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Human FCGRT&B2M Heterodimer Protein, Strep Tag&Tag Free, produced by co-expression of FCGRT and B2M, has a calculated MW of 33.8 kDa (FCGRT) and 11.7 kDa (B2M). Subunit FCGRT is fused with Strep II-tag at the C-terminus and subunit Beta-2 microglobulin (B2M) contains no tag. The reducing (R) protein migrates as 40-43 kDa (FCGRT) and 12 kDa (B2M) respectively due to glycosylation.
>90% as determined by SDS-PAGE.
>95% 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:
Human FCGRT&B2M Heterodimer Protein, Strep Tag&Tag Free 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 Human FCGRT&B2M Heterodimer Protein, Strep Tag&Tag Free (Cat. No. FCM-H5283) is more than 95% and the molecular weight of this protein is around 45-60 kDa verified by SEC-MALS.
Human IgG1 Fc (C103S, M135Y, S137T, T139E, H316K, N317F), His Tag (Cat. No. IG1-H52H8) immobilized on CM4 Chip can bind Human FCGRT&B2M Heterodimer Protein, Strep Tag&Tag Free (Cat. No. FCM-H5283) with an affinity constant of 23.8 nM as determined in a SPR assay (Biacore 8K) (QC tested).
Herceptin immobilized on CM4 Chip can bind Human FCGRT&B2M Heterodimer Protein, Strep Tag&Tag Free (Cat. No. FCM-H5283) with an affinity constant of 2.67 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
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