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Merck
CN

L9143

Lipopolysaccharides from Pseudomonas aeruginosa 10

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

Pseudomonas aeruginosa (10)

Quality Level

form

lyophilized powder

purified by

phenol extraction

impurities

<3% Protein (Lowry)

color

white to faint yellow

solubility

water: 4.90-5.10 mg/mL, faintly hazy to hazy, colorless to faintly yellow

shipped in

ambient

storage temp.

2-8°C

General description

This product is phenol extracted from Pseudomonas aeruginosa serotype 10.22 The source strain is ATCC 27316.

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), a member of the Toll-like receptor protein family, which recognizes common pathogen-associated molecular-patterns (PAMPs).

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.


Keiko Yamauchi et al.
International journal of biological sciences, 5(7), 667-678 (2009-11-07)
Azithromycin (AZM), a 15-member macrolide antibiotic, possesses anti-inflammatory activity. Macrophages are important in innate and acquired immunity, and produce pro-inflammatory cytokines such as interleukin (IL)-12, which are composed of subunit p40 and p35. The key function of IL-12 is the
Sudarshan Singh Rathore et al.
Scientific reports, 7(1), 15400-15400 (2017-11-15)
Cryptococcus neoformans infection is quite complex with both host-pathogen interaction and host immune profile determining disease progress and therapeutic outcome. Hence in the present study, the potential utility of (E)-5-benzylidenedihydrofuran-2(3 H)-one (compound-6) was explored as an effective anticryptococcal compound with immunomodulatory
Khaled Taha-Abdelaziz et al.
Veterinary research, 47, 44-44 (2016-03-19)
β-defensins are an important element of the mucosal innate immune response against bacterial pathogens. Tracheal antimicrobial peptide (TAP) has microbicidal activity against the bacteria that cause bovine respiratory disease, and its expression in tracheal epithelial cells is upregulated by bacterial



Global Trade Item Number

SKUGTIN
L9143-10MG04061833275368
L9143-25MG04061833275375
L9143-100MG04061833275351