FcERI / FCER1A recombinant protein

Recombinant Human FcERI / FCER1A Protein (His tag)

Cat. Num. AAA2545380

• Gene Names: FCER1A; FCE1A; FcERI
• Purity: > 95 % as determined by SDS-PAGE
• Synonyms: FcERI / FCER1A; Recombinant Human FcERI / FCER1A Protein (His tag); FCER1A; FCE1A; FcERI / FCER1A recombinant protein

• Host: Human Cells
• Purity/Purification: > 95 % as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH 7.4
• Sequence Length: 257

• Application Notes: The recombinant human FCER1A consists of 191 amino acids and predicts a molecular mass of 24.5 KDa. It migrates as an approximately 42-48 KDa band in SDS-PAGE under reducing conditions.
• Predicted N Terminal: Val 26
• Endotoxin: < 1.0 EU per mug of the protein as determined by the LAL method
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -70 degree C

SDS-PAGE

Related Product Information for FcERI / FCER1A recombinant protein

Background: FcERI, also known as FCER1A, is the alpha subunit of the immunoglobulin epsilon receptor (IgE receptor). IgE receptor is a high affinity IgE receptor which plays a central role in allergic disease, coupling allergen and mast cell to initiate the inflammatory and immediate hypersensitivity responses that are characteristic of disorders such as hay fever and asthma. The allergic response occurs when 2 or more IgE receptors are crosslinked via IgE molecules that in turn are bound to an allergen (antigen) molecule. A perturbation occurs that brings about the release of histamine and proteases from the granules in the cytoplasm of the mast cell and leads to the synthesis of prostaglandins and leukotrienes--potent effectors of the hypersensitivity response. IgE receptor is comprised of an alpha subunit (FcERI), a beta subunit, and two gamma subunits. FcERI is glycosylated and contains 2 Ig-like (immunoglobulin-like) domains.

Description: A DNA sequence encoding the human FCER1A (P12319) (Met1-Gln205) was expressed with a polyhistidine tag at the C-terminus.

NCBI and Uniprot Product Information

• NCBI GI #: 4503675
• NCBI GeneID: 2205
• NCBI Accession #: NP_001992.1
• NCBI GenBank Nucleotide #: NM_002001.3
• UniProt Accession #: P12319
• Molecular Weight: 29,596 Da
• NCBI Official Full Name: high affinity immunoglobulin epsilon receptor subunit alpha
• NCBI Official Synonym Full Names: Fc fragment of IgE receptor Ia
• NCBI Official Symbol: FCER1A
• NCBI Official Synonym Symbols: FCE1A; FcERI
• NCBI Protein Information: high affinity immunoglobulin epsilon receptor subunit alpha
• UniProt Protein Name: High affinity immunoglobulin epsilon receptor subunit alpha
• UniProt Gene Name: FCER1A
• UniProt Synonym Gene Names: FCE1A; FcERI

NCBI Description

The immunoglobulin epsilon receptor (IgE receptor) is the initiator of the allergic response. When two or more high-affinity IgE receptors are brought together by allergen-bound IgE molecules, mediators such as histamine that are responsible for allergy symptoms are released. This receptor is comprised of an alpha subunit, a beta subunit, and two gamma subunits. The protein encoded by this gene represents the alpha subunit. [provided by RefSeq, Aug 2011]

Uniprot Description

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.