产品名称
脂多糖 来源于肠沙门氏菌 肠道血清型, purified by phenol extraction
biological source
Salmonella enterica (Serotype typhimurium)
form
lyophilized powder
purified by
phenol extraction
impurities
<3% Protein (Lowry)
color
white to faint yellow
solubility
water: 4.90-5.10 mg/mL, slightly hazy to turbid, colorless to faintly yellow
shipped in
ambient
storage temp.
2-8°C
Quality Level
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Application
脂多糖（LPS）是革兰氏阴性细菌细胞壁的特征组分。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，Toll样受体 4是Toll样受体蛋白家族的成员，其识别常见的病原体相关分子模式（PAMP）。
Biochem/physiol Actions
脂多糖 (LPS) 定位于膜的外层，在无荚膜的菌株中暴露于细胞表面。它们有助于外膜的完整性，并保护细胞免受胆盐和亲脂性抗生素的操作。
General description
本品为从鼠伤寒沙门菌中提取的苯酚。来源菌株为 ATCC 7823。该 LPS 已被用于诱导大鼠和豚鼠的 NOS。
Preparation Note
本品可溶于水 (5 mg/mL) 或细胞培养基 (1 mg/mL)，得到淡黄色浑浊溶液。涡旋并加热至 70-80 oC 后，在盐水中获得了更浓缩但仍浑浊的溶液 (20 mg/mL)。脂多糖是在每种溶剂中形成胶束的分子。在水和磷酸盐缓冲盐水中观察到浑浊溶液。有机溶剂不能提供更清晰的溶液。甲醇产生浑浊的带有悬浮物的混悬液，而水产生均匀的浑浊溶液。
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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