L6893
Lipopolysaccharides (rough strains) from Escherichia coli F583 (Rd mutant)
Sinonimo/i:
LPS
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About This Item
Prodotti consigliati
Origine biologica
Escherichia coli (F583 Rd mutant)
Livello qualitativo
Stato
lyophilized powder
Impurezze
<3% Protein (Lowry)
Colore
white to yellow cast
Solubilità
water: 4.90-5.10 mg/mL, cloudy to turbid, colorless to faintly yellow
Condizioni di spedizione
ambient
Temperatura di conservazione
2-8°C
Categorie correlate
Descrizione generale
This product is phenol:chloroform:petroleum ether extracted from E. coli F 583 (Rd mutant). The source strain is from a private collection.
Applicazioni
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).
Azioni biochim/fisiol
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.
Nota sulla preparazione
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.
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.
Altre note
To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Prodotti correlati
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Acute Tox. 2 Oral
Codice della classe di stoccaggio
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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