Recombinant Human IL-9 (ELISA Std.)

Pricing & Availability
Regulatory Status
RUO
Other Names
Interleukin-9, P40, MCGF, TCGF-3
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RECOM_Hu_IL-9_ELISA_Std_042617
  • RECOM_Hu_IL-9_ELISA_Std_042617
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580401 4 pack $94
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Description

IL-9 was initially identified in mice as a T cell growth factor. Human and murine IL-9 show a 56% amino acid sequence homology. IL-9 is a cytokine that acts as a regulator of a variety of hematopoietic cells, stimulates cell proliferation, and prevents apoptosis. The IL-9 receptor consists of the cytokine-specific IL-9 receptor α-chain (IL-9Rα) and the common γ-chain that is shared by IL-2, IL-4, IL-7, IL-15, and IL-21. IL-9 is expressed by activated Th9, Th17, Tregs, and mast cells and appears to play an important role in the development and function of subsets within the CD4+ T cell lineage. IL-9 also inhibits immune responses by enhancing the suppressive properties of Tregs and by recruiting immunosuppressive mast cells to sites of inflammation. Genetic studies on a mouse model of asthma demonstrated that this cytokine is a key factor in the pathogenesis of bronchial hyperresponsiveness. In this sense, it has been described that IL-9 and IL-9R expression are increased in lungs of asthmatic patients. In addition, IL-9 promotes mast cell mediated intestinal permeability and plays a role in the development of food allergies. IL-9 has also been associated with atopic dermatitis.

Product Details
Technical data sheet

Product Details

Source
Human IL-9, amino acids (Gln19-Ile144) (Accession# NP_000581.1), was expressed in E. coli.
Purity
>98%, as determined by SDS-PAGE, Coomassie stained with Invitrogen SimplyBlue SafeStain.
Formulation
Lyophilized in sterile-filtered PBS, pH 7.2, containing 1% BSA, 0.09% sodium azide, and protease inhibitors.
Endotoxin Level
Less than 0.01ng per µg cytokine as determined by the LAL method.
Concentration
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling
Unopened vials can be stored between 2°C and 8°C until the expiration date. Prior to use, reconstitute the lyophilized powder with 0.2 mL of PBS containing a carrier protein (e.g., 1% BSA, protease free), pH7.4. Re-cap vial, vortex. Allow the reconstituted standard to sit at room temperature for 15 minutes, vortex again to mix completely. The reconstituted standard stock solution can be aliquoted into polypropylene vials and stored at -70°C for up to one month. Do not re-use diluted standards. Avoid repeated freeze/thaw cycles.
Application

ELISA

Recommended Usage

Each lot of this protein is quality control tested by ELISA assay. For use as an ELISA standard, a standard curve comprised of doubling dilutions from 1000 pg/ml to 8 pg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

This IL-9 protein is useful as a standard for a human IL-9 sandwich ELISA, using unlabeled MH9A4 antibody (catalog #507602) for capture and biotinylated MH9A3 antibody (catalog #507702) for detection.

Antigen Details

Cell Sources
Human IL-9
Biology Area
Cell Biology, Stem Cells, Immunology
Molecular Family
Cytokines/Chemokines
Gene ID
16198 View all products for this Gene ID
UniProt
View information about IL-9 on UniProt.org
Go To Top Version: 2    Revision Date: 02/29/2016

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

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