Merck
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L7261

Sigma-Aldrich

Lipopolysaccharides from Salmonella enterica serotype typhimurium

purified by trichloroacetic acid extraction

Synonym(s):
LPS
Número MDL:
NACRES:
NA.25

Nível de qualidade

200

fonte biológica

Salmonella enterica (Serotype typhimurium)

forma

lyophilized powder

purificado por

trichloroacetic acid extraction

Impurezas

1-10% Protein (Lowry)

enviado em

ambient

temperatura de armazenamento

2-8°C

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Descrição geral

This product is TCA extracted from Salmonella typhimurium. The source strain is ATCC 7823. This LPS serotype has been used to induce NOS in rats and guinea pigs.

Embalagem

10 mg in poly bottle
25, 100 mg in glass bottle

Aplicação

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).

Ações bioquímicas/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 preparo

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.

Código de classe de armazenamento

13 - Non Combustible Solids

WGK

WGK 3

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

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Certificate of Origin

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