Human NKp46/NCR1 Fluorescein-conjugated Antibody

Clone 195314 was used by HLDA to establish CD designation.
(1 citations)   
  • Species Reactivity
  • Specificity
    Detects human NKp46/NCR1 in direct ELISAs and Western blots.
  • Source
    Monoclonal Mouse IgG2B Clone # 195314
  • Purification
    Protein A or G purified from hybridoma culture supernatant
  • Immunogen
    Mouse T cell hybridoma transfected with human NKp46/NCR1
  • Formulation
    Supplied in a saline solution containing BSA and Sodium Azide.
  • Label
  • Flow Cytometry
    10 µL/106 cells
    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 NKp46/NCR1 in Human PBMCs by Flow Cytometry. Human peripheral blood mononuclear cells (PBMCs) were stained with Mouse Anti-Human NCAM‑1/CD56 PE‑conjugated Monoclonal Antibody (Catalog # FAB2408P) and either (A) Mouse Anti-Human NKp46/NCR1 Fluorescein‑conjugated Monoclonal Antibody (Catalog # FAB1850F) or (B) Mouse IgG2B Fluorescein Isotype Control (Catalog # IC0041F). View our protocol for Staining Membrane-associated Proteins.
Preparation and Storage
  • Shipping
    The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Protect from light. Do not freeze.
    • 12 months from date of receipt, 2 to 8 °C as supplied.
Background: NKp46/NCR1

NKp46, along with NKp30 and NKp44, are activating receptors that have been collectively termed the natural cytotoxicity receptors (NCR) (1). These receptors lack significant sequence homology to one another. They are expressed almost exclusively by NK cells and play a major role in triggering some of the key lytic activities of NK cells. The CD56dimCD16+ subpopulation that makes up the majority of NK cells in the peripheral blood and spleen expresses NKp46 in both resting and activated states (2). The main NK cell population of the lymph node (CD56brightCD16-) expresses low levels of NKp46 in resting cells, but expression is up-regulated by IL-2. NKp46 is a type I transmembrane protein with two extracellular Ig-like domains followed by a short stalk region, a transmembrane domain containing a positively charged amino acid residue, and a short cytoplasmic tail. Through its positive charge in the transmembrane domain, NKp46 associates with the ITAM‑bearing signal adapter proteins, CD3 zeta and Fc epsilon R1 gamma, which are able to form disulfide-linked homodimers and heterodimers (3, 8). Studies with neutralizing antibodies indicate that the three NCRs are primarily responsible for triggering the NK-mediated lysis of many human tumor cell lines. Blocking any of the NCRs individually resulted in partial inhibition of tumor cell lysis, but nearly complete inhibition of lysis was observed if all three receptors were blocked simultaneously (4). NKp46 has also been implicated in recognition of virus-infected cells through its capacity to bind to viral hemagglutinins (5‑7). Human NKp46 shares 58% and 59% amino acid sequence identity with the mouse and rat proteins, respectively.

  • References:
    1. Moretta, L. and A. Moretta (2004) EMBO J. 23:255. 
    2. Ferlazzo, G. et al. (2004) J. Immunol. 172:1455.
    3. Augugliaro, R. et al. (2003) Eur. J. Immunol. 33:1235. 
    4. Pende, D. et al. (1999) J. Exp. Med. 190:1505.
    5. Arnon, T. et al. (2004) Blood 103:664.
    6. Arnon, T. et al. (2001) Eur. J. Immunol. 31:2680.
    7. Mandelboim, O. et al. (2001) Nature 409:1055.
    8. Moretta, A. et al. (2001) Annu. Rev. Immunol. 19:197.
  • Entrez Gene IDs:
    9437 (Human); 17086 (Mouse)
  • Alternate Names:
    CD335 antigen; CD335; hNKp46; Ly94; LY94lymphocyte antigen 94 homolog (activating NK-receptor; NK-p46); Lymphocyte antigen 94 homolog; MAR-1; natural cytotoxicity triggering receptor 1; Natural killer cell p46-related protein; NCR1; NK cell-activating receptor; NKp46; NKP46FLJ99094; NK-p46lymphocyte antigen 94 (mouse) homolog (activating NK-receptor; NK-p46)
Related Research Areas

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.

Showing Results 1 - 1 of 1

  1. Development of functional human NK cells in an immunodeficient mouse model with the ability to provide protection against tumor challenge.
    Authors: Kwant-Mitchell A, Pek EA, Rosenthal KL
    PLoS ONE, 2009;4(12):e8379.
    Species: Human
    Sample Type: Whole Cells
    Application: Flow
Isotype Controls
Description Application Cat# Citations Images  

Mouse IgG2B Fluorescein‑conjugated Control Antibody

Ctrl IC0041F 6  
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Staining Reagents
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Flow Cytometry Staining Buffer (1X)

Flow FC001 3
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Flow Cytometry Mouse Lyse Buffer (10X)

Flow FC003 1
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Flow Cytometry Human Lyse Buffer (10X)

Flow FC002 1
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