Description
Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF) is a powerful growth and differentiation factor which acts on hematopoietic progenitor cells and also activates differentiated granulocytes and macrophages. The 22 kDa glycosylated GMCSF, similar to IL3 and IL5, is a cytokine with a core of four bundled alpha -helices. Mature human GMCSF shares 63%70% amino acid sequence identity with canine, feline, porcine, and rat GMCSF and 54% with mouse GMCSF. GM-CSF has been and is still widely used as an adjuvant in clinical trials of vaccination with autologous tumor cells, peptides and/or dendritic cells in a variety of human neoplasms. The effects of GM-CSF on HIV-1 replication in primary monocytes and macrophages, and in related cell lines, have demonstrated augmentation of HIV-1 expression in vitro.
Product Properties
|
Synonyms |
Granulocyte/Macrophage Colony-Stimulating Factor, GM-CSF, CSF-2, MGI-1GM, Pluripoietin-α |
|
Accession |
P48750 |
|
GeneID |
116630 |
|
Source |
E.coli-derived rat GM-CSF protein, Ala18-Lys144. |
|
Molecular Weight |
Approximately 14.5 kDa. |
|
AA Sequence |
APTRSPNPVT RPWKHVDAIK EALSLLNDMR ALENEKNEDV DIISNEFSIQ RPTCVQTRLK LYKQGLRGNL TKLNGALTMI ASHYQTNCPP TPETDCEIEV TTFEDFIKNL KGFLFDIPFD CWKPVQK |
|
Tag |
None |
|
Physical Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
|
Purity |
> 98% by SDS-PAGE and HPLC analyses. |
|
Biological Activity |
The ED50 as determined by a cell proliferation assay using murine FDC-P1 is less than 0.01 ng/mL, corresponding to a specific activity of > 1.0 × 108 IU/mg. Fully biologically active when compared to standard. |
|
Endotoxin |
< 1.0 EU per 1μg of the protein by the LAL method. |
|
Formulation |
Lyophilized from a 0.2 μm filtered concentrated 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℃. Further dilutions should be made in appropriate buffered solutions. |
Shipping and Storage
The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.
Cautions
1.Avoid repeated freeze-thaw cycles.
2.For your safety and health, please wear lab coats and disposable gloves for operation.
3.For research use only!