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L2137

Sigma-Aldrich

Lipopolysaccharides from Salmonella enterica serotype minnesota

purified by gel-filtration chromatography

Sinónimos:

LPS

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About This Item

Número MDL:
Código UNSPSC:
12352201
NACRES:
NA.25

origen biológico

Salmonella enterica (Serotype minnesota)

Nivel de calidad

formulario

lyophilized powder

purificado por

gel-filtration chromatography

impurezas

<1% Protein

color

white

solubilidad

water: 4.90-5.10 mg/mL, cloudy to hazy, colorless

Condiciones de envío

ambient

temp. de almacenamiento

2-8°C

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Descripción general

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).
This product is extracted from Salmonella Minnesota and purified by gel filtration. The source strain is ATCC 9700. Mechanisms of complement activation by LPS of both rough and smooth strains of Salmonella Minnesota were studied by immunoassay of the activation products.

Aplicación


  • TRPV4 is not the molecular sensor for bacterial lipopolysaccharides-induced calcium signaling: This study explores the signaling pathways activated by lipopolysaccharides from Salmonella enterica serotype Minnesota, demonstrating that TRPV4 is not involved, advancing understanding of immune responses to bacterial endotoxins (Wang et al., 2023).

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 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.

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.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Artículos

Explore the structure, function, and diverse applications of Lipopolysaccharides. Discover their role in bacteria, serological specificity, and research potential.

Contenido relacionado

Lipopolysaccharide (LPS) is a major component of Gram-negative bacteria, important for microbiological research.

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