Human Fc gamma  RI/CD64 Antibody

Clone 10.1 was used by HLDA to establish CD designation.
(2 citations)   
  • Species Reactivity
    Human
  • Specificity
    Detects human Fc gamma RI/CD64.
  • Source
    Monoclonal Mouse IgG1 Clone # 10.1
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Rheumatoid synovial fluid cells and fibronectin purified monocytes
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Flow Cytometry
    0.25 µg/106 cells
    See below
  • CyTOF-ready
    Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
  • Immunocytochemistry
    8-25 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Fc gamma  RI/CD64 in Human Blood Monocytes by Flow Cytometry. Human peripheral blood monocytes were stained with Mouse Anti-Human Fc gamma  RI/CD64 Monoclonal Antibody (Catalog # MAB1257, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). View our protocol for Staining Membrane-associated Proteins.
Immunocytochemistry
Fc gamma  RI/CD64 in U937 Human Cell Line. Fc gamma  RI/CD64 was detected in immersion fixed U937 human histiocytic lymphoma cell line using Mouse Anti-Human Fc gamma  RI/CD64 Monoclonal Antibody (Catalog # MAB1257) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; Catalog # NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Preparation and Storage
  • Reconstitution
    Reconstitute at 0.5 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Fc gamma RI/CD64

Receptors for the Fc region of IgG (Fc gamma Rs) are members of the Ig superfamily that function in the activation or inhibition of immune responses such as degranulation, phagocytosis, ADCC (antibody-dependent cellular toxicity), cytokine release, and B cell proliferation (1‑3). The Fc gamma Rs have been divided into three classes based on close relationships in their extracellular domains; these groups are designated Fc gamma  RI (also known as CD64), Fc gamma  RII (CD32), and Fc gamma  RIII (CD16). Each group may be encoded by multiple genes and exist in different isoforms depending on species and cell type. The CD64 proteins are high affinity receptors
(~10‑8  10‑9 M) capable of binding monomeric IgG, whereas the CD16 and CD32 proteins bind IgG with lower affinities (~10‑6  10‑7 M) only recognizing IgG aggregates surrounding multivalent antigens (1, 4). Fc gamma Rs that deliver an activating signal either have an intrinsic immunoreceptor tyrosine-based activation motif (ITAM) within their cytoplasmic domains or associate with one of the ITAM-bearing adapter subunits, Fc R gamma or zeta (3, 5). The only inhibitory member in human and mouse, Fc gamma  RIIb, has an intrinsic cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM). The coordinated functioning of activating and inhibitory receptors is necessary for successful initiation, amplification, and termination of immune responses (5). Three highly homologous genes (A, B, and C) sharing 98% identity at the nucleotide level have been identified for the human CD64 group (1). Fc gamma RI is transmembrane protein with three extracellular Ig-like domains, and it delivers an activating signal via the associatedFc R gamma accessory chain. The genes for Fc gamma  RIB and Fc gamma  RIC contain stop codons within their membrane proximal Ig-like domains indicating possible secreted receptors (1, 6). An mRNA splice variant of Fc gamma RIB has a deletion of the membrane-proximal Ig-like domain and encodes a putative transmembrane receptor (6). The high affinity recognition of IgG by Fc gamma RI permits the triggering of effector responses at low IgG concentrations typical of early immune responses (2). Fc gamma RI is expressed constitutively on monocytes and macrophages and can be induced on neutrophils and eosinophils (1, 4). Its expression is up‑regulated during bacterial infections and sepsis.

  • References:
    1. Van de Winkel, J. and P. Capes (1993) Immunol. Today 14:215. 
    2. Raghaven, M. and P. Bjorkman (1996) Annu. Rev. Cell Dev. Biol. 12:181.
    3. Ravetch, J. and S. Bolland (2001) Annu. Rev. Immunol. 19:275.
    4. Takai, T. (2002) Nature Rev. Immunol. 2:580.
    5. Ravetch, J. and L. Lanier (2000) Science 290:84.
    6. Ernst, L. et al. (1998) Mol Immunol. 35:943.
  • Long Name:
    Fc gamma Receptor I
  • Entrez Gene IDs:
    2209 (Human); 2209 (Human); 14129 (Mouse); 295279 (Rat); 295279 (Rat); 102147198 (Cynomolgus Monkey); 102147198 (Cynomolgus Monkey)
  • Alternate Names:
    CD64 antigen; CD64; Fc fragment of IgG, high affinity Ia, receptor (CD64); Fc gamma RI; FCG1; Fc-gamma receptor I B2; Fc-gamma RI; Fc-gamma RIA; FcgammaRIa; FCGR1; FcgRI; FCRI; FLJ18345; high affinity Ia, receptor for (CD64); high affinity immunoglobulin gamma Fc receptor I; IgG Fc receptor I
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.

2 Citations: Showing 1 - 2
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Species
Applications
Sample Type
  1. Expression of the CD85j (leukocyte Ig-like receptor 1, Ig-like transcript 2) receptor for class I major histocompatibility complex molecules in idiopathic inflammatory myopathies.
    Authors: Schleinitz N, Cognet C, Guia S, Laugier-Anfossi F, Baratin M, Pouget J, Pelissier JF, Harle JR, Vivier E, Figarella-Branger D
    Arthritis Rheum., 2008;58(10):3216-23.
    Species: Human
    Sample Type: Whole Tissue
    Application: IHC Frozen
  2. Excessive exposure to anionic surfaces maintains autoantibody response to 2-glycoprotein I in patients with antiphospholipid syndrome.
    Authors: Yamaguchi Y, Seta N, Kaburaki J, Kobayashi K, Matsuura E, Kuwana M
    Blood, 2007;110(13):4312-8.
    Species: Human
    Sample Type: Whole Cells
    Application: Neut
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