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Merck

L4391

Sigma-Aldrich

Lipopolysaccharides from Escherichia coli O111:B4

Lipopolysaccharides from Escherichia coli O111:B4

γ-irradiated, BioXtra, suitable for cell culture

Synonim(y):

LPS

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1 MG
461,00 zł

461,00 zł


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1 MG
461,00 zł

About This Item

Numer WE:
Numer MDL:
Kod UNSPSC:
12352211
NACRES:
NA.75

461,00 zł


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pochodzenie biologiczne

Escherichia coli (O111:B4)

Poziom jakości

sterylność

γ-irradiated

linia produktu

BioXtra

Formularz

lyophilized powder

oczyszczone przez

gel-filtration chromatography

warunki przechowywania

desiccated

metody

cell based assay: suitable
cell culture | mammalian: suitable

zanieczyszczenia

<1% Protein (Lowry)

rozpuszczalność

H2O: 5 mg/mL, slightly hazy

Zastosowanie

clinical research
life science and biopharma

temp. przechowywania

2-8°C

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Opis ogólny

Lipopolysaccharides (LPS) are intricate molecules consisting of lipids and polysaccharides, predominantly present in the outer membrane of Gram-negative bacteria. Comprising lipid A, the core oligosaccharide (core), and the O-specific polysaccharide or O antigen (OAg), LPS is anchored to the outer bacterial membrane, with lipid A primarily responsible for its associated toxicity. Functioning as a potent activator of the proinflammatory response, LPS engages various mammalian cells, including macrophages, monocytes, and endothelial cells. While serving a protective role for Gram-negative bacteria against environmental stress, LPS also triggers recognition by the innate immune system during infections.

Zastosowanie

This LPS serotype has been used to stimulate B-cells and induce NOS in human hepatocytes.
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.

LPS is a major constituent of the cell wall of most gram negative bacteria. It is a highly immunogenic antigen with the ability to enhance immune responses to soluble antigens. LPS also acts as a specific mitogen for bone marrow derived B lymphocytes from mice, rabbits, chickens, cows, hamsters, and humans.

Cechy i korzyści

  • High-purity compound suitable for a wide variety of research applications

Rekonstytucja

Lipopolysaccharides are supplied as lyophilized, γ-irradiated powders. To reconstitute, add 1 ml sterile balanced salt solution or tissue culture medium to the vial (1 mg) and gently swirl until the powder dissolves. Reconstituted product may be further diluted to desired working concentrations using sterile balanced salt solution or tissue culture medium.

Inne uwagi

For additional information on our range of Biochemicals, please complete this form.
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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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


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Masz już ten produkt?

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

Odwiedź Bibliotekę dokumentów

Christopher R Shaler et al.
PLoS biology, 15(6), e2001930-e2001930 (2017-06-21)
Superantigens (SAgs) are potent exotoxins secreted by Staphylococcus aureus and Streptococcus pyogenes. They target a large fraction of T cell pools to set in motion a "cytokine storm" with severe and sometimes life-threatening consequences typically encountered in toxic shock syndrome
Jennifer Vandooren et al.
Haematologica, 102(10), 1671-1682 (2017-08-05)
Lipopolysaccharides or endotoxins elicit an excessive host inflammatory response and lead to life-threatening conditions such as endotoxemia and septic shock. Lipopolysaccharides trigger mobilization and stimulation of leukocytes and exaggerated production of pro-inflammatory molecules including cytokines and proteolytic enzymes. Matrix metalloproteinase-9
Chuan Yan et al.
Journal of hepatology, 63(2), 420-428 (2015-04-02)
Chronic inflammation is a major etiological factor for hepatocellular carcinoma (HCC), but how immune cells respond in the initiation of hepatocarcinogenesis remains uncharacterized. This study aims to investigate the response and roles of neutrophils in early hepatocarcinogenesis. By inducible expression
Kelly L Brown et al.
Journal of immunology (Baltimore, Md. : 1950), 186(9), 5497-5505 (2011-03-29)
The human cathelicidin peptide, LL-37, is a host defense peptide with a wide range of immunomodulatory activities and modest direct antimicrobial properties. LL-37 can exert both pro- and anti-inflammatory effects and can modulate the proinflammatory responses of human peripheral blood
Wei Shao et al.
The Journal of biological chemistry, 282(50), 36321-36329 (2007-10-26)
Caspase-1 is an essential effector of inflammation, pyroptosis, and septic shock. Few caspase-1 substrates have been identified to date, and these substrates do not account for its wide range of actions. To understand the function of caspase-1, we initiated the

Produkty

Poznaj strukturę, funkcję i różnorodne zastosowania lipopolisacharydów. Odkryj ich rolę w bakteriach, specyficzność serologiczną i potencjał badawczy.

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

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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