Recombinant Mouse IL-9
Murine interleukin-9 (IL-9) was originally identified as T cell-derived T cell growth factor III/P40 that could support the long term growth of certain murine T helper clones in the absence of antigen or antigen-presenting cells. Human IL-9 was independently cloned as a novel growth factor that is mitogenic for the human megakaryoblastic leukemic cell line, M07e. Murine IL-9 shares 56 % amino acid sequence identity with human IL-9. Although murine IL-9 is active on human cells, human IL-9 is not active on murine cells.
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Gene ID |
16198 |
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Accession # |
P15247 |
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Alternate Names |
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Source |
Escherichia coli. |
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M.Wt |
Approximately 14.2 kDa, a single non-glycosylated polypeptide chain containing 126 amino acids. |
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AA Sequence |
QRCSTTWGIR DTNYLIENLK DDPPSKCSCS GNVTSCLCLS VPTDDCTTPC YREGLLQLTN ATQKSRLLPV FHRVKRIVEV LKNITCPSFS CEKPCNQTMA GNTLSFLKSL LGTFQKTEMQ RQKSRP |
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Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Stability & Storage |
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. - 12 months from date of receipt, -20 to -70 °C as supplied. - 1 month, 2 to 8 °C under sterile conditions after reconstitution. - 3 months, -20 to -70 °C under sterile conditions after reconstitution. |
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Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4. |
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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 °C. Further dilutions should be made in appropriate buffered solutions. |
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Biological Activity |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine TS1 cells is less than 0.02 ng/ml, corresponding to a specific activity of > 5.0 × 107 IU/mg. |
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Shipping Condition |
Gel pack. |
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Handling |
Centrifuge the vial prior to opening. |
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Usage |
For Research Use Only! Not to be used in humans. |
Quality Control & DataSheet
- View current batch:
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Purity > 97 % by SDS-PAGE and HPLC analyses.
- Datasheet
Endotoxin: Less than 0.1 EU/μg of rMuIL-9 as determined by LAL method.