Recombinant Protein;50UG;Human Her2, Strep Tag (HE2-H5287) is expressed from human 293 cells (HEK293). It contains AA Thr 23 - Thr 652 (Accession # P04626-1).;This protein carries a twin strep tag at the C-terminus. The protein has a calculated MW of 72.4 kDa. The protein migrates as 90-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.;Immobilized Human Her2, Strep Tag (Cat. No. HE2-H5287) at 0.05 g/mL (100 L/well) can bind Herceptin with a linear range of 0.4-3 ng/mL (QC tested).