Recombinant Human IGF-I/IGF-1 Protein Flag Tag

Description :
Synonyms IGF-I, IGF1A, somatomedin C, MGF Uniprot No. P05019-1 Source E.coli-derived human IGF-1 protein, Gly49-Ala118, with C-terminal Flag tag. Molecular Weight Approximately 8.6 kDa. Purity > 90% as determined by SDS-PAGE. Biological Activity The ED50as determined by a cell proliferation assay using serum free human MCF-7 cells is less than 1 ng/mL, corresponding to a specific activity of > 1.0 106IU/mg. Fully biologically active when compared to standard. Endotoxin Formulation Lyophilized from a 0.2 m filtered concentrated solution in PBS. Reconstitution Centrifuge tubes before opening. Dissolve lyophilized protein with PBS. Recommend to aliquot the protein into smaller quantities when first usedand avoid repeated freeze-thaw cycles.