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製品詳細
Synonyms
FcRn, FCGRT & B2M
Source
Human FCGRT&B2M Heterodimer Protein, His Tag (FCN-H52W7) 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
Human FCGRT&B2M Heterodimer Protein, His Tag, produced by co-expression of FCGRT and B2M, has a calculated MW of 32.3 kDa (FCGRT) and 11.7 kDa (B2M). Subunit FCGRT is fused with a polyhistidine tag at the C-terminus and subunit Beta-2 microglobulin (B2M) contains no tag at the C-terminus. The reducing (R) protein migrates as 33 kDa (FCGRT) and 10 kDa (B2M) respectively due to glycosylation.
Endotoxin
Less than 1.0 EU per μg by the LAL method / rFC method.
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 24 months in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
ACRO Quality Management System
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データ表示
SDS-PAGE
Human FCGRT&B2M Heterodimer Protein, His 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-MALS
The purity of Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) is more than 90% and the molecular weight of this protein is around 40-60 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA
Immobilized Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) at 5 μg/mL (100 μL/well) on a Nickel Coated plate can bind Monoclonal Anti-Human CTLA-4 Antibody, Human IgG1 with a linear range of 1-31 ng/mL (Routinely tested).
Protocol
Bioactivity-SPR
Captured Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) on CM5 Chip via Anti-His antibody can bind Herceptin® (Trastuzumab) with an affinity constant of 0.516 μM as determined in a SPR assay (Biacore T200) (QC tested).
Protocol
Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) captured on CM5 Chip via anti-His antibody can bind Human IgG1 Fc, Tag Free (Cat. No. FCC-H5214) with an affinity constant of 0.957 μM as determined in SPR assay (Biacore 8K) (Routinely tested).
Protocol
Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) captured on CM5 Chip via anti-His antibody can bind Human IgG2 Fc, Tag Free (Cat. No. IG2-H5206) with an affinity constant of 33.3 nM as determined in SPR assay (Biacore 8K) (Routinely tested).
Protocol
Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) captured on CM5 Chip via anti-His antibody can bind Human IgG3 Fc, Tag Free (Cat. No. IG3-H5200) with an affinity constant of 0.683 μM as determined in SPR assay (Biacore 8K) (Routinely tested).
Protocol
Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) captured on CM5 Chip via anti-His antibody can bind Human IgG4 Fc, Tag Free (SPR verified) (Cat. No. IG4-H5205) with an affinity constant of 0.715 μM as determined in SPR assay (Biacore 8K) (Routinely tested).
Protocol
Herceptin immobilized on CM4 Chip can bind Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) with an affinity constant of 0.257 μM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
Bioactivity-BLI
Loaded Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) on SA Biosensor via Biotin his antibody, can bind Herceptin with an affinity constant of 0.14 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) on AR2G 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 Serum Albumin, His,Avitag (Cat. No. HSA-H82E3) on SA Biosensor, can bind Human FCGRT&B2M Heterodimer Protein, His Tag (Cat. No. FCN-H52W7) with an affinity constant of 4.09 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
ユーザーレビュー コメントを投稿
1***32019-10-14
いいねWe used this protein to detect the binding ability of the antibody with FcRn. The instrument we used was Octet Red and the sensor was HIS1K. The binding was very good.- 1***22019-10-13 いいねRecently I purchased this product for affinity test of antibody with FcRn using SPR method. We tested the SEC-HPLC first, and got very high purity. Basically it's one single peak, and well met the requirements for SPR affinity detection.
よくある質問
- 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
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最新の進展
医薬品開発の進捗- 英語名：
IgG receptor FcRn large subunit p51
- カテゴリ：
- 市販の医薬品数：
4 詳細
- 治験医薬品数：
5 詳細
- 最新の開発ステージ：
Approved
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