This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 85.5 kDa. The protein migrates as 100-115 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
>95% as determined by SDS-PAGE.
Delivered as bulk protein in a 0.2 μm filtered solution of 50 mM Tris, 150 mM NaCl, Arginine, pH7.5 with glycerol as protectant.
Contact us for customized product form or formulation.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
The product MUST be stored at -70°C or lower upon receipt;
-70°C for 3 months under sterile conditions.
Human ACE2, His Tag 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 Human ACE2, His Tag (Cat. No. AC2-H52H8) was more than 85% and the molecular weight of this protein is around 195-220 kDa verified by SEC-MALS.
SARS-CoV-2 S1 protein, Fc Tag (Cat. No. S1N-C5255) captured on CM5 Chip via anti-human IgG Fc antibodies can bind Human ACE2, His Tag (Cat. No. AC2-H52H8) with an affinity constant of 3.79 nM as determined in SPR assay (Biacore T200) (Routinely tested).
Loaded SARS-CoV-2 S protein RBD, Fc Tag (Cat. No. SPD-C5255) on Protein A Biosensor, can bind Human ACE2, His Tag (Cat. No. AC2-H52H8) with an affinity constant of 2.16 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded SARS-CoV-2 S1 protein, Mouse IgG2a Fc Tag (Cat. No. S1N-C5257) on AMC Biosensor, can bind Human ACE2, His Tag (Cat. No. AC2-H52H8) with an affinity constant of 2.53 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded SARS-CoV-2 S protein (R683A, R685A), His Tag (Cat. No. SPN-C52H4) on AR2G Biosensor, can bind Human ACE2, His Tag (Cat. No. AC2-H52H8) with an affinity constant of 11.4 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Authors: Esparza, Thomas J et al.
Journal: Scientific reports 2020
Application: Competitive Immunopanning
Antibody Signature Induced by SARS-CoV-2 Spike Protein Immunogens in Rabbits
Authors: Ravichandran S, Coyle EM, Klenow L, et al.
Journal: Sci Transl Med 2020
Application: SPR
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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