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Limited Edition Golden Llama is here! Check out how you can get one. 
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This protein carries a polyhistidine tag at the C-terminus
The protein has a calculated MW of 34.4 kDa. The protein migrates as 50-63 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
SARS-CoV-2 Spike NTD Protein, His Tag (BA.4 & BA.5/Omicron) on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
The purity of SARS-CoV-2 Spike NTD Protein, His Tag (BA.4 & BA.5/Omicron) (Cat. No. SPD-C5246) is more than 90% and the molecular weight of this protein is around 40-55 kDa verified by SEC-MALS.
Immobilized SARS-CoV-2 Spike NTD Protein, His Tag (BA.4 & BA.5/Omicron) (Cat. No. SPD-C5246) at 1 μg/mL (100 μL/well) can bind Anti-SARS-CoV-2 Spike NTD Antibody, Chimeric mAb, Human IgG1 (AM121) (Cat. No. SPD-M121) with a linear range of 0.1-2 ng/mL (QC tested).
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