Abbreviation
Recombinant Human CSF2 protein (Active)
Purity
>98% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.1 ng/ml, corresponding to a specific activity of >1.0x107 IU/mg.
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
APARSPSPST QPWEHVNAIQ EARRLLNLSR DTAAEMNETV EVISEMFDLQ EPTCLQTRLE LYKQGLRGSL TKLKGPLTMM ASHYKQHCPP TPETSCATQI ITFESFKENL KDFLLVIPFD CWEPVQE
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
Tag-Free
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 PBS, pH 7.4
Lead Time
5-10 business days
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 is a pleiotropic cytokine central to myeloid cell differentiation, macrophage activation, and dendritic cell maturation, making precise recombinant forms essential for dissecting JAK/STAT5 and MAPK signaling pathways. This tag-free recombinant human CSF2 encompasses the full mature sequence (Ala18–Glu144) and demonstrates exceptional signaling potency, with an ED50 below 0.1 ng/mL in TF-1 proliferation assays corresponding to a specific activity exceeding 1.0 × 10⁷ IU/mg — providing a reliable reference standard for cytokine detection assays and a dependable positive control in ELISA or Western blot workflows. Endotoxin levels held below 1.0 EU/μg effectively minimize LPS-driven artifacts that confound immune cell functional readouts, which supports use in PBMC activation assays, dendritic cell differentiation protocols, and in vivo inflammation or tumor biology models. Purity exceeding 98% by SDS-PAGE, combined with this stringent endotoxin profile, satisfies the quality criteria typical for antibody development campaigns requiring a well-characterized immunogen or coating antigen.