biological source
Escherichia coli (O26:B6)
Quality Level
form
lyophilized powder
purified by
trichloroacetic acid extraction
impurities
1-10% Protein (Lowry)
color
white to yellow
solubility
water: soluble
shipped in
ambient
storage temp.
2-8°C
General description
该产品是从大肠杆菌O26：B6血清型中提取的三氯乙酸。来源菌株为ATCC12795。来自血清型026：B6的LPS是来自大肠杆菌的唯一在SDS-PAGE上表现出短链长行为的LPS。该LPS的短链长度更接近于突变型粗菌株LPS的短链长度。
Application
脂多糖（LPS）是革兰氏阴性细菌细胞壁的特征成分。LPS及其脂质A部分通过Toll样受体4（TLR4）刺激先天免疫系统的细胞，TLR4是Toll样受体蛋白家族的成员，该家族可识别常见的病原体相关分子模式（PAMP）。
Biochem/physiol Actions
脂多糖（LPS）位于膜的外层，并且在非包封的菌株中，其暴露于细胞表面。它们有助于外膜的完整性，并可保护细胞免受胆汁盐和亲脂性抗生素的作用。
Preparation Note
该产品可溶于水（5mg / ml）或细胞培养基（1mg / ml），产生浑浊的淡黄色溶液。当涡旋并升温至70-80 oC后，在盐水中可获得更高浓度的溶液（20mg/ml），但仍然是浑浊的溶液。脂多糖是一种在各种溶剂中都形成胶束的分子。在水和磷酸盐缓冲盐水中可观察到浑浊的溶液。有机溶剂无法使溶液变澄清。甲醇会产生含有漂浮物的混浊悬浮液，而水会产生均匀的混浊溶液。
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signalword
Danger
hcodes
Hazard Classifications
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
ppe
Eyeshields, Gloves, type N95 (US)
商品
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全球贸易项目编号
| 货号 | GTIN |
|---|---|
| L3755-500MG | 04061833952306 |
| L3755-100MG | 04061833952290 |