L3012
Lipopolysaccharides from Escherichia coli O111:B4
purified by gel-filtration chromatography
Synonyme(s) :
LPS
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About This Item
Produits recommandés
Source biologique
Escherichia coli (O111:B4)
Niveau de qualité
Forme
lyophilized powder
Produit purifié par
gel-filtration chromatography
Impuretés
<1% Protein
Couleur
white to faint yellow
Solubilité
water: soluble
Conditions d'expédition
ambient
Température de stockage
2-8°C
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Description générale
This product is extracted from E. coli serotype O111:B4 and purified by gel filtration. The source strain is from a private collection. This LPS serotype has been used to stimulate B-cells and induce NOS in human hepatocytes.
Application
Les lipopolysaccharides (LPS) sont des éléments constitutifs caractéristiques de la paroi cellulaire des bactéries à Gram négatif. Les LPS et leur fraction lipidique (lipide A) stimulent les cellules du système immunitaire inné par l'intermédiaire du récepteur TLR4 (Toll-Like Receptor 4), qui appartient à la famille des récepteurs de type Toll et qui reconnaît la signature moléculaire des principaux agents pathogènes (PAMP).
Actions biochimiques/physiologiques
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.
Notes préparatoires
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.
Autres remarques
To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.
Produit(s) apparenté(s)
Réf. du produit
Description
Tarif
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Acute Tox. 2 Oral
Code de la classe de stockage
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Certificats d'analyse (COA)
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