Purity: >95 % as determined by densitometry.
Endotoxin: <1.0 EU per μg protein as determined by the LAL method.
Activity: Measured by its binding ability in a functional ELISA. Immobilized human ACE2 (19-740) protein (Fc tag) at 2ug/ml (100ul/well) can bind to 2019-nCoV spike protein RBD (His tag).
Expressed Host: CHO Cells
Molecule Weight: 150 kDa
Formulation: Recombinant protein stored in 50mM Tris-HCl, pH 7.5, 90mM glycine.
Gene Accession code: AF291820
Storage: Store product at –70°C. For optimal storage, aliquot target into smaller quantities after centrifugation and store at recommended temperature. For most favourable performance, avoid repeated handling and multiple freeze/thaw cycles.
Regulatory/ Restrictions: For research use only.