SKU: 37244161364

IL-9 Protein, Human

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Description

IL-9 Protein, HumanProduct Specification Species Human Synonyms Interleukin 9; IL 9; Cytokine P40; T cell growth factor P40; IL9 Accession P15248 Amino Acid Sequence Gln19 Ile144 Expression System E. coli Molecular Weight Approximately 14. 1 kDa, a single non glycosylated polypeptide chain containing 126 amino acids. Purity 97% by SDS PAGE or HPLC. Conjugation Unconjugated Physical Appearance Lyophilized Powder Storage Buffer 20 mM PB, with 150 mM NaCl, pH 7. 4.

Product Specification


Species Human
Synonyms Interleukin-9;IL-9;Cytokine P40;T-cell growth factor P40;IL9
Accession P15248
Amino Acid Sequence

Gln19-Ile144

Expression System E.coli
Molecular Weight

Approximately 14.1 kDa, a single non-glycosylated polypeptide chain containing 126 amino acids.

Purity >97% by SDS-PAGE or HPLC.
Conjugation Unconjugated
Physical Appearance Lyophilized Powder
Storage Buffer

20 mM PB, with 150 mM NaCl, pH 7.4.

Reconstitution

Before use this product, please read the direction below carefully.

This vial must be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in a 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℃.

Further dilutions should be made in appropriate buffered solutions.

Stability & Storage

For long term storage, the product should be stored ≤ -20℃.
Please avoid repeated freeze-thaw cycles after reconstitution.
12 months from date of receipt, -20 to -70℃ as supplied.
1 month, 2 to 8℃ under sterile conditions after reconstitution.
3 months, -20 to -70℃ under sterile conditions after reconstitution.

Background

Interleukin-9 (IL-9) is encoded by the IL9 gene and produced by T-cells and specifically by CD4+ helper cells. IL-9 is an immunoregulatory cytokine enhances the proliferation of T lymphocytes, mast cells, erythroid precursor cells and megakaryoblastic leukemia cell lines. Over-expression of IL-9 has been implicated in the pathogenesis of anaplastic lymphoma and Hodgkin’s disease. Whereas murine IL-9 can function on human cells, human IL-9 is inactive on mouse cells. Recombinant Human IL-9 is a 14.1kDa protein of 126 amino acid, including 10 cysteine that are fully conserved between the human and murine proteins.

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Exchange/Return Notes
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SKU: 37244161364

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ciera cox
Battle Creek, US
★★★★★ 5
Give me 100 more!
Color: Green, Size: 6, Color: Green, Size: 6
ADORABLE. perfect fit, amazing strong structured material. I’ll take one in every color!
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Reviewed in the United States on March 2, 2026
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Julio D. Portillo
Dallas, US
★★★★★ 5
Adorable!!!
Color: Green, Size: 3, Color: Green, Size: 3
This suit is adorable! I got it in 2 colors. Made the perfect Christmas picture outfits. The quality is great. I got them 1 size up so they could fit in it longer, and size up was a little big as expected. Im happy they will fit in them for another year.
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Reviewed in the United States on January 15, 2026
E
Verified Purchase
Elizabeth Johnson
Battle Creek, US
★★★★★ 4
Well made and very nice material.
Color: Dark Brown, Size: 10
This is a great suit the quality material and the color is better than expected. The slacks have waist adjustments that help with comfort. Definitely worth the price. I give it 4 stars because it was supposed to be a slim fit but the jacket is really loose and not as form fitting as I expected, however the suit is worth the price. My son loves it ! Color is perfect for him!
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Reviewed in the United States on December 27, 2025
M
Verified Purchase
Mayraa
Cuba, US
★★★★★ 1
Returned ...
Color: Dark Brown, Size: 20
I ordered the dark brown suit which my son loved. once I looked closely there seemed to be cat hair on it, it looks like it was washed as well, which caused the material to rise and become damaged.
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Reviewed in the United States on April 15, 2026
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Verified Purchase
Machel Moss
Lake Worth, US
★★★★★ 5
Highly recommend!
Color: Dark Brown, Size: 16
Perfect fit for my 13 year old! The quality and color of the suit was spot on to the description.
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Reviewed in the United States on May 14, 2026

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