| Source: |
Escherichia coli. |
| Molecular Weight: |
Approximately 19.1 kDa, a single non-glycosylated polypeptide chain containing 179 amino acids. |
| AA Sequence: |
MPGPPPGPPR VSPDPRAELD STVLLTRSLL ADTRQLAAQL RDKFPADGDH NLDSLPTLAM SAGALGALQL PGVLTRLRAD LLSYLRHVQW LRRAGGSSLK TLEPELGTLQ ARLDRLLRRL QLLMSRLALP QPPPDPPAPP LAPPSSAWGG IRAAHAILGG LHLTLDWAVR GLLLLKTRL |
| Purity: |
> 95% by SDS-PAGE and HPLC analyses. |
| Biological Activity: |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine B9-11 cells is less than 1 ng/mL, corresponding to a specific activity of > 1.0 × 106 IU/mg. |
| Physical Appearance: |
Sterile filtered white lyophilized (freeze-dried) powder. |
| Formulation: |
Lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH7.4. |
| Endotoxin: |
Less than 1 EU/µg of rHuIL-11 as determined by LAL method. |
| Reconstitution: |
Centrifuge the vial briefly before opening to ensure that the contents settle at the bottom. Reconstitute the vial with sterile distilled water or an aqueous buffer containing 0.1% BSA to achieve a concentration of 0.1-1.0 mg/mL. Divide the resulting stock solution into working aliquots and store them at or below -20°C. For further dilutions, use appropriate buffered solutions. |
| 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. |
| Synonyms: |
AGIF |
| Background: |
Encoded by the IL11 gene, Interleukin-11 (IL-11) belongs to the IL-6 superfamily and utilizes the gp130 co-receptor. Initially discovered in bone marrow stromal cells, IL-11 signals through a complex involving two IL-11 and two IL-11Rα molecules, along with the gp130 signaling subunit. Its primary functions include stimulating hematopoietic stem cell and megakaryocyte progenitor cell proliferation, as well as promoting megakaryocyte maturation, which leads to increased platelet production. |
