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Recombinant Human GM-CSF/CSF2 Protein (E.coli)(Active)
SKU: PKSH033662-100
Recombinant Human GM-CSF/CSF2 Protein (E.coli)(Active)
| SKU # | PKSH033662 |
| Expression Host | E.coli |
Description
| Synonyms | CSF, CSF2, Colony-Stimulating Factor, GM-CSF, GMCSF, Granulocyte-Macrophage Colony-Stimulating Factor, Molgramostin, Sargramostim |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Ala18-Glu144 |
| Accession | P04141 |
| Calculated Molecular Weight | 15.4 kDa |
| Observed Molecular Weight | 15 kDa |
| Tag | N-His |
| Bio-activity | Measure by its ability to induce TF-1 cells proliferation. The ED50 for this effect is <80 pg/mL. The specific activity of recombinant human GM-CSF is approximately >1 x 107 IU/mg. |
Properties
| Purity | > 98 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 0.1 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation | Lyophilized from sterile PBS,pH 8.0. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
Background
Granulocyte-Macrophage Colony Stimulating Factor (GM-CSF) was initially characterized as a growth factor that can support the in vitro colony formation of granulocyte-macrophage progenitors. It is produced by a number of different cell types (including activated T cells; B cells; macrophages; mast cells; endothelial cells and fibroblasts) in response to cytokine of immune and inflammatory stimuli. Besides granulocyte-macrophage progenitors; GM-CSF is also a growth factor for erythroid; megakaryocyte and eosinophil progenitors. On mature hematopoietic; monocytes/ macrophages and eosinophils. GM-CSF has a functional role on non-hematopoitic cells. It can induce human endothelial cells to migrate and proliferate. Additionally; GM-CSF can also stimulate the proliferation of a number of tumor cell lines; including osteogenic sarcoma; carcinoma and adenocarcinoma cell lines.