Recombinant Human Fc gamma RIIIB/CD16b Protein, CF

(4 citations)   
  • Purity
    >90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
  • Endotoxin Level
    <0.10 EU per 1 μg of the protein by the LAL method.
  • Activity
    Measured by its ability to bind human IgG with an estimated KD <150 nM.
  • Source
    Mouse myeloma cell line, NS0-derived Thr20-Gln208, with a C-terminal 10-His tag
  • Accession #
  • N-terminal Sequence
    Analysis
    Thr20
  • Predicted Molecular Mass
    22.7 kDa
  • SDS-PAGE
    40-60 kDa, reducing conditions
Carrier Free
What does CF mean?
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
1597-FC/CF
 
1597-FC
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Reconstitution Reconstitute at 10 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Data Images
Binding Activity

Recombinant Human Fc gamma  RIIIB/CD16b (Catalog # 1597-FC/CF) binds human IgG with an estimated Kd 150 nM.

1 μg/lane of Recombinant Human Fc gamma  RIIIB/CD16b was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a band at 43-60 kDa.

Background: Fc gamma RIIIB/CD16b

Receptors for the Fc region of IgG (Fc gamma R) are members of the Ig superfamily. Based on their genetic organization and molecular structure, three classes of human Fc gamma Rs: RI (CD64), RII (CD32), and RIII (CD16), which generate multiple isoforms, are recognized (1 - 3). These receptors function in the activation or inhibition of immune responses. The activating-type receptor either has, or associates non-covalently with an accessory subunit (FcR gamma or zeta  chain) that has an immunoreceptor tyrosine-based activation motif (ITAM) in its cytoplasmic domain. In contrast, the inhibitory receptor (Fc gamma RIIB) has a built-in immunoreceptor tyrosine-based inhibitory motif (ITIM) in its own cytoplasmic domain. Fc gamma RI is a high-affinity receptor that binds monomeric IgG. Both Fc gamma RII and RIII are low-affinity receptors that bind IgG in the form of immune complexes. Two genes for human Fc gamma RIII, A and B, encoding a transmembrane receptor and a glycosylphosphatidylinositol (GPI) anchored protein, respectively, have been identified. Three allelic variants of Fc gamma RIIIB, NA-1, NA-2, and SH, exist. A soluble form of Fc gamma RIIIB corresponding to the extracellular region of the receptor is produced by proteolytic cleavage and circulates in plasma and other body fluids. The extracellular domains of Fc gamma RIIIA and B share 97% amino acid sequence homology. Whereas Fc gamma RIIIA is expressed on most effector cells of the immune system including macrophage, monocyte, NK cells, mast cells, eosinophils, dendritic cells and Langerhans cells, Fc gamma RIIIB is selectively expressed in neutrophils and eosinophils. Signaling through Fc gamma RIIIA results in oxidative burst, cytokine release and phagocytosis by macrophages, antibody-dependent cellular cytotoxicity by natural killer cells and degranulation of mast cells. By contrast, Fc gamma RIIIB is a decoy receptor that binds IgG complexes without triggering activation. Soluble Fc gamma RIIIB has a regulatory role in inflammatory processes (4). It interacts with complement receptors CR3 and CR4 on monocytes to induce the production of pro-inflammatory cytokines.

  • References:
    1. van de Winkel, J, and P. Capes (1993) Immunol. Today 14:215.
    2. Ravetch, J.V. and S. Bolland (2001) Annu. Rev. Immunol. 19:275.
    3. Takai, T. (2002) Nature Rev. Immunol. 2:580.
    4. Gauchat, G.J. et al. (1996) J. Immunol. 157:1184.
  • Long Name:
    Fc gamma Receptor III
  • Entrez Gene IDs:
    2215 (Human); 14131 (Mouse)
  • Alternate Names:
    CD16; CD16b antigen; CD16b; Fc fragment of IgG, low affinity IIIb, receptor (CD16b); Fc fragment of IgG, low affinity IIIb, receptor for (CD16); Fc gamma RIIIB; FCG3; Fc-gamma receptor IIIb (CD 16); Fc-gamma RIII; Fc-gamma RIIIb; Fc-gamma RIII-beta; FCGR3; FCGR3B; FcgRIIIB; FcR-10; fcRIII; FCRIIIB; IGFR3; IgG Fc receptor III-1; low affinity immunoglobulin gamma Fc region receptor III-B
Related Research Areas
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

4 Citations: Showing 1 - 4
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Species
Applications
Sample Type
  1. Increasing FcgammaRIIa affinity of an FcgammaRIII-optimized anti-EGFR antibody restores neutrophil-mediated cytotoxicity.
    Authors: Derer S, Glorius P, Schlaeth M, Lohse S, Klausz K, Muchhal U, Desjarlais J, Humpe A, Valerius T, Peipp M
    MAbs, 2014;6(2):409-21.
    Species: N/A
    Sample Type: Chip
    Application: Surface Plasmon Resonance
  2. Engineering of a novel anti-CD40L domain antibody for treatment of autoimmune diseases.
    Authors: Xie J, Yamniuk A, Borowski V, Kuhn R, Susulic V, Rex-Rabe S, Yang X, Zhou X, Zhang Y, Gillooly K, Brosius R, Ravishankar R, Waggie K, Mink K, Price L, Rehfuss R, Tamura J, An Y, Cheng L, Abramczyk B, Ignatovich O, Drew P, Grant S, Bryson J, Suchard S, Salter-Cid L, Nadler S, Suri A
    J Immunol, 2014;192(9):4083-92.
    Species: Human
    Sample Type: Whole Tissue
    Application: Bioassay
  3. Bi-specific Aptamers Mediating Tumor Cell Lysis.
    Authors: Boltz A, Piater B, Toleikis L, Guenther R, Kolmar H, Hock B
    J. Biol. Chem., 2011;286(24):21896-905.
    Species: Human
    Sample Type: DNA
    Application: EMSA
  4. Alpha-1 Antitrypsin regulates human neutrophil chemotaxis induced by soluble immune complexes and IL-8.
    Authors: Bergin DA, Reeves EP, Meleady P, Henry M, McElvaney OJ, Carroll TP, Condron C, Chotirmall SH, Clynes M, O'Neill SJ, McElvaney NG
    J. Clin. Invest., 2010;120(12):4236-50.
    Species: Human
    Sample Type: Recombinant Protein
    Application: ELISA capture
Primary Antibodies
Description Application Cat# Citations Images  

His Tag Antibody

WB, Simple Western, Flow, AP, CyTOF-ready MAB050 26  
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His Tag HRP-conjugated Antibody

WB, Simple Western MAB050H 3  
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His Tag APC-conjugated Antibody

ICFlow IC050A  
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His Tag Biotinylated Antibody

WB BAM050 4  
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His Tag PE-conjugated Antibody

ICFlow IC050P 2  
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His Tag Antibody

WB, Flow, AP MAB050R  
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His Tag Alexa Fluor® 488-conjugated Antibody

ICFlow IC050G  
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His Tag PerCP-conjugated Antibody

ICFlow IC050C  
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His Tag Alexa Fluor® 700-conjugated Antibody

ICFlow IC050N  
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Protein Purification Kits
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Histidine-tagged Protein Purification Resin

IP999 1
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