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Key Documents

L9516

Sigma-Aldrich

Lipopolysaccharides (rough strains) from Salmonella enterica serotype typhimurium SL1181

Synonyme(s) :

LPS

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About This Item

Numéro MDL:
Code UNSPSC :
12352201

Source biologique

Salmonella enterica (Serotype typhimurium SL1181)

Forme

lyophilized powder

Impuretés

≤5% Protein (Lowry)

Conditions d'expédition

ambient

Température de stockage

2-8°C

Description générale

This product is phenol:chloroform:petroleum ether extracted from Salmonella typhimurium strain SL1181. The source strain is from a private collection. This LPS has been used as a negative control for antibody binding to LPS.

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

Prepared by phenol-chloroform-petroleum ether extraction.

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.

Code de la classe de stockage

13 - Non Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Anthony R Geonnotti et al.
AIDS research and human retroviruses, 26(3), 279-291 (2010-03-12)
Bacterial lipopolysaccharide (endotoxin) is a frequent contaminant of biological specimens and is also known to be a potent inducer of beta-chemokines and other soluble factors that inhibit HIV-1 infection in vitro. Though lipopolysaccharide (LPS) has been shown to stimulate the
Revathi Shanmugasundaram et al.
Poultry science, 98(3), 1127-1133 (2018-10-17)
This study was conducted to identify the effects of 25-OH cholecalciferol supplementation to turkeys on the immune cells parameters, fecal coccidial oocyst shedding, macrophage nitric oxide production, T regulatory cell cytokine production, and production parameters during a coccidial challenge. A
Aurélie Le Page et al.
Journal of Alzheimer's disease : JAD, 60(1), 23-42 (2017-08-05)
The mechanisms of neurodegeneration in Alzheimer's disease (AD) remain under investigation. Alterations in the blood-brain barrier facilitate exchange of inflammatory mediators and immune cells between the brain and the periphery in AD. Here, we report analysis of phenotype and functions
Sandra Jansen et al.
Infection and immunity, 81(5), 1788-1797 (2013-03-13)
The expression and function of psoriasin in the brain have been insufficiently characterized. Here, we show the induction of psoriasin expression in the central nervous system (CNS) after bacterial and viral stimulation. We used a pneumococcal meningitis in vivo model

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