Recombinant Human IL-9 Protein (RP02891)

Overview

Product name	Recombinant Human IL-9 Protein
Catalog No.	RP02891
Description	Recombinant Human IL-9 Protein is produced by HEK293 cells expression system. The target protein is expressed with sequence (Gln19-Ile144) of human IL9 (Accession #NP_000581.1) fused with and no tag.
Bio-Activity	Measured in a cell proliferation assay using M07e human megakaryocytic leukemic cells. The ED50 for this effect is 0.28-1.12 ng/mL, corresponding to a specific activity of 8.9×10⁵~3.6×10⁶ units/mg.
Endotoxin	<0.1EU/μg of the protein by LAL method.
Formulation	Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4.
Species	Human
Calculated MW	14.12 kDa

Interleukin 9, also known as IL-9, is a cytokine (cell signaling molecule) belonging to the group of interleukins. IL-9 is a cytokine that acts as a regulator of a variety of hematopoietic cells. This cytokine stimulates cell proliferation and prevents apoptosis. It functions through the interleukin 9 receptor (IL-9R), which activates different signal transducer and activator (STAT) proteins and thus connects this cytokine to various biological processes.

Product information

Synonym	P40; HP40; IL-9；IL9
Expression Host	HEK293 cells
Tag	NO-tag
Swiss-Prot
Gene ID

Usage guide

Storage	Store at -20℃.Store the lyophilized protein at -20℃ to -80 ℃ up to 1 year from the date of receipt. After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week.
Reconstitution	Centrifuge the vial before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles.

* For research use only. Not for therapeutic or diagnostic purposes.