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  3. PA-SiR-Halo

PA-SiR-Halo 是一种靶向 HaloTag 的光激活荧光团。PA-SiR-Halo 在结合 HaloTag 时可在生理 pH 下稳定其荧光形式,偶联并光激活后显示出增强的亲核试剂抗性,且无需洗涤即可实现活细胞共聚焦成像、固定细胞单分子定位显微镜成像、活细胞单颗粒追踪,以及对动态线粒体结构的活细胞单分子定位显微镜成像。

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PA-SiR-Halo

PA-SiR-Halo Chemical Structure

CAS No. : 2358677-26-4

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  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

PA-SiR-Halo is a photoactivatable fluorophore targeting HaloTag. When bound to HaloTag, PA-SiR-Halo stabilizes its fluorescent form under physiological pH. After conjugation and photoactivation, it exhibits enhanced resistance to nucleophiles, and enables live-cell confocal imaging, fixed-cell single-molecule localization microscopy imaging, live-cell single-particle tracking, as well as live-cell single-molecule localization microscopy imaging of dynamic mitochondrial structures without the need for washing[1][2].

体外研究
(In Vitro)

PA-SiR-Halo 与纯化的 HaloTag 蛋白偶联后,在生理 pH 条件下经 UV 激活仍能保持稳定的荧光,其对半胱胺介导的荧光损失的抗性 (EC50 = 3.1 mM) 高于未偶联的 PA-SiR[1]
PA-SiR-Halo (0.5 μM; 2 h) 可在活 U-2 OS 细胞中标记 H2B-HaloTag,经 UV 激活后其信噪比高达 32,且无激活前荧光信号,激活后信号稳定[1]
PA-SiR-Halo 可实现 U-2 OS 细胞中 Cep41-HaloTag 标记微管的高分辨率固定细胞单分子定位显微镜 (SMLM) 成像,测得微管平均直径为 38.7 nm[1]
PA-SiR-Halo (0.5 μM; 1 h) 可实现 U-2 OS 细胞中 β2AR-HaloTag 的活细胞单颗粒追踪[1]
PA-SiR-Halo 可在 U-2 OS 细胞中对动态变化的、经 TOMM20-HaloTag 标记的线粒体外膜进行活细胞单分子定位显微镜 (SMLM) 成像,解析线粒体间小管和分裂事件等瞬时结构[1]

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

600.31

Formula

C33H50ClN3O3Si

CAS 号
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

纯度 & 产品资料
参考文献

PA-SiR-Halo 相关分类

  • 摩尔计算器

  • 稀释计算器

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产品名称:
PA-SiR-Halo
目录号:
HY-D3446
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