Active Recombinant Human CSF1 Protein, His-tagged

Specification :
| Source : Yeast | Species : Human | Tag : His | Predicted N Terminal : Glu 33 | Form : Lyophilized from sterile PBS, pH 7.4, 5%~8% trehalose and mannitol. | Bio-activity : Measured in a cell proliferation assay using M?NFS?60 mouse myelogenous leukemia lymphoblast cells. The ED50 for this effect is typically 1-4 ng/mL. | Molecular Mass : The recombinant human CSF1 consists 168 amino acids and predicts a molecular mass of 19.8 kDa. | Endotoxin : | Purity : >(45.8+27.8+25.7) % as determined by SDS-PAGE. | Stability : Samples are stable for up to twelve months from date of receipt at -70ºC. | Storage : Store it under sterile conditions at -20ºC~-70ºC. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles. | Reconstitution : It is recommended that sterile water be added to the vial to prepare a stock solution of 0.25 ug/ul. Centrifuge the vial at 4℃ before opening to recover the entire contents.