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Merck
CN

L6011

Lipopolysaccharides from Salmonella enterica serotype enteritidis

purified by phenol extraction

Synonym(s):

LPS

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About This Item

UNSPSC Code:
12352201
NACRES:
NA.25
MDL number:
Technical Service
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biological source

Salmonella enterica (Serotype enteritidis)

Quality Level

form

lyophilized powder

purified by

phenol extraction

impurities

<3% Protein (Lowry)

color

white to faint yellow

solubility

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

shipped in

ambient

storage temp.

2-8°C

General description

This product is phenol extracted from Salmonella enteritidis. The source strain is ATCC 13076. Lipopolysaccharide from Salmonella enteritidis is mutagenic in murine spleen cells and causes a plaque-forming response in those cells.

Application

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).

Biochem/physiol Actions

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.

Preparation Note

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.

Other Notes

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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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Articles

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


G Wildbaum et al.
The Journal of clinical investigation, 106(5), 671-679 (2000-09-07)
This study used naked DNA vaccination to induce breakdown of tolerance to self and thus elicit immunological memory to native, membrane-bound Fas ligand (FasL). Upon induction of experimental autoimmune encephalomyelitis (EAE), this memory was turned on to provide protective immunity.
Sofia Agelaki et al.
Infection and immunity, 70(11), 6068-6074 (2002-10-16)
Corticotropin-releasing hormone (CRH) exerts an anti-inflammatory effect indirectly, via cortisole production, and a proinflammatory effect directly on immune cells. The aim of the present work was to examine the effect of CRH on macrophage-derived cytokines both in vitro and in
Roua Abulkassim et al.
Journal of neuroimmunology, 295-296, 139-147 (2016-05-29)
Proteinase-activated receptor-2 (PAR2) is widely expressed in the CNS but whether it plays a key role in inflammation-related behavioural changes remains unknown. Hence, in the present study we have examined whether PAR2 contributes to behaviour associated with systemic inflammation using



Global Trade Item Number

SKUGTIN
L6011-25MG04061833958582
L6011-100MG04061833275009