Recombinant Human NRG1-α
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Protein DetailsPurity >97% by SDS-PAGE and analyzed by silver stain. Endotoxin Level <0.01 EU/µg as determined by the LAL method Biological Activity The biological activity of Human NRG1-α was measured in a serum free
cell proliferation assay using MCF7 human breast adenocarcinoma cells. Karey, K.P. et al. (1988) Cancer Research 48:4083. The expected ED<sub>50</sub>= 10 - 50 ng/ml. Protein Accession No. Amino Acid Sequence shlvkcaeke ktfcvnggec fmvkdlsnps rylckcqpgf tgarctenvp mkvqnqekae elyqk N-terminal Sequence Analysis Ser177 State of Matter Lyophilized Predicted Molecular Mass The predicted molecular weight of Recombinant Human NRG1-α is Mr 7 kDa. However, the actual molecular weight as observed by migration on SDS-PAGE is Mr 8 kDa. Predicted Molecular Mass 7 Formulation This recombinant protein was 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 with no calcium, magnesium, or preservatives. Storage and Stability This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution, this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions. Country of Origin USA Shipping Next Day Ambient NCBI Gene Bank References & Citations1. Esper, RM. et al. (2006) Brain Res. Brain Res. Rev. 51:161. Certificate of AnalysisIMPORTANT Use lot specific datasheet for all technical information pertaining to this recombinant protein. |
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