Cat#:RP-3315H;Product Name:Recombinant Human G CSF Protein, PEG;Synonym:CSF-3, MGI-1G, GM-CSF beta, Pluripoietin, Filgrastim, Lenograstim, G-CSF, MGC45931, GCSF.;Description:Granulocyte Colony Stimulating Factor Protein produced in E.coli is a single, non-glycosylated, polypeptide chain containing 175 amino acids and having a molecular mass of 18.8kDa. The Pegylated?G-CSF is produced by attaching a 20kDa methoxypolyethylene glycol propionaldehyde (mPEG-ALD) to the N-terminal amino acid of G-CSF?giving a total molecular mass of 38.8kDa. G-CSF is purified by proprietary chromatographic techniques.;Source:E.coli;Purity:Greater than 95.0% as determined by SEC-HPLC.;Bioactivity:The ED50, calculated by the dose-dependent proliferation of murine NFS-60 indicator cells is less than 0.1 ng/ml, corresponding to a Specific Activity of 10,000,000IU/mg.;Formulation:G-CSF is supplied in solution (0.69mg/ml) containing 10mM Acetate Buffer (pH 4.0), and 0.004% Polysorbate 80.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Storage:G-CSF PEG should be stored refrigerated at 2° to 8°C. Vials should be kept in theirpackaging to protect from light until the time of use. Shaking and freezing should be avoided.;