产品说明
一般描述
This product is phenol:chloroform:petroleum ether extracted from E. coli F 583 (Rd mutant). The source strain is from a private collection.
包装
5, 10 mg in glass bottle
应用
Lipopolysaccharides (LPSs) are characteristic components of the cell wall of Gram-negative bacteria. LPS and its lipid A moiety stimulate cells of the innate immune system by the Toll-like receptor 4 (TLR4), a member of the Toll-like receptor protein family, which recognizes common pathogen-associated molecular-patterns (PAMPs).
生化/生理作用
Lipopolysaccharides (LPS) are localized in the outer layer of the membrane and are, in noncapsulated strains, exposed on the cell surface. They contribute to the integrity of the outer membrane, and protect the cell against the action of bile salts and lipophilic antibiotics.
制备说明
Prepared by phenol-chloroform-petroleum ether extraction.
The product is soluble in water (5 mg/ml) or cell culture medium (1 mg/ml) yielding a hazy, faint yellow solution. A more concentrated, though still hazy, solution (20 mg/ml) has been achieved in aqueous saline after vortexing and warming to 70-80 oC. Lipopolysaccharides are molecules that form micelles in every solvent. Hazy solutions are observed in water and phosphate buffered saline. Organic solvents do not give clearer solutions. Methanol yields a turbid suspension with floaters, while water yields a homogeneously hazy solution.
基本信息
| EC 号 | 297-473-0 |
| MDL编号 | MFCD00164401 |
| NACRES | NA.25 |
产品性质
| 质量水平 | 200 |
| 生物来源 | Escherichia coli (F583 Rd mutant) |
| 形式 | lyophilized powder |
| 杂质 | <3% Protein (Lowry) |
| 运输 | ambient |
| 储存温度 | 2-8℃ |
安全信息
| 象形图 |  |
| 警示用语： | Danger |
| 危险声明 | H300 |
| 预防措施声明 | P264 - P270 - P301 + P310 - P405 - P501 |
| 危险分类 | Acute Tox. 2 Oral |
| 储存分类代码 | 6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
