L4524
Lipopolisaccaridi
purified by ion-exchange chromatography, TLR ligand tested
Sinonimo/i:
LPS
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About This Item
Prodotti consigliati
Origine biologica
Escherichia coli (O55:B5)
Livello qualitativo
Forma fisica
lyophilized powder
Purificato mediante
ion-exchange chromatography
Impurezze
<1% Protein
<1% RNA
Colore
white to yellow cast
Solubilità
water: soluble
Condizioni di spedizione
ambient
Temperatura di conservazione
2-8°C
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Descrizione generale
This product is extracted from E. coli serotype O55:B5 and purified by ion exchange. The source strain is CDC 1644-70. The LPS O55:B5 has been used to stimulate human peritoneal macrophages at 1 ng/mL and to stimulate equine peritoneal macrophages at 1-100 ng/mL.
Applicazioni
I lipopolisaccaridi (LPS) sono componenti caratteristici della parete cellulare dei batteri gram negativi. Il LPS e la sua frazione lipide A stimolano le cellule del sistema immunitario innato attraverso il recettore Toll-like 4 (TLR4), un elemento della famiglia delle proteine recettoriali Toll-like, che riconosce i profili molecolari associati ai patogeni (PAMP) comuni.
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
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
N° Catalogo
Descrizione
Determinazione del prezzo
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
Certificati d'analisi (COA)
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