Biotinylated Feline FCGRT&B2M Heterodimer Protein, His,Avitag, produced by co-expression of FCGRT and B2M, has a calculated MW of 34.0 kDa (FCGRT) and 11.5 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™) and subunit Beta-2 microglobulin (B2M) contains no tag. The reducing (R) protein migrates as 36-40 kDa (FCGRT) and 18-20 kDa (B2M) respectively 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. Normally trehalose is added as protectant before lyophilization.
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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:
Biotinylated Feline FCGRT&B2M Heterodimer Protein, 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 90%.
The purity of Biotinylated Feline FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCN-F82W3) was more than 90% and the molecular weight of this protein is around 50-60 kDa verified by SEC-MALS.
Biotinylated Feline FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCN-F82W3) captured on Biotin CAP-Series S Sensor Chip can bind Herceptin® with an affinity constant of 1.19 nM as determined in a SPR assay (Biacore T200) (QC tested).
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