SFP6光探针用于成像活细胞中的SAM动态
Shuhui Zhang1, Jinghui Li1, Gengsheng Cao2
1Henan Province Livestock Genome Editing and Biobreeding Engineering Research Center, School of Life Sciences, Henan University, Kaifeng, 475004, China.
Mikrochimica acta
|February 21, 2025
概括
研究人员开发了SFP6,这是S-adenosyl-L-methionine (SAM) 的光探针,可以实时监测活细胞中的SAM水平. 这种工具有助于研究甲基化相关的细胞过程,如基因表达和新陈代谢.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- S-adenosyl-L-methionine (SAM) 对于细胞甲基化过程至关重要.
- 细胞内SAM水平的动态监测对于了解细胞功能至关重要.
- 现有的SAM检测方法在活细胞中缺乏时空分辨率.
研究的目的:
- 开发一种基因编码的光探针,用于实时可视化活细胞中的SAM动态.
- 评估探测器的灵敏度,稳定性,生物相容性和监测SAM水平的准确性.
- 为了研究甲基化相关的生理和生化过程.
主要方法:
- 基因编码的光探针 (SFP6) 的开发,基于弗斯特共振能量转移 (FRET).
- 在各种哺乳动物细胞系中表达和验证SFP6.
- 具有高时空分辨率的细胞内SAM度变化的动态成像.
主要成果:
- 在SAM检测中,SFP6探测器显示出高灵敏度和出色的生物相容性.
- 探针在不同类型的哺乳动物细胞中稳定地表达.
- 在单细胞分辨率下,SFP6准确地实时监测内源和外源SAM水平波动.
结论:
- 一个新的光探测器 (SFP6) 已成功开发用于活细胞中的动态SAM监测.
- SFP6提供了前所未有的时空分辨率,用于研究依赖SAM的细胞过程.
- 该工具可以实时调查基因表达,新陈代谢和其他与甲基化相关的生物功能.
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