生物来源
Escherichia coli (O55:B5)
质量水平
形式
lyophilized powder
纯化方式
ion-exchange chromatography
杂质
<1% Protein
<1% RNA
颜色
white to yellow cast
溶解性
water: soluble
运输
ambient
储存温度
2-8°C
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一般描述
本产品是从大肠杆菌血清型 O55：B5 中提取而来，并通过离子交换进行了纯化。源菌株是 CDC 1644-70。LPS O55：B5 已用于刺激人腹膜巨噬细胞，以 1 ng/mL 的浓度，并以 1-100 ng/mL 的浓度刺激马腹膜巨噬细胞。
应用
脂多糖（LPS）是革兰氏阴性细菌细胞壁的特征组分。脂多糖及其脂质 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）。
生化/生理作用
脂多糖（LPS）位于膜的外层，并且在非包膜菌株中暴露在细胞表面上。它们有助于外膜的完整性，并保护细胞免受胆汁盐和亲脂性抗生素的影响。
制备说明
产物可溶于水（5mg/ml）或细胞培养基（1mg/ml），产生模糊的淡黄色溶液。在涡旋，并升温至 70-80 oC 后，在含水盐水中得到更浓缩但仍然浑浊的溶液（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的溶液。有机溶剂不能提供更澄清的溶液。甲醇产生具有漂浮物的浑浊悬浮液，而水产生均匀浑浊溶液。
相关产品
产品编号
说明
价格
警示用语：
Danger
危险声明
危险分类
Acute Tox. 2 Oral
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
Arij Faksh et al.
Pediatric research, 79(3), 391-400 (2015-11-06)
Antenatal inflammation and preterm birth are associated with the development of airway diseases such as wheezing and asthma. Utilizing a newborn mouse model, we assessed the effects of maternal inflammation and postnatal hyperoxia on the neonatal airway. Pregnant C57/Bl6 dams
Hung-Yen Chou et al.
PloS one, 13(5), e0196890-e0196890 (2018-05-09)
The purple sea urchin, Strongylocentrotus purpuratus, has a complex and robust immune system that is mediated by a number of multi-gene families including the SpTransformer (SpTrf) gene family (formerly Sp185/333). In response to immune challenge from bacteria and various pathogen-associated
Laura B Fanning et al.
PloS one, 8(2), e57007-e57007 (2013-02-23)
Leukocyte Immunoglobulin-like Receptor B4 (LILRB4) null mice have an exacerbated T helper cell type 2 (Th2) immune response and pulmonary inflammation compared with Lilrb4(+/+) animals when sensitized intranasally with ovalbumin (OVA) and low-dose lipopolysaccharide (LPS) followed by challenge with OVA.
Ryoichi Ishibashi et al.
Scientific reports, 6, 25955-25955 (2016-05-18)
Kidney diseases including diabetic nephropathy have become huge medical problems, although its precise mechanisms are still far from understood. In order to increase our knowledge about the patho-physiology of kidney, we have previously identified >300 kidney glomerulus-enriched transcripts through large-scale
Kuppusamy Balamurugan et al.
Nature communications, 4, 1662-1662 (2013-04-12)
Toll-like receptor 4 (Tlr4) has a pivotal role in innate immune responses, and the transcription factor CCAAT/enhancer binding protein delta (C/EBPδ, Cebpd) is a Tlr4-induced gene. Here we identify a positive feedback loop in which C/EBPδ activates Tlr4 gene expression
商品
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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