Phalloidin 是一种蘑菇衍生的毒素,可以与荧光染料结合来标记细胞骨架的 F-肌动蛋白 (λex=495 nm, λem=520 nm)。
Phalloidin staining will not work with methanol-fixed cells, probably because of the disruption of actin filament integrity, but it will work with cells fixed in 0.2% glutaraldehyde in PBS. For fluorescein isothiocyanate (FITC)-Phalloidin (or rhodamine isothiocyanate [RITC]-Phalloidin), the excitation wavelength maximum will be near 495 nm (or 550 nm) and the emission wavelength maximum will be ~520 nm based on H
2
O at pH 8.0 as the solvent (575 nm with methanol as the solvent). The emission spectrum of fluorescein can depend on the environmental pH and/or ionic strength.
类别
有毒物质
毒性分级
剧毒
急性毒性
腹腔- 大鼠 LD50: 1 毫克/ 公斤; 腹腔- 小鼠 LD50: 2 毫克/ 公斤
可燃性危险特性
可燃, 燃烧时分解有毒硫氧化物和氮氧化物气体
储运特性
库房低温, 通风, 干燥; 与食品原料分开存放
灭火剂
水, 二氧化碳, 干粉, 砂土