grade
Molecular Biology
product line
BioReagent
concentration
500 μg/mL in H2O
technique(s)
electrophoresis: suitable
suitability
suitable for gel electrophoresis
SMILES string
[Br-].CC[n+]1c(-c2ccccc2)c3cc(N)ccc3c4ccc(N)cc14
InChI
1S/C21H19N3.BrH/c1-2-24-20-13-16(23)9-11-18(20)17-10-8-15(22)12-19(17)21(24)14-6-4-3-5-7-14;/h3-13,23H,2,22H2,1H3;1H
InChI key
ZMMJGEGLRURXTF-UHFFFAOYSA-N
Application
溴化乙锭溶液已用于消耗mtDNA，以研究自噬中的线粒体损伤信号。它也已被用于通过彗星检测法（comet assay）检测DNA损伤。
溴化乙啶 (EtBr) 为聚丙烯酰胺凝胶电泳或琼脂糖凝胶电泳中最常用的核酸染料。EtBr 在结合到双链 RNA 上时其荧光可提高 21 倍，在结合到双链 DNA 上可提高 25 倍，从而使得在低染料浓度 (10μg/ml) 下无需背景脱色。溴化乙啶已用于核酸的许多荧光分析。已表明它可结合到单链 DNA（虽然强度不高）和三链 DNA 上。由于 EtBr 能够结合到 DNA 上，因此它是 DNA 聚合酶的抑制剂。
Biochem/physiol Actions
溴化乙啶可插入双链 DNA 和 RNA 中，并作为移码诱变剂。它还可与吖啶橙结合用于区分存活的、凋亡的和坏死的细胞。
Preparation Note
对于在电泳后进行凝胶染色，应先用水将储存液样品稀释到 0.5μg/ml，再将凝胶孵育 15-30 分钟。通常无需脱色，但是如果必须降低背景色，则可在水中脱色 15 分钟。然后可在紫外灯箱（254nm 波长）中检测 DNA 条带。也可将溴化乙啶加到凝胶和电泳缓冲液（终浓度 0.5μg/ml）中，并在电泳后立即显影。
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存储类别
12 - Non Combustible Liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
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全球贸易项目编号
| 货号 | GTIN |
|---|---|
| E1385-5ML | 04061838255266 |