Recombinant Human IL9 protein

• Cat.No.: IL9-67H
• Product Overview: Recombinant Human IL9 protein was expressed in Escherichia coli.

Specification

• Description: Interleukin-9 (IL-9) is encoded by the IL9 gene and produced by T-cells and specifically by CD4+ helper cells. IL-9 was originally identified as a cytokine found in the conditioned medium of a human T cell leukemia virus type I (HTLVI) transformed T cell line. It functions through the IL-9 receptor, which activates different signal transducer and activator (STAT) proteins and thus connects this cytokine to various biological processes. IL-9 can support the growth of IL-2 independent and IL-4 independent helper T-cells. Human IL-9 has approximately 56 % amino acid sequence identity with murine IL-9. The gene encoding this cytokine has been identified as a candidate gene for asthma. Genetic studies on a mouse model of asthma demonstrated that this cytokine is a determining factor in the pathogenesis of bronchial hyper-responsiveness.
• Source: E.coli
• Species: Human
• Form: Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4.
• Bio-activity: Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human MO7e cells is less than 0.2 ng/ml, corresponding to a specific activity of > 5.0 × 10⁶ IU/mg.
• Molecular Mass: Approximately 14.1 kDa, a single non-glycosylated polypeptide chain containing 126 amino acids.
• Protein length: 126
• AA Sequence: QGCPTLAGILDINFLINKMQEDPAS KCHCSANVTSCLCLGIPSDNCTRPC FSERLSQMTNTTMQTRYPLIFSRVK KSVEVLKNNKCPYFSCEQPCNQTTA GNALTFLKSLLEIFQKEKMRGMRGK I
• Endotoxin: Less than 1 EU/µg of rHuIL-9 as determined by LAL method.
• Purity: >95% by SDS-PAGE and HPLC analysis.
• Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70 centigrade as supplied. 1 month, 2 to 8 centigrade under sterile conditions after reconstitution. 3 months, -20 to -70 centigrade under sterile conditions after reconstitution.
• Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤-20 centigrade. Further dilutions should be made in appropriate buffered solutions.
• Tag: Non

Gene Information

• Gene Name: IL9
• Official Symbol: IL9
• Synonyms: IL9; interleukin 9; interleukin-9; homolog of mouse T cell and mast cell growth factor 40; HP40; IL 9; P40; p40 cytokine; p40 T cell and mast cell growth factor; T cell growth factor p40; cytokine P40; T-cell growth factor p40; p40 T-cell and mast cell growth factor; IL-9
• Gene ID: 3578
• mRNA Refseq: NM_000590
• Protein Refseq: NP_000581
• MIM: 146931
• UniProt ID: P15248

Reviews

08/04/2022

The anti-interference ability of IL9 was excellent in Western blot, which avoided the interference problem in the experiment.

04/14/2019

This protein has high catalytic efficiency, high safety and high expression level, and is a precious resource in the field of scientific research.

02/28/2019

The reproducibility of IL9 is very good, which can reduce the error in the experiment and improve the repeatability of the experiment.

Q&As

How is the clinical trial of IL9 progressing?

Several clinical trials are currently underway to evaluate the safety and effectiveness of IL9 in treating conditions such as asthma and allergies. However, the research is still in its early stages and more data are needed.

How to obtain IL9?

IL9 can be synthesized in the laboratory by biotechnological methods. Before clinical use, it needs to go through strict quality control and testing.

What is the action mechanism of IL9?

By binding to specific receptors, IL9 can activate relevant signaling pathways and regulate the development and function of immune cells. It can affect the activity of a variety of immune cells, such as T cells and macrophages.

Howthe relationship between IL9 and other related cytokines?

IL9 has cross-action with other cytokines, which can regulate the expression and function of each other. For example, IL9 can promote the production of IL4 and IL13, and IL4 and IL13 can also promote the secretion of IL9.

What are the clinical applications of IL9?

IL9 can be used to treat certain inflammatory diseases, such as asthma and skin allergies. It can regulate the response of the immune system and reduce the symptoms of related diseases.

What is the mechanism of action of IL9 in the treatment of asthma?

The mechanism of action of IL9 in asthma treatment is not fully understood, but studies have shown that it can reduce the infiltration of inflammatory cells and the release of inflammatory mediators, thereby reducing the symptoms of asthma.