Recombinant human GM-CSF protein
Human GM-CSF is a 14. 6 kDa globular protein consisting of 128 amino acid containing two dislufied bonds. GM-CSF is a hematopoietic growth factor that stimulates the development of neutrophils and macrophages and promotes the proliferation and development of early erythroid megakaryocytic and eosinophilic progenitor cells. It is produced in by endothelial cells, monocytes, fibroblasts and T-lymphocytes. GM-CSF inhibits neutrophil migration and enhances the functional activity of the mature end-cells. Recombinant human GM-CSF was expressed in E. coli and purified by conventional chromatography, after refolding of the isolated inclusion bodies in a renaturation buffer.
Product Specifications
Specifications
Human GM-CSF in a cell proliferation assay using TF-1 human erythroleukemic cell. The ED50 range ≤ 50pg/ml.
Product Name Alternative
Expression System
E.coli
Antigen Species
Human
Tag
Non-Tagged
Applications
SDS-PAGE, Bioactivity
Concentration
1 mg/mL (determined by Bradford assay)
Endotoxin
< 1 EU per 1ug of protein (determined by LAL method)
Purity
> 95% by SDS-PAGE
Bioactivity
Measured in a cell proliferation assay using TF-1 human erythroleukemic cells. The ED50 range ≤ 50pg/ml.
Molecular Weight
14.6 kDa (128aa) confirmed by MALDI-TOF
Additionnal Information
References & Citations
Trapnell BC, et al. (2002) Annu Rev Physiol. 64, 775-80; ; Wong GG, et al (1985) Science, 228, 810-815;
Other References
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. Phosphate-Buffered Saline (pH 7.4)
Scientific Category
Hormones & Cytokines
NCBI Accession Number
NP_000749
Uniprot Accession Number
P04141
Species
Human
AA Sequence
MAPARSPSPS TQPWEHVNAI QEARRLLNLS RDTAAEMNET VEVISEMFDL QEPTCLQTRL ELYKQGLRGS LTKLKGPLTM MASHYKQHCP PTPETSCATQ IITFESFKEN LKDFLLVIPF DCWEPVQE
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