Recombinant Human G-CSF (CSF3)

CAT: 0171-Z100249Size: 1 mgDry Ice: NoHazardous: No
CAT#:0171-Z100249Size:1 mg
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Description
G-CSF is secreted by monocytes, macrophages, and neutrophils after cell activation. It is produced also by stromal cells, fibroblasts, endothelial cells, epithelial carcinomas, acute myeloid leukemia cells, and various tumor cell lines. The synthesis of G-CSF can be induced by bacterial endotoxins, TNF, IL-1 and GM-CSF. Comparison of the primary sequence of G-CSF with those of the two other colony stimulating factors, GM-CSF and M-CSF, shows that the three factors are not related to each other. Murine and human G-CSF show a sequence homology of approximately 70% at the DNA level and 72% at the protein level. The G-CSF receptor, CD114, is expressed on all cells of the neutrophils and granulocytes lineage. It is expressed also in placenta cells, endothelial cells and various carcinoma cell lines. Human G-CSF is active in murine cells and vice versa. G-CSF stimulates the proliferation and differentiation of hematopoietic progenitor cells committed to the neutrophils and granulocytes lineage in a dose-dependent manner. G-CSF synergises with some other cytokines, including GM-CSF and IL-4. GM-CSF and G-CSF are required, for example, to develop neutrophilic colonies in vitro. The concerted action of G-CSF and Epo is required to support the growth of mixed colonies of the early erythroid progenitors. A combination of IL-4 with G-CSF has been shown to lead to synergistic suppression of the growth of some human leukemic cell lines.
CAS Number
9000-83-3
Gene Name
CSF3
Gene Aliases
GCSF, CSF-3, MGI-1G, Pluripoietin, Human Granulocyte Colony Stimulating Factor (CSF3)
Gene ID
1440
Accession Number
P09919
Organism
Human
Source
E. coli
Concentration
<1.0 EU/μg of recombinant protein as determined by the LAL method.
Purity
>95% as determined by SDS-PAGE
Solubility
A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
Function
The ED(50) was determined by the dose-dependent proliferation of murine M-NFS-60 cells is ≤ 0.1 ng/mL, corresponding to a specific activity of ≥ 1.0 x 10^8 units/mg.
Molecular Weight
19
Shipping Conditions
Ambient Temperature
Storage Conditions
The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.
Appearance
Lyophilized Powder
Formulation
Lyophilized from a 0.2 μm filtered solution in Tris-HCl and NaCl (pH 7.5).

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