This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 87.2 kDa. The protein migrates as 95-125 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
Supplied as 0.2 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5 with glycerol as protectant.
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Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Biotinylated Human ACE2, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
The purity of Biotinylated Human ACE2, His,Avitag (Cat. No. AC2-H82E6) is more than 85% and the molecular weight of this protein is around 187-229 kDa verified by SEC-MALS.
Immobilized Biotinylated Human ACE2, His,Avitag (Cat. No. AC2-H82E6) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind SARS-CoV-2 S1 protein, Fc Tag (Cat. No. S1N-C5255) with a linear range of 0.1-6 ng/mL (QC tested).
Biotinylated Human ACE2, His,Avitag (Cat. No. AC2-H82E6) captured on Biotin CAP - Series S sensor Chip can bind SARS-CoV-2 S protein (R683A, R685A), His Tag (Cat. No. SPN-C52H4) with an affinity constant of 54.5 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Loaded Biotinylated Human ACE2, His,Avitag (Cat. No. AC2-H82E6) on SA Biosensor, can bind SARS-CoV-2 S protein (R683A, R685A), His Tag (Cat. No. SPN-C52H4) with an affinity constant of 42.8 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Authors: Pratik Adhikary, Sashi Kandel, et al.
Journal: Advanced Therapeutics. 2021
Authors: Dong J, Huang B, Wang B, et al.
Journal: Scientific reports 2021
Authors: Tang J, Ravichandran S, Lee Y, et al.
Journal: Nature communications 2021
Authors: Esparza, Thomas J et al.
Journal: Scientific reports 2020
Application: Binding Assay
Deep mutational scanning of SARS-CoV-2 receptor binding domain reveals constraints on folding and ACE2 binding. BioRxiv preprint. doi: https://doi.org/10.1101/2020.06.17.157982
Authors: Tyler N Starr, Allison J Greaney , Sarah K Hilton, et al.
Journal: BioRxiv 2020
Application: Flow cytometry
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