Product Details
Synonyms
FCER1A, FCE1A, FcERI
Source
Biotinylated Human Fc epsilon RI alpha Protein, His,Avitag (FCA-H82E3) is expressed from human 293 cells (HEK293). It contains AA Val 26 - Gln 205 (Accession # P12319-1).
Predicted N-terminus: Val 26
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 24.6 kDa. The protein migrates as 50-55 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) 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.
>95% 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.
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 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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Performance Data
SDS-PAGE

Biotinylated Human Fc epsilon RI alpha 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% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS

The purity of Biotinylated Human Fc epsilon RI alpha Protein, His,Avitag (Cat. No. FCA-H82E3) is more than 95% and the molecular weight of this protein is around 40-50 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA

Immobilized Human IgE Fc, His Tag (Cat. No. IGE-H52H9) at 1 μg/mL (100 μL/well) can bind Biotinylated Human Fc epsilon RI alpha Protein, His,Avitag (Cat. No. FCA-H82E3) with a linear range of 0.02-0.6 ng/mL (QC tested).
Protocol
Bioactivity-BLI

Loaded Biotinylated Human Fc epsilon RI alpha Protein, His,Avitag (Cat. No. FCA-H82E3) on SA Biosensor, can bind Immunoglobulin E, Human Plasma with an affinity constant of 1.92 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Customer Reviews Writing Reviews

Background
Recent Advances
- English Name:
IgE Fc receptor, alpha-subunit
- Category:
- Approved Drugs:
1 Details
- Drugs in Clinical Trials:
1 Details
- Highest Development Stage:
Approved
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