoET) 用于目标的现场成像. 这种工作流便于研究细胞环境中的生物分子.
科学领域:
- 结构生物学 结构生物学
- 细胞生物学 细胞生物学
- 显微镜的使用方法
背景情况:
- 超分辨率冷相对光和电子显微镜 (SRcryoCLEM) 集成了冷单分子定位显微镜 (cryoSMLM) 和冷电子断层扫描 (cryoET).
- 这种技术允许精确地定位和高分辨率成像生物分子在其原生细胞环境.
- 在SRcryoCLEM的挑战包括专门的设备和专业知识的要求.
研究的目的:
- 为SRcryoCLEM提供了一个精简的工作流.
- 为了证明cryoSMLM的整合到已建立的cryoET协议.
- 促进SRcryoCLEM在结构生物学研究中的应用.
主要方法:
- 实施一个cryoSMLM工作流程,以精确地定位生物分子.
- 以冷SMLM数据为指导的有针对性的冷电子断层扫描 (cryoET) 采集.
- 使用scNodes软件包的cryoSMLM和cryoET数据集的相关性.
主要成果:
- 成功执行所有SRcryoCLEM实验阶段使用Vimentin作为目标.
- 将cryoSMLM集成到标准cryoET工作流程中的演示.
- 对scNodes软件进行验证,用于将cryoSMLM和cryoET数据关联起来.
结论:
- SRcryoCLEM是一种可访问的技术,用于特定细胞内部件的现场成像.
- 提出的工作流简化了这个过程,使SRcryoCLEM更容易实现.
- 这种方法提高了研究细胞环境中的生物分子结构的能力.
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