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生物源
Escherichia coli (O128:B12)
品質等級
形狀
lyophilized powder
純化經由
gel-filtration chromatography
雜質
<1% Protein
顏色
white to light yellow
溶解度
water: soluble
運輸包裝
ambient
儲存溫度
2-8°C
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一般說明
该产品是从大肠埃希菌血清型O128:B12中提取，并经凝胶过滤纯化。源菌株为CDC 2440-69。
應用
脂多糖（LPS）是革兰氏阴性菌细胞壁的特征性成分。LPS及其脂质A部分可通过Toll样受体4（TLR4）刺激先天免疫系统细胞，TLR4是Toll样受体蛋白家族的成员，它能识别常见的病原体相关分子模式（PAMP）。
生化／生理作用
脂多糖（LPS）位于膜的外层，并且暴露在无包膜菌株的细胞表面。它们有助于维持外层膜的完整性，并保护细胞免受胆汁盐和亲脂性抗生素的破坏。
準備報告
本品溶于水(5 mg/ml)或细胞培养基（1 mg/ml），得到浑浊的淡黄色溶液。以盐水为溶剂时，经过涡旋并加热至70-80 oC后，得到浓度更高但仍然浑浊的溶液（20 mg/ml）。脂多糖分子可在各种溶剂中形成胶束。在水和磷酸盐缓冲盐水中，可观察到混浊的溶液。使用有机溶剂不会得到更澄清的溶液。以甲醇为溶剂将得到含漂浮物的混浊悬浮液，而以水为溶剂将得到均匀的混浊溶液。
訊號詞
Danger
危險聲明
危險分類
Acute Tox. 2 Oral
儲存類別代碼
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
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Explore the structure, function, and diverse applications of Lipopolysaccharides. Discover their role in bacteria, serological specificity, and research potential.
相关内容
Lipopolysaccharide (LPS) is a major component of Gram-negative bacteria, important for microbiological research.
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