Human Her2 & ErbB3 Protein, Fc Tag&Fc Tag (MALS verified)

The Human Epidermal Growth Factor Receptor 2 (HER2) and HER3 form a potent pro-oncogenic heterocomplex upon binding of growth factor neuregulin-1β (NRG1β) . The HER2/HER3 extracellular dimer dynamics likely have important implications for modulating receptor activity.

Human Her2 & ErbB3 Protein, Fc Tag&Fc Tag, produced by co-expression of HER2 and ErbB3, has a calculated MW of 95.9 kDa (HER2) and 94.9 kDa (ErbB3) . Subunit HER2 is fused with a human IgG1 Fc fragment at the C-terminus and subunit ErbB3 is fused with a human IgG1 Fc fragment at the C-terminus. The protein migrates as 110-130 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Immobilized Human Her2 & ErbB3 Protein, Fc Tag&Fc Tag (Cat. No. HE2-H5254) at 1 μg/mL (100 μL/well) can bind Trastuzumab with a linear range of 0.2-4 ng/mL (QC tested).