|Bio_Activity||1. Measured by its binding ability in a functional ELISA. Immobilized human ACE2 protein (mFc tag)(Cat: PKSH031870) at 2 μg/mL (100 μL/well) can bind SARS-CoV-2 (2019-nCoV) Spike RBD(N501Y)-His(PKSV030352), the EC50 of PKSV030352 is 3-20 ng/mL. 2. Loaded ACE2 Protein, Human, Recombinant (mFc Tag) (PKSH031870) on AMC Biosensor, can bind SARS-CoV-2 (2019-nCoV) Spike RBD(N501Y)-His Recombinant Protein(PKSV030352) with an affinity constant of 0.827 nM as determined by Octet RED96e system.|
|Purity||> 95 % as determined by SDS-PAGE.|
|Endotoxin level||< 1.0 EU per μg protein as determined by the LAL method.|
|Storage||Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.|
|Shipping||This product is provided as lyophilized powder which is shipped with ice packs.|
|Formulation||Lyophilized from sterile PBS, pH 7.4.|
|Reconstitution||Please refer to the instraction in the hard copy of COA.|
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