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L7261

Sigma-Aldrich

Lipopolysaccharides from Salmonella enterica serotype typhimurium

purified by trichloroacetic acid extraction

Synonim(y):

LPS

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About This Item

Numer MDL:
Kod UNSPSC:
12352201
NACRES:
NA.25

pochodzenie biologiczne

Salmonella enterica (Serotype typhimurium)

Poziom jakości

Formularz

lyophilized powder

oczyszczone przez

trichloroacetic acid extraction

zanieczyszczenia

1-10% Protein (Lowry)

kolor

white to faint yellow

rozpuszczalność

water: 0.90-1.10 mg/mL, faintly hazy to hazy, colorless to faintly yellow

Warunki transportu

ambient

temp. przechowywania

2-8°C

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Opis ogólny

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.

Zastosowanie

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).

Działania biochem./fizjol.

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.

Uwaga dotycząca przygotowania

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.

Inne uwagi

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

11 - Combustible Solids

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Gloves, type N95 (US)


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