产品名称
鬼笔环肽,异硫氰酸荧光素标记, sequence Amanita phalloides(synthetic: peptide sequence)
biological source
sequence from Amanita phalloides (synthetic: peptide sequence)
form
solid
fluorescence
λex 495 nm; λem 520 nm(lit.)
storage temp.
−20°C
Quality Level
General description
鬼笔环肽是由死亡之帽鬼笔鹅膏产生的鬼笔毒素。它是一种可与肌动蛋白相互作用的环肽,最早是在鬼笔环肽中毒的大鼠体内发现的。它是一种七肽,本质上是环状的,在6位色氨酸和3位半胱氨酸之间具有交联键。鬼笔环肽中氨基酸7(γ-δ-二羟基亮氨酸)的侧链可被修饰,通过该修饰可以产生荧光标记的鬼笔环肽化合物。
Application
异硫氰酸荧光素标记的鬼笔环肽可用于:
- 观察内皮素-1(ET-1)和血管紧张素II(Ang-II)处理后原代乳鼠心肌细胞(PNCM)和H9C2细胞(大鼠心肌成肌细胞)F-肌动蛋白的重组情况。
- 在免疫化学中标记微丝。
- 在免疫荧光分析中对F-肌动蛋白进行染色。
Biochem/physiol Actions
鬼笔环肽与聚合肌动蛋白相互作用,而不与寡聚或单体形式相互作用。这种相互作用产生高度稳定的肌动蛋白丝,能抵抗解聚和分解。在大鼠中,这种毒素可导致肝出血死亡,细胞显示出异常的肌动蛋白聚集。对荧光标记的鬼笔环肽化合物进行衍生化后,鬼笔环肽对肌动蛋白的亲和力并未显著改变改变。这些化合物可用于研究真核细胞内肌动蛋白的结构和组织。
结合聚合F肌动蛋白的毒素,从而稳定肌动蛋白并干扰富含肌动蛋白的结构的功能。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
高风险级别生物产品--毒素类产品
此项目有
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