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Product Details
Synonyms
FcRn, FCGRT & B2M
Source
Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (FCM-M82W5) is expressed from human 293 cells (HEK293). It contains AA Ser 22 - Ser 297 (FCGRT) & Ile 21 - Met 119 (B2M) (Accession # Q61559-1 (FCGRT) & P01887-1 (B2M)).
Predicted N-terminus: Ser 22 (FCGRT) & Ile 21 (B2M)
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag, produced by co-expression of FCGRT and B2M, has a calculated MW of 34.9 kDa (FCGRT) and 11.6 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 at the C-terminus. The reducing (R) protein migrates as 45-55 kDa (FCGRT) and 13 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 SABA assay / HABA assay / binding ELISA.
Purity
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
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 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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Data Display
SDS-PAGE
Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.
SEC-MALS
The purity of Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) is more than 90% and the molecular weight of this protein is around 55-65 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA
Immobilized Ipilimumab at 5 μg/mL (100 μL/well) can bind Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) with a linear range of 5-78 ng/mL (QC tested).
Protocol
Bioactivity-SPR
Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) captured on Biotin CAP-Series S Sensor Chip can bind Herceptin with an affinity constant of 3.42 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) captured on Biotin CAP-Series S Sensor Chip can bind Monoclonal Anti-Human CD3 Antibody, Mouse IgG2a (Clone: OKT3), premium grade (Cat. No. CDE-M120a) with an affinity constant of 4.57 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Bioactivity-BLI
Loaded Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) on SA Biosensor, can bind Herceptin with an affinity constant of 2.2 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Biotinylated Mouse FCGRT&B2M Heterodimer Protein, His,Avitag (Cat. No. FCM-M82W5) on SA Biosensor, can bind Mouse Serum Albumin, His Tag (Cat. No. MSA-M52H8) with an affinity constant of 0.495 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
User Reviews Publish Comment
C***n2023-05-03
LikesI used Acro's FcRn for development of novel assays. The proteins within just a few days of placing the order. The proteins were also high quality, stable, and did not result in any background in any of the assays that were developed, even after using them for months. These produced great data and we have continued to repurchase them since. I would highly recommend this product.
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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