| Description : |
Interleukin 11 is a pleiotropic cytokine that was originally detected in the conditioned medium of an IL-1α-stimulated primate bone marrow stromal cell line (PU-34) as a mitogen for the IL-6-responsive murine plasmacytoma cell line T11. IL-11 contains no cysteine residues or potential glycosylation sites. IL-11 has multiple effects on both hematopoietic and nonhematopoietic cells. Many of the biological effects described for IL-11 overlap those for IL-6. In vitro, IL-11 can synergize with IL-3, IL-4 and SCF to shorten the G0 period of early hematopoietic progenitors. IL-11 also enhances the IL-3-dependent megakaryocyte colony formation. IL-11 has been found to stimulate the T cell dependent development of specific immunoglobulin-secreting B cell. |
| Source : |
E. coli |
| Species : |
Mouse |
| Form : |
Sterile Filtered White lyophilized (freeze-dried) powder. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by the dose-dependant stimulation of the proliferation of murine T11 was found to be less than 2.0 ng/mL, corresponding to a specific activity of ＞5 × 10^5 IU/mg. |
| Molecular Mass : |
Approximately 19.1 kDa, a single non-glycosylated polypeptide chain containing 179 amino acids. |
| Protein Length : |
179 |
| AA Sequence : |
MPGPPAGSPRVSSDPRADLDSAVLL TRSLLADTRQLAAQMRDKFPADGDH SLDSLPTLAMSAGTLGSLQLPGVLT RLRVDLMSYLRHVQWLRRAGGPSLK TLEPELGALQARLERLLRRLQLLMS RLALPQAAPDQPVIPLGPPASAWGS IRAAHAILGGLHLTLDWAVRGLLLL KTRL |
| Endotoxin : |
Less than 1 EU/mg of rmIL-11 as determined by LAL method. |
| Purity : |
>97% by SDS-PAGE and HPLC analyses. |
| Storage : |
This lyophilized preparation is stable at 2-8 centigrade, but should be kept at -20 centigrade for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 centigrade. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 to -70 centigrade. Avoid repeated freeze/thaw cycles. |
| Storage Buffer : |
Lyophilized from a 0.2mm filtered solution in PBS, pH 7.4. |
| 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. |
