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L3012

Sigma-Aldrich

Lipopolysaccharides from Escherichia coli O111:B4

Lipopolysaccharides from Escherichia coli O111:B4

purified by gel-filtration chromatography

Sinónimos:

LPS

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5 MG
329,00 €
10 MG
584,00 €
25 MG
1290,00 €

329,00 €


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5 MG
329,00 €
10 MG
584,00 €
25 MG
1290,00 €

About This Item

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

329,00 €


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origen biológico

Escherichia coli (O111:B4)

Nivel de calidad

Formulario

lyophilized powder

purificado por

gel-filtration chromatography

impurezas

<1% Protein

color

white to faint yellow

solubilidad

water: soluble

Condiciones de envío

ambient

temp. de almacenamiento

2-8°C

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Descripción general

This product is extracted from E. coli serotype O111:B4 and purified by gel filtration. 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 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.

Pictogramas

Skull and crossbones

Palabra de señalización

Danger

Frases de peligro

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


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Rong Huang et al.
Bone research, 5, 17019-17019 (2017-12-22)
The activation of M1 macrophages can be achieved by stimulating them with lipopolysaccharide (LPS) and interferon-γ (IFN-γ). However, M1 can be found under physiological conditions without any pathological stimuli. This study aimed to understand the involvement of RANKL-induced M1 macrophages
Matthew G Frank et al.
Brain, behavior, and immunity, 73, 352-363 (2018-05-29)
Exposure to stressors induces anxiety- and depressive-like behaviors, which are mediated, in part, by neuroinflammatory processes. Recent findings demonstrate that treatment with the immunoregulatory and anti-inflammatory bacterium, Mycobacterium vaccae (M. vaccae), attenuates stress-induced exaggeration of peripheral inflammation and stress-induced anxiety-like
Sheng Song et al.
Molecular neurobiology, 56(4), 2653-2669 (2018-07-28)
Environmental toxicant exposure has been strongly implicated in the pathogenesis of Parkinson's disease (PD). Clinical manifestations of non-motor and motor symptoms in PD stem from decades of progressive neurodegeneration selectively afflicting discrete neuronal populations along a caudo-rostral axis. However, recapitulating
Norihiko Takeda et al.
Genes & development, 24(5), 491-501 (2010-03-03)
Hypoxic response and inflammation both involve the action of the hypoxia-inducible transcription factors HIF-1alpha and HIF-2alpha. Previous studies have revealed that both HIF-alpha proteins are in a number of aspects similarly regulated post-translationally. However, the functional interrelationship of these two
Susanne A Wolf et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 23(9), 3121-3128 (2009-05-13)
To understand the link between peripheral immune activation and neuronal precursor biology, we investigated the effect of T-cell activation on adult hippocampal neurogenesis in female C57Bl/6 mice. A peripheral adaptive immune response triggered by adjuvant-induced rheumatoid arthritis (2 microg/microl methylated

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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