GRADE & PURITYAnimal Free?Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material.Carrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Bioactive?Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure.ActiBioPure™?ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required.Azide Free?Azide-free — without sodium azide preservative. Use in conjugations, cell work, or assays where azide is toxic or inhibitory.His Tag?His tag grade — recombinant protein bearing a His tag for affinity purification/detection. Use to purify, immobilize, or detect the tagged protein.≥95%(SDS-PAGE)
Expression System
HEK293
Accession #
P12319
Protein Tag
C-His
Expression system
HEK293
Endotoxin Concentration
<0.1 EU/μg
Bioactivity
Immobilized FITC anti-human FcεRIα Antibody at 1μg/mL (25 μL/well) can bind Human Fc epsilon RI alpha with a linear range of 0.46-3.15 ng/mL.
Animal Free,Carrier Free,Bioactive,ActiBioPure™,Azide Free,His-Tag,≥95%(SDS-PAGE) ActiBioPure™,Animal Free,Azide Free,Bioactive,Carrier Free,His Tag for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
Purity ≥95% (SDS-PAGE) Endotoxin level ＜0.1 EU/μg Function Binds to the Fc region of immunoglobulins epsilon. High affinity receptor. Responsible for initiating the allergic response. Binding of allergen to receptor-bound IgE leads to cell activation and the release of mediators (such as histamine) responsible for the manifestations of allergy. The same receptor also induces the secretion of important lymphokines.
Specifications
Product Name
Recombinant Human Fc epsilon RI alpha Protein, ≥95% (SDS-PAGE)
Synonyms
Fc-epsilon RI-alpha | FcERI | IgE Fc receptor subunit alpha | Fc epsilon RI alpha | Fc epsilon RI alpha chain | Fc epsilon RI alpha-chain | Fc fragment of IgE high affinity I receptor for alpha polypeptide | Fc fragment of IgE, high affinity I, receptor f
Grade
ActiBioPure™, Animal Free, Azide Free, Bioactive, Carrier Free, His Tag
38 - 50 kDa, under reducing conditions; 38 - 50 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Shape
Lyophilized
Reconstitution
Reconstitute in sterile water to a concentration of 0.1-0.5 mg/ml.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20~-80℃ for more than 1 year. Upon receipt, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images
Recombinant Human Fc epsilon RI alpha Protein (rp145872) - SDS-PAGE 3 μg/lane of Recombinant Human Fc epsilon RI alpha Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the band at 38 - 50 kDa.
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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