form
tablet
concentration
~10 mg/tablet ethidium bromide
mp
260-262 °C (dec.) (lit.)
suitability
in accordance for electrophoresis test, in accordance for nucleic acid staining
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 (EtBr) 是 PAGE 或琼脂糖凝胶电泳最常用的核酸染色剂。EtBr 的荧光在与双链 RNA 结合后可增加 21 倍,在与双链 DNA 结合后增加 25 倍,因此在低染色浓度(10μg/ml)下无需本底脱色。溴化乙锭已用于大量核酸荧光测定。 它已被证明可与单链 DNA(虽然没有那么强)和三链 DNA 结合。由于它能与 DNA 结合,EtBr 是 DNA 聚合酶的抑制剂。
插入双链 DNA 和 RNA 的移码诱变剂。
插入双链 DNA 和 RNA 的移码诱变剂。
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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Doris Lechner et al.
The Journal of antimicrobial chemotherapy, 62(2), 345-348 (2008-04-24)
One-third of the world's population is infected with the dormant tuberculosis bacillus, and there have been no new antimycobacterial compounds with new modes of action for over 30 years. Extensively drug-resistant tuberculosis is resistant to first- and second-line drugs, which
Selective PCR detection of viable Enterobacter sakazakii cells utilizing propidium monoazide or ethidium bromide monoazide.
Cawthorn DM and Witthuhn RC.
Journal of Applied Microbiology, 105(4), 1178-1185 (2008)
Selective inhibition of the synthesis of mitochondria-associated RNA by ethidium bromide.
E Zylber et al.
Journal of molecular biology, 44(1), 195-204 (1969-08-28)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 46047-25MG-R | 04061835353149 |