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Product Details
Synonym
FcRn, FCGRT & B2M
Source
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (FCM-H82W4) is expressed from human 293 cells (HEK293). It contains AA Ala 24 - Ser 297 (FCGRT) & Ile 21 - Met 119 (B2M) (Accession # P55899-1 (FCGRT) & P61769-1 (B2M)).
Predicted N-terminus: Ala 24 (FCGRT) & Ile 21 (B2M)
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag, produced by co-expression of FCGRT and B2M, has a calculated MW of 34.1 kDa (FCGRT) and 13.1 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) is fused with Strep II-tag at the C-terminus. The reducing (R) protein migrates as 38 kDa (FCGRT) and 14 kDa (B2M) respectively due to glycosylation.
Labeling
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Protein Ratio
Passed as determined by the HABA assay / binding ELISA.
Purity
>95% as determined by SDS-PAGE.
>90% as determined by SEC-HPLC.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
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:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
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Performance Data
SDS-PAGE
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-HPLC
The purity of Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) was greater than 90% as determined by SEC-HPLC.
Bioactivity-ELISA
Immobilized Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) at 5 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Monoclonal Anti-Human CTLA-4 Antibody, Human IgG1 with a linear range of 1-39 ng/mL (Routinely tested).
Protocol
Bioactivity-SPR
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) captured on Biotin CAP- Series S Sensor Chip can bind Herceptin with an affinity constant of 0.369 μM as determined in a SPR assay (Biacore T200) (QC tested).
Protocol
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) captured on Biotin CAP - Series S sensor Chip can bind Human IgG1 Fc, Tag Free (Cat. No. FCC-H5214) with an affinity constant of 0.728 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) captured on Biotin CAP - Series S sensor Chip can bind Human IgG2 Fc, Tag Free (Cat. No. IG2-H5206) with an affinity constant of 0.113 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) captured on Biotin CAP - Series S sensor Chip can bind Human IgG3 Fc, Tag Free (Cat. No. IG3-H5200) with an affinity constant of 3.32 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) captured on Biotin CAP - Series S sensor Chip can bind Human IgG4 Fc, Tag Free (Cat. No. IG4-H5205) with an affinity constant of 1.06 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Bioactivity-BLI
Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) on SA Biosensor, can bind Herceptin with an affinity constant of 0.22 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Biotinylated Human FCGRT&B2M Heterodimer Protein, Avitag,His Tag&Strep II Tag (Cat. No. FCM-H82W4) on SA Biosensor, can bind Human Serum Albumin, His Tag (Cat. No. HSA-H5220) with an affinity constant of 0.772 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
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Background
Recent Advances
Drug Development Progress- English Name：
IgG receptor FcRn large subunit p51
- Category：
- Approved Drugs：
4 Details
- Drugs in Clinical Trials：
5 Details
- Highest Development Stage：
Approved
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