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Recombinant Biotinylated Human Fc gamma RIIA / CD32a (H167), (SPR & BLI verified), Avi Tag, His Tag, 25µg  

Recombinant Biotinylated Human Fc gamma RIIA / CD32a (H167), (SPR & BLI verified), Avi Tag, His Tag, 25µg

Biotinylated Human Fc gamma RIIA / CD32a (H167) Protein, (SPR & BLI verified), Ala 36 - Ile 218, expressed from human 293 cells (HEK293), Avitag™, His Tag

Synonym: recombinant, biotinylated, protein CD32a, FCGR2A, CD32, FCG2, FCGR2A1, IGFR2

More details

CDA-H82E6-25

Availability: within 7 days

300,00 €

Background
Receptors for the Fc region of IgG (Fc γ R) are members of the Ig superfamily that function in the activation or inhibition of immune responses. Three classes of human Fc γ Rs: RI (CD64), RII (CD32), and RIII (CD16), which generate multiple isoforms, are recognized. There are three genes for human Fcγ RII /CD32 (A, B, and C) and one for mouse Fcγ RII B (CD32B). CD32 is a low affinity receptor for IgG. The activating isoform, CD32A, is expressed on monocytes, neutrophils, platelets and dendritic cells. CD32A is expressed on many immune cell types (macrophage, neutrophil, eosinophils, platelets, dendritic cells and Langerhan cells), where inhibitory ITIM­bearing receptors may also be coexpressed and co­engaged by specific ligands. CD32A delivers an activating signal upon ligand binding, and results in the initiation of inflammatory responses including cytolysis, phagocytosis, degranulation and cytokine production. The responses can be modulated by signals from the coexpressed inhibitory receptors such as CD32B, and the strength of the signal is dependent on the ratio of expression of the activating and inhibitory receptors.

Recombinant Biotinylated Human FcGR2A / CD32a (H131) Protein was produced using proprietary single-point enzymatic biotinlabeling technology at C-terminus to retain its native conformational structure and, therefore, bioactivity, and has been used successfully for high sensitivity and low variability assays, such as ELISA, western blotting, inhibition assay, pull-down, SPR, FACS, and affinity purification, together with anti-biotin antibody, streptavidin or avidin-conjugated probes.

Source
Recombinant Biotinylated Human CD32a (H167), Avitag,His Tag (SPR & BLI verified) (CDA-H82E6) is expressed from human 293 cells (HEK293). It contains AA Ala 36 - Ile 218 (Accession # P12318-1 (H167)).
Predicted N-terminus: Ala 36

Molecular Characterization
This protein carries an Avi tag (Avitag™) at the C-terminus, followed by a polyhistidine tag.
The protein has a calculated MW of 24.0 kDa. The protein migrates as 30-38 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Biotinylation
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.

Biotin:Protein Ratio
The biotin to protein ratio is 0.5-1 as determined by the HABA assay.

Endotoxin
Less than 1.0 EU per μg by the LAL method.

Purity
>90% as determined by SDS-PAGE.

Formulation
Lyophilized from 0.22µm filtered solution in PBS (pH 7.4) with Trehalose as protectant.
Contact us for customized product form or formulation.

Reconstitution
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. No activity loss is observed after storage at: 4-8° C for 12 months in lyophilized state;
-70° C for 3 months under sterile conditions
after reconstitution.

Bioactivity
Please refer to product data sheet.

Product specific literature

(1) Ravetch JV. et al., 2001, Annu Rev Immunol. 19: 275-83.
(2) Takai T. 2002, Nature Rev Immunol. 2: 580-92.
(3) Nagarajan S. et al., 2000, Blood. 3: 1069-77.