Abbreviation
Recombinant Human CSF2 protein (Active)
Purity
Greater than 95% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
The ED50 as determined in a cell proliferation assay using TF‑1 human erythroleukemic cells is 6-30 pg/ml.
Alternative Names
Colony stimulating factor 2 (granulocyte-macrophage); Colony Stimulating Factor 2; Colony stimulating factor; Colony-stimulating factor; CSF 2; CSF; CSF2; CSF2_HUMAN; GM-CSF; GMCSF; Granulocyte Macrophage Colony Stimulating Factor; Granulocyte-macrophage colony-stimulating factor; MGC131935; MGC138897; MGI1GM; Molgramostin; Pluripoietin-a; Sargramostim
Species
Homo sapiens (Human)
Expression Region
18-144aa
Target Protein Sequence
APARSPSPSTQPWEHVNAIQEARRLLNLSRDTAAEMNETVEVISEMFDLQEPTCLQTRLELYKQGLRGSLTKLKGPLTMMASHYKQHCPPTPETSCATQIITFESFKENLKDFLLVIPFDCWEPVQE
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Protein Length
Full Length of Mature Protein
Tag Info
C-terminal 6xHis-tagged
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
Lyophilized from a 0.2 μm filtered 20 mM PB, 150 mM NaCl, pH 7.4
Lead Time
Basically, we can dispatch the products out in 5-10 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Datasheet & COA
Please contact us to get it.
Description
GM-CSF drives myeloid cell proliferation, differentiation, and activation through JAK2/STAT5 and MAPK signaling, making it indispensable for immune cell functional studies. This recombinant human CSF2 spans the full mature sequence (aa 18–144) with a C-terminal 6xHis tag and demonstrates potent bioactivity, with an ED50 of 6–30 pg/ml in TF-1 cell proliferation assays—confirming signaling competence suitable for dose-response experiments, dendritic cell differentiation protocols, and JAK/STAT pathway activation studies. Endotoxin levels below 1.0 EU/μg eliminate LPS-driven artifacts that confound cytokine-specific readouts in primary monocyte and macrophage assays, supporting use in sensitive in vivo inflammation models and as a reference standard in GM-CSF detection assays. Mammalian-expressed with greater than 95% purity by SDS-PAGE, this protein provides a suitable basis for antibody validation workflows including ELISA coating and Western blot positive controls.