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Name :
Human CD89/FCAR/FcalphaRI Protein, ECD (Extracellular Domain), Biotinylated, Recombinant

Description :
FCAR (Fc alpha receptor) or CD89 is a single-pass type I transmembrane protein belonging to the immunoglobulin (Ig) superfamily (IgSF). ICD89 contains two Ig-like C2-type domains in the extracellular region. CD89 binds to the Fc region of immunoglobulins alpha (IgA) and mediates several functions including cytokine production. CD89 associates with ITAM­containing signaling subunit FcRγ (Ig epsilon receptor subunit gamma) to form a functional signaling complex. CD89 is present on the surface of myeloid lineage cells such as neutrophils, monocytes, macrophages, and eosinophils, where it mediates immunologic responses to pathogens. CD89 recognizes IgA-opsonized targets and triggers several immunologic defense processes, including phagocytosis, antibody-dependent cell-mediated cytotoxicity (ADCC), and stimulation of the release of inflammatory mediators. There are multiple alternatively splicing variants encoding different isoforms of CD89.

Gene Symbol :

NCBI Gene ID :
2204

Uniprot Entry :
P24071

Construct Details :
The recombinant human FCAR/CD89 ECD protein is expressed as a 227 amino acid protein consisting of Gln22 – Gln226 region of CD89 and a C-terminal HA-tag and His-tag. It contains 6 potential sites for N-linked glycosylation.

Source :
Human cells stably expressing human FCAR/CD89 ECD and growing in chemical-defined media with no animal components or antibiotics

Amino Acid Sequence: :
10 20 30 40 50 60 QEGDFPMPFI SAKSSPVIPL DGSVKIQCQA IREAYLTQLM IIKNSTYREI GRRLKFWNET 70 80 90 100 110 120 DPEFVIDHMD ANKAGRYQCQ YRIGHYRFRY SDTLELVVTG LYGKPFLSAD RGLVLMPGEN 130 140 150 160 170 180 ISLTCSSAHI PFDRFSLAKE GELSLPQHQS GEHPANFSLG PVDLNVSGIY RCYGWYNRSP 190 200 210 220 YLWSFPSNAL ELVVTDSIHQ DYTTQSTYPY DVPDYASTGH HHHHHHH

M.W. :
Calculated molecular mass (kDa): 26.0; Estimated by SDS-PAGE under reducing condition (kDa): 50-55

Calculated PI :
6.26

Calculated Extinction Coefficients :
(M-1 cm-1, at 280nm): 39100

Endotoxin Level :
>95% judged by SDS-PAGE under reducing condition (see the gel image above)

Formulation :
Supplied at 0.5 mg/ml in sterile PBSpH7.4 (carrier & preservative free). The purified recombinant protein was labeled with Biotin (3-5 Biotin per molecule) using the standard procedure.

Endotoxin Level :
<0.1 EU per 1 μg of purified recombinant protein determined by the LAL method

Biological Activity :

Molecule Class :
1-Pass Type I Transmembrane

Gene Synonym :
<0.1 EU per 1 μg of purified recombinant protein determined by the LAL method

Gene Family :
FCAR; CD89; FcalphaRI; CTB-61M7.2

Research Area :
Immunology

Pathway/Disease :
Immune Responses

Species :
Human

CD Antigen :
CD89

References :

MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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