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Your Position: Home > Protein > Fc gamma RIIA / CD32a > CDA-H5221

Human Fc gamma RIIA / CD32a (R167) Protein, His Tag (MALS & BLI verified)

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  • Synonym
    CD32a,FCGR2A,CD32,FCG2 ,FCGR2A1,IGFR2
  • Source
    Human CD32a (R167), His Tag(CDA-H5221) is expressed from human 293 cells (HEK293). It contains AA Ala 36 - Ile 218 (Accession # P12318-1 (H167R)).
    Predicted N-terminus: Ala 36
  • Molecular Characterization
    Fc gamma RIIA / CD32a Structure

    This protein carries a polyhistidine tag at the C-terminus.

    The protein has a calculated MW of 21.6 kDa. The protein migrates as 25-35 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

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

    >95% as determined by SDS-PAGE.

    >90% 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:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 12 months under sterile conditions after reconstitution.
SDS-PAGE
Fc gamma RIIA / CD32a SDS-PAGE

Human CD32a (R167), His Tag 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
Fc gamma RIIA / CD32a MALS images

The purity of Human CD32a (R167), His Tag (Cat. No. CDA-H5221) is more than 90% and the molecular weight of this protein is around 25-35 kDa verified by SEC-MALS.

Bioactivity-SPR
 Fc gamma RIIA / CD32a SPR

Immobilized Human CD32a (R167), His Tag (Cat. No. CDA-H5221) on CM5 Chip via anti-His antibody, can bind  Rituximab with an affinity constant of 3.12 μM as determined in a SPR assay (Biacore T200) (Routinely tested).

 Fc gamma RIIA / CD32a SPR

Rituximab captured on Protein A Chip can bind Human CD32a (R167), His Tag (Cat. No. CDA-H5221) with an affinity constant of 1.02 μM as determined in SPR assay (Biacore 8K) (Routinely tested).

 Fc gamma RIIA / CD32a SPR

Rituximab immobilized on CM5 Chip can bind Human CD32a (R167), His Tag (Cat. No. CDA-H5221) with an affinity constant of 1.23 μM as determined in SPR assay (Biacore 8K) (Routinely tested).

Bioactivity-BLI
 Fc gamma RIIA / CD32a BLI

Loaded Rituximab on Protein A Biosensor, can bind Human CD32a (R167), His Tag (Cat. No. CDA-H5221) with an affinity constant of 1.5 μM as determined in BLI assay (ForteBio Octet Red96e) (QC tested).

 Fc gamma RIIA / CD32a BATCH BLI
 Fc gamma RIIA / CD32a BLI

Loaded Human CD32a (R167), His Tag (Cat. No. CDA-H5221) on HIS1K Biosensor, can bind Rituximab with an affinity constant of 1.4 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

 Fc gamma RIIA / CD32a BLI

Loaded Human IgG2 Fc, Tag Free (Cat. No. IG2-H5206) on Protein A Biosensor, can bind Human CD32a (R167), His Tag (Cat. No. CDA-H5221) with an affinity constant of 4.7 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

 Fc gamma RIIA / CD32a BLI

Loaded Human CD32a (R167), His Tag (Cat. No. CDA-H5221) on HIS1K Biosensor, can bind Human IgG2 Fc, Tag Free (Cat. No. IG2-H4260) with an affinity constant of 2.6 μM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

  • 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.
  • Clinical and Translational Updates

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  • Number of Drugs in Clinical Trials:2 Details
  • Latest Research Phase:Phase 1 Clinical

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