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Product Details
Synonyms
FcRn, FCGRT & B2M
Source
Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (FCM-H8286) 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)). It is the biotinylated form of Human FCGRT&B2M Heterodimer Protein, His Tag&Strep II Tag (Cat. No. FCM-H5286).
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, His Tag&Strep II Tag, primary amine labeling, produced by co-expression of FCGRT and B2M, has a calculated MW of 31.2 kDa (FCGRT) and 13.1 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus and subunit Beta-2 microglobulin (B2M) is fused with Strep II-tag at the C-terminus. The reducing (R) protein migrates as 33 kDa (FCGRT) and 13 kDa (B2M) respectively due to glycosylation.
Labeling
The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.
Protein Ratio
Passed as determined by the HABA assay / binding ELISA.
Purity
>95% as determined by SDS-PAGE.
>95% 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.
Shipping and Storage
This product is shipped at ambient temperature.
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.
ACRO Quality Management System
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Data Display
SDS-PAGE
Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling 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, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) was greater than 95% as determined by SEC-HPLC.
Bioactivity-SPR
Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) captured on Biotin CAP - Series S sensor Chip can bind Herceptin® with an affinity constant of 0.57 μM as determined in a SPR assay (Biacore 8K) (QC tested).
Protocol
Bioactivity-BLI
Loaded Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) on SA Biosensor, can bind Herceptin with an affinity constant of 0.36 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Biotinylated Human FCGRT&B2M, His Tag&Strep II Tag, primary amine labeling (Cat. No. FCM-H8286) on SA Biosensor, can bind Human Serum Albumin, His Tag (Cat. No. HSA-H5220) with an affinity constant of 0.263 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
User Reviews Publish Comment
FAQ
- product
Can lyophilized proteins remain stable during room-temperature shipping or temporary room-temperature exposure?
In general, lyophilized proteins remain stable during room-temperature shipping or temporary exposure to room-temperature conditions.
Many ACROBiosystems recombinant proteins are supplied in lyophilized (freeze-dried) form. The lyophilization process effectively removes moisture from the product, helping reduce degradation-related reactions and improve protein stability during transportation and storage.
To evaluate the stability of lyophilized proteins under normal temperature conditions, ACROBiosystems conducted a stability study on 11 representative lyophilized protein products at 37°C. The study demonstrated that these proteins maintained good quality stability after storage at 37°C for approximately 20 days. Based on these validation results, temporary room-temperature exposure during shipping or handling is generally not expected to have a significant impact on product quality or downstream application performance.
To ensure optimal long-term stability, products should be stored according to the storage conditions specified in the product Certificate of Analysis (COA) upon receipt.
Supporting Document
Background Introduction
Frontier Progress
Drug Development Progress- English Name：
IgG receptor FcRn large subunit p51
- Category：
- Listed Drugs Count：
4 Details
- Clinical Drugs Count：
5 Details
- Highest R&D Stage：
Approved
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