L3024

Lipopolysaccharides from Escherichia coli O111:B4

purified by ion-exchange chromatography, TLR ligand tested

• Sinónimos: LPS
• Número de CAS: 93572-42-0
• Número CE: 297-473-0
• Número MDL: MFCD00164401
• Código UNSPSC: 12352201
• NACRES: NA.25

Propiedades

• origen biológico: Escherichia coli (O111:B4)
• Nivel de calidad: 200
• Formulario: lyophilized powder
• purificado por: ion-exchange chromatography
• impurezas: <1% Protein; <1% RNA
• color: white to yellow cast
• solubilidad: water: soluble
• Condiciones de envío: ambient
• temp. de almacenamiento: 2-8°C

Descripción

Descripción general

This product is extracted from E. coli serotype O111:B4 and purified by ion exchange. The source strain is from a private collection. This LPS serotype has been used to stimulate B-cells and induce NOS in human hepatocytes.

Aplicación

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).

Acciones bioquímicas o fisiológicas

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 de preparación

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 °C. 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.

Otras notas

To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Información de seguridad

• Pictogramas: GHS06
• Palabra de señalización: Danger
• Frases de peligro: H300
• Consejos de prudencia: P264 - P270 - P301 + P310 - P405 - P501
• Clasificaciones de peligro: Acute Tox. 2 Oral
• Código de clase de almacenamiento: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Gloves, type N95 (US)