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L3024

Sigma-Aldrich

Lipopolisaccaridi

purified by ion-exchange chromatography, TLR ligand tested

Sinonimo/i:

LPS

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5 MG
CHF 314.00
10 MG
CHF 572.00
25 MG
CHF 1’290.00

CHF 314.00

Spedizione prevista il28 maggio 2025

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Cambia visualizzazione
5 MG
CHF 314.00
10 MG
CHF 572.00
25 MG
CHF 1’290.00

About This Item

Numero CAS:
93572-42-0
Numero CE:
297-473-0
Numero MDL:
MFCD00164401
Codice UNSPSC:
12352201
NACRES:
NA.25

CHF 314.00

Spedizione prevista il28 maggio 2025

Richiedi un ordine bulk

Origine biologica

Escherichia coli (O111:B4)

Livello qualitativo

200

Stato

lyophilized powder

Purificato mediante

ion-exchange chromatography

Impurezze

<1% Protein
<1% RNA

Colore

white to yellow cast

Solubilità

water: soluble

Condizioni di spedizione

ambient

Temperatura di conservazione

2-8°C

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Descrizione generale

This product is extracted from E. coli serotype O111:B4 and purified by ion exchange. The source strain is from a private collection. This LPS serotype has been used to stimulate B-cells and induce NOS in human hepatocytes.

Applicazioni

I lipopolisaccaridi (LPS) sono componenti caratteristici della parete cellulare dei batteri gram negativi. Il LPS e la sua frazione lipide A stimolano le cellule del sistema immunitario innato attraverso il recettore Toll-like 4 (TLR4), un elemento della famiglia delle proteine recettoriali Toll-like, che riconosce i profili molecolari associati ai patogeni (PAMP) comuni.

Azioni biochim/fisiol

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 sulla preparazione

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 °C. 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.

Altre note

To gain a comprehensive understanding of our extensive range of Lipopolysaccharides for your research, we encourage you to visit our Carbohydrates Category page.

Pittogrammi

Skull and crossbones
GHS06

Avvertenze

Danger

Indicazioni di pericolo

H300

Classi di pericolo

Acute Tox. 2 Oral

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)

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Certificati d'analisi (COA)

Lot/Batch Number
0000417198
0000417198
0000417197
0000417197
0000417195

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F T Silvestre et al.
Journal of dairy science, 94(5), 2285-2301 (2011-04-29)
The objectives were to evaluate the effects of differential supplementation of Ca salts (CS) of fatty acids (FA) on plasma acute phase proteins and both FA composition and function (i.e., activity and cytokine production) of neutrophils, during the peripartum and
Yoshitomo Hayama et al.
Journal of immunology (Baltimore, Md. : 1950), 200(11), 3790-3800 (2018-04-25)
Amino acid metabolism plays important roles in innate immune cells, including macrophages. Recently, we reported that a lysosomal adaptor protein, Lamtor1, which serves as the scaffold for amino acid-activated mechanistic target of rapamycin complex 1 (mTORC1), is critical for the
Carl-Fredrik Johnzon et al.
Frontiers in immunology, 9, 1487-1487 (2018-07-11)
Mastitis is an inflammatory condition of the mammary tissue and represents a major problem for the dairy industry worldwide. The present study was undertaken to study how experimentally induced acute bovine mastitis affects inflammatory parameters and changes in the metabolome.
Sharon Elazar et al.
Veterinary research, 41(1), 10-10 (2009-10-16)
Mastitis, inflammation of the mammary tissue, is a common disease in dairy animals and mammary pathogenic Escherichia coli (MPEC) is a leading cause of the disease. Lipopolysaccharide (LPS) is an important virulence factor of MPEC and inoculation of the mammary
Simon N Willis et al.
Nature communications, 8(1), 1426-1426 (2017-11-12)
Humoral immunity requires B cells to respond to multiple stimuli, including antigen, membrane and soluble ligands, and microbial products. Ets family transcription factors regulate many aspects of haematopoiesis, although their functions in humoral immunity are difficult to decipher as a
Visualizza tutti i documenti correlati

Articoli

Lipopolysaccharides for Research – Structure, Function & Applications

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

Contenuto correlato

Lipopolysaccharides

Lipopolysaccharide (LPS) is a major component of Gram-negative bacteria, important for microbiological research.

Questions

1–4 of 4 Questions  

  1. 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

      Helpful?

  2. 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

      Helpful?

  3. what is the molecular weight of LPS catalog #L3024?

    1 answer

    1. The molecular weight of this product has not been determined. In general, the molecular weight of native LPS may range from 1 – 4 million Daltons or higher. When treated with SDS and heat, the molecular weight of LPS may range from 50 to 100 kDa.

      Helpful?

  4. Does the product represent lipid A of LPS with six-acyl chain (hexa-acylated) ?

    1 answer

    1. L3024 is an LPS that contains the lipid A moiety. LPS products that are described as "detoxified" have a lipid A moiety that has been partially delipidated by alkaline hydrolysis. Removal of the fatty acid portions of lipid A results in a detoxified LPS with an endotoxin level about 10,000 times lower than that of the parent LPS. This product is not detoxified.

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