| Official Full Name |
Recombinant Human Interleukin-7 (rHuIL-7) |
| Squence |
 |
| Amino Acid Sequence |
DCDIEGKDGK QYESVLMVSI DQLLDSMKEI GSNCLNNEFN FFKRHICDAN KEGMFLFRAA RKLRQFLKMN STGDFDLHLL KVSEGTTILL NCTGQVKGRK PAALGEAQPT KSLEENKSLK EQKKLNDLCF LKRLLQEIKT CWNKILMGTK EH |
| Synonyms |
LP-1, pre-B cell factor |
| Accession Number |
P13232 |
| GeneID |
3574 |
| Summary |
Interleukin-7 (IL-7) is encoded by the IL7 gene and secreted by stromal cells in the red marrow and thymus. It binds to the IL-7 receptor, a heterodimer consisting of IL-7 receptor alpha and IL-2 receptor gamma chain. IL-7 stimulates the differentiation of hematopoietic stem cells into lymphoid progenitor cells and also stimulates proliferation of B cells, T cells and NK cells. Murine IL-7 has approximately 65 % amino acid sequence identity with human IL-7 and both proteins exhibit cross-speciesactivity. IL-7 as an immunotherapy agent has been examinedin many human clinical trials for various malignancies and during HIV infection. |
| Source |
Escherichia coli. |
| Molecular Weight |
Approximately 17.4 kDa, a single non-glycosylated polypeptide chain containing 152 amino acids. |
| Biological Activity |
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using PHA-activated human peripheral blood lymphocytes (PBL) is 0.1-0.5 ng/mL. The specific activity of Recombinant Human IL-7 is approximately 2.0 × 108 units/mg, which is calibrated against human IL-7 WHO Standard (NIBSC code: 90/530). |
| Appearance |
Sterile filtered white lyophilized (freeze-dried) powder. |
| Formulation |
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4. |
| Endotoxin |
Less than 1 EU/ug of rHuIL-7 as determined by LAL method. |
| 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. |
| Stability and 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. |
| References |
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| SDS-PAGE |
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| Safety Data Sheet (SDS) Download |
Click to download |
| Technical Data Sheet (TDS) Download |
Click to download |
