霍乱毒素B亚基（Cholera Toxin Subunit B，CTB) 通过与神经节苷脂GM1的戊多糖链结合附于细胞表面，可被轴突末端吸收并逆向运输至胞体，进而特异高效地逆行标记神经细胞，目前已成为应用最广泛的无毒逆行示踪剂。标记（Ex/Em）：Alexa Fluor™ 555 (555/565 nm)
| 生物活性 |
Cholera toxin subunit B (CTB) binds to the pentose chain of ganglioside GM1 and attaches to the cell surface. It can be absorbed by axon terminals and transported back to the cell body, thereby specifically and efficiently labeling nerve cells in a retrograde manner. Currently, CTB has become the most widely used non-toxic retrograde tracer. Tag (Ex/Em): Alexa Fluor ™ 555 (555/565 nm) |
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| 运输条件 |
Room temperature in continental US; may vary elsewhere.
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| 储存方式 |
-80°C, protect from light, 6 months |
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