This product (lipopolysaccharide from E. coli O111:B4) is classified as a smooth (S-type) lipopolysaccharide. Please see the link below to review a publication that may be helpful:
https://www.ncbi.nlm.nih.gov/books/NBK554414/
Fortfahren mit
Größe auswählen
| Packungsgröße | SKU | Verfügbarkeit | Preis |
|---|---|---|---|
| 10 mg | Warenkorb auf Verfügbarkeit prüfen | € 75,20 | |
| 25 mg | Warenkorb auf Verfügbarkeit prüfen | € 149,00 | |
| 100 mg | Warenkorb auf Verfügbarkeit prüfen | € 360,00 |
Über diesen Artikel
biological source
Escherichia coli (O111:B4)
Quality Segment
form
lyophilized powder
purified by
phenol extraction
technique(s)
ELISA: suitable, cell based assay: suitable, ligand binding assay: suitable
impurities
≤3.00% protein (Lowry-TCA)
color
off-white to faint yellow
solubility
water: soluble
application(s)
cell analysis
clinical research
life science and biopharma
shipped in
ambient
storage temp.
2-8°C
General description
Dieses Produkt wird mit Phenol aus Escherichia coli Serotyp O111:B4 extrahiert. Der für die Herstellung verwendete Stamm stammt aus einer Privatsammlung. Dieser LPS-Serotyp wurde zur Stimulation von B-Zellen und zur Induktion von NOS (Stickoxid-Synthase) in humanen Hepatozyten eingesetzt.
Application
- zur Stimulation von Makrophagen
- für die LPS-Vorkonditionierung bei Mäusen
- zur Auslösung einer akuten Nierenschädigung bei Mäusen
- zur Auslösung eines akuten Atemnotsyndroms (ARDS) bei Mäusen zur Untersuchung der entzündungshemmenden Wirkung von aus mesenchymalen Stammzellen des Knochenmarks (BMSCs) gewonnenen Exosomen[3]
- zur Auslösung eines hyperinflammatorischen Zustands bei mit dem schweren akuten respiratorischen Syndrom Coronavirus 2 (SARS-CoV-2) infizierten Mäusen
Biochem/physiol Actions
Preparation Note
Other Notes
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| technique(s) ELISA: suitable, ligand binding assay: suitable, cell based assay: suitable | technique(s) cell based assay: suitable | technique(s) cell based assay: suitable, cell culture | mammalian: suitable | technique(s) - |
| biological source Escherichia coli (O111:B4) | biological source Escherichia coli (O55:B5) | biological source Escherichia coli (O111:B4) | biological source Escherichia coli (O127:B8) |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 200 |
| solubility water: soluble | solubility water: soluble | solubility H2O: 5 mg/mL, slightly hazy | solubility water: soluble |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form lyophilized powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
Still not finding the right product?
Explore all of our products under Lipopolysaccharide aus Escherichia coli O111:B4
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Oral
Lagerklasse
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Hier finden Sie alle aktuellen Versionen:
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Artikel
Explore the structure, function, and diverse applications of Lipopolysaccharides. Discover their role in bacteria, serological specificity, and research potential.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| L2630-25MG | 04061838446251 |
| L2630-100MG | 04061838446237 |
| L2630-10MG | 04061838446244 |
-
Is this product considered a rough strain or smooth strain?
1 answer-
Helpful?
-
-
Can I resuspend this LPS in PBS instead of water, without hindering its performance ?
1 answer-
This product can be resuspended in PBS instead of water. Both water and PBS are suitable solvents, and a hazy solution will form in either.
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
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/418/501/product-dating-information-06-25-mk.pdfHelpful?
-
-
When I compared COAs of two batches of LPS (L2630) we have been using, I realized the potency of the newer one is 10-fold higher than the older one (30000000 and 3000000 EU/mg). Is it common for LPS that different lots have such different potency?
1 answer-
Significant lot-to-lot variability in potency is quite normal for this product. It is a somewhat crude phenol extract; it is not chromatographically purified. That is, a chromatographically purified LPS such as Product L3012 would be expected to have better lot-to-lot consistency. Note that for both this product and L3012, the potency specification is greater than or equal to 500,000 Endotoxin units per milligram (EU/mg); there is a lower limit, but there is no upper limit.
Helpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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?
-
-
Is there any harm in filter sterilizing a solution with this LPS before using it in cell culture or animals? Meaning does it change or lose potency if it is sterile filtered say through a 0.2 micron filter?
1 answer-
Sterile filtration should not affect the concentration or properties of the solution if the LPS is fully dissolved, but please keep in mind that this is a research-grade material that has not been best tested on animals. For a cell culture grade material that has already been γ-irradiated, please consider the following: https://www.sigmaaldrich.com/product/sigma/l4391
Helpful?
-
-
I received LPS L2630 at Room Temperature. Is it ok to keep it at Room Temperature before reconstitution, although recommendations are to store it between 2-8 C?
1 answer-
This product ships routinely at ambient temperature and is stable up to 2 weeks to allow for transit time. The item is to be stored at 2-8°C when received.
Please see the link below to review the product storage and shipping guidelines:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/232/426/storage-transport-conditions-ms.pdfHelpful?
-
-
Is product L2630 suitable for use in mammalian cell culture?
1 answer-
Specific testing or validation for the use of product L2630 in mammalian cell culture has not been conducted.
Helpful?
-
-
Hi i recieved L2630 10mg Lipopolysaccharides from Escherichia coli O111:B4 i will used in experimental work. how i will dilute it
1 answer-
The product is soluble in water (5 mg/mL) or cell culture medium (1 mg/mL). Please see the link below to review additional preparation and storage information:
https://www.sigmaaldrich.com/US/en/technical-documents/protocol/clinical-testing-and-diagnostics-manufacturing/bacteriology/lipopolysaccharidesHelpful?
-
-
What is the purity level of this product ? is it ultrapure? 100% pure LPS ?
1 answer-
This product is not tested for purity. However, it is tested for potency on a lot-specific basis.
Kindly review a sample CoA accessible at this link: https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/L2630-VAR0000271356.pdf
Helpful?
-

