L3024
脂多糖 来源于大肠杆菌 0111:B4
purified by ion-exchange chromatography, TLR ligand tested
别名:
LPS
产品名称
脂多糖 来源于大肠杆菌 0111:B4, purified by ion-exchange chromatography, TLR ligand tested
biological source
Escherichia coli (O111:B4)
form
lyophilized powder
purified by
ion-exchange chromatography
impurities
<1% Protein
<1% RNA
color
white to yellow cast
solubility
water: soluble
shipped in
ambient
storage temp.
2-8°C
Quality Level
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Biochem/physiol Actions
脂多糖（LPS）位于膜的外层，并且在非包封的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作用。
General description
该产品是从大肠杆菌血清型O111：B4中提取的，并已通过离子交换进行纯化。来源菌株来自私人保藏。该LPS血清型已用于刺激B细胞并诱导人肝细胞中的NOS。
Application
脂多糖（LPS）是革兰氏阴性菌细胞壁的特征组分。LPS及其脂质A部分可通过能够识别常见的病原体相关分子模式（PAMP）的Toll样受体蛋白家族成员Toll样受体4（TLR4）刺激先天性免疫系统细胞。
Preparation Note
该产品可溶于水（5mg/mL）或细胞培养基（1mg/mL），并产生浑浊的淡黄色溶液。在涡旋震荡并升温至70-80℃后，可在盐水溶液中获得更加浓缩但仍然浑浊的溶液（20mg/mL）。脂多糖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浑浊的溶液。通过有机溶剂无法获得更澄清的溶液。在甲醇会产生含有漂浮物的混浊悬浮液，而在水中则产生均匀的浑浊溶液。
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)
Yoshitomo Hayama et al.
Journal of immunology (Baltimore, Md. : 1950), 200(11), 3790-3800 (2018-04-25)
Amino acid metabolism plays important roles in innate immune cells, including macrophages. Recently, we reported that a lysosomal adaptor protein, Lamtor1, which serves as the scaffold for amino acid-activated mechanistic target of rapamycin complex 1 (mTORC1), is critical for the
Carl-Fredrik Johnzon et al.
Frontiers in immunology, 9, 1487-1487 (2018-07-11)
Mastitis is an inflammatory condition of the mammary tissue and represents a major problem for the dairy industry worldwide. The present study was undertaken to study how experimentally induced acute bovine mastitis affects inflammatory parameters and changes in the metabolome.
F T Silvestre et al.
Journal of dairy science, 94(5), 2285-2301 (2011-04-29)
The objectives were to evaluate the effects of differential supplementation of Ca salts (CS) of fatty acids (FA) on plasma acute phase proteins and both FA composition and function (i.e., activity and cytokine production) of neutrophils, during the peripartum and
Sharon Elazar et al.
Veterinary research, 41(1), 10-10 (2009-10-16)
Mastitis, inflammation of the mammary tissue, is a common disease in dairy animals and mammary pathogenic Escherichia coli (MPEC) is a leading cause of the disease. Lipopolysaccharide (LPS) is an important virulence factor of MPEC and inoculation of the mammary
Simon N Willis et al.
Nature communications, 8(1), 1426-1426 (2017-11-12)
Humoral immunity requires B cells to respond to multiple stimuli, including antigen, membrane and soluble ligands, and microbial products. Ets family transcription factors regulate many aspects of haematopoiesis, although their functions in humoral immunity are difficult to decipher as a
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