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Key Documents

L3129

Sigma-Aldrich

Lipopolysaccharides from Escherichia coli O127:B8

purified by phenol extraction

Synonim(y):

LPS

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About This Item

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

pochodzenie biologiczne

Escherichia coli (O127:B8)

Poziom jakości

Postać

lyophilized powder

oczyszczone przez

phenol extraction

zanieczyszczenia

<3% Protein (Lowry)

kolor

white to faint yellow

rozpuszczalność

water: soluble

Warunki transportu

ambient

temp. przechowywania

2-8°C

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Opis ogólny

This product is phenol extracted from E. coli serotype O127:B8. The source strain is ATCC 12740. This LPS serotype has been used in the study of septic shock and to induce NOS in murine macrophages and PAF synthesis in rat glomerular masangial cells.

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.
This page may contain text that has been machine translated.

Piktogramy

Skull and crossbones

Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Zwroty wskazujące środki ostrożności

Klasyfikacja zagrożeń

Acute Tox. 2 Oral

Kod klasy składowania

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable


Certyfikaty analizy (CoA)

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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

Bo Wang et al.
Brain, behavior, and immunity, 72, 51-60 (2017-12-03)
Our previous study has reported that the proactive secretion and role of central high mobility group box 1 (HMGB1) in lipopolysaccharide-induced depressive behavior. Here, the potential mechanism of HMGB1 mediating chronic-stress-induced depression through the kynurenine pathway (KP) was further explored
Jeffrey A Haspel et al.
Nature communications, 5, 4753-4753 (2014-09-12)
Circadian rhythms are known to regulate immune responses in healthy animals, but it is unclear whether they persist during acute illnesses where clock gene expression is disrupted by systemic inflammation. Here we use a genome-wide approach to investigate circadian gene
Meichun Zeng et al.
Toxicology letters, 271, 26-37 (2017-03-02)
Acute lung injury (ALI) is a common clinical disorder that causes substantial health problems worldwide. An excessive inflammatory response is the central feature of ALI, but the mechanism is still unclear, especially the role of endoplasmic-reticulum (ER) stress and autophagy.
Xavier Brenachot et al.
Nature communications, 8(1), 1820-1820 (2017-11-29)
Obesity-induced inflammation engenders insulin resistance and type 2 diabetes mellitus (T2DM) but the inflammatory effectors linking obesity to insulin resistance are incompletely understood. Here, we show that hepatic expression of Protein Tyrosine Phosphatase Receptor Gamma (PTPR-γ) is stimulated by inflammation
Geoffroy Laumet et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 43(13), 2597-2605 (2018-07-29)
In humans, depression is often associated with low-grade inflammation, activation of the tryptophan/kynurenine pathway, and mild lymphopenia. Preclinical research confirms that inflammation induces depression-like behavior through activation of the tryptophan/kynurenine pathway. However, the mechanisms governing recovery from depression are unknown.

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