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Human NKp46/NCR1 Antibody

R&D Systems | Catalog # MAB1850

Clone 195314 was used by HLDA to establish CD designation
R&D Systems

Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human, Mouse

Applications

Validated:

Immunohistochemistry, Western Blot, Flow Cytometry, Dual RNAscope ISH-IHC Compatible, Immunocytochemistry, Agonist Activity, CyTOF-reported

Cited:

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Neutralization, Flow Cytometry, Immunocytochemistry, Binding Assay, Bioassay, ELISA Capture, Epitope Mapping, FRET, Functional Assay

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2B Clone # 195314
View all NKp46/NCR1 Primary Antibodies »

Product Specifications

Immunogen

Mouse T cell hybridoma transfected with human NKp46/NCR1

Specificity

Detects human NKp46/NCR1 in direct ELISAs and Western blots.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Human NKp46/NCR1 Antibody

NKp46/NCR1 antibody in NK-92 Human Cell Line and Human PBMCs by Immunocytochemistry (ICC).

NKp46/NCR1 in NK-92 Human Cell Line and Human PBMCs.

NKp46/NCR1 was detected in immersion fixed NK-92 human natural killer lymphoma cell line (left panel, positive stain) and human peripheral blood mononuclear cells (PBMCs; right panel, negative stain) using Mouse Anti-Human NKp46/NCR1 Monoclonal Antibody (Catalog # MAB1850) 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.
NKp46/NCR1 antibody in Human Tonsil by Immunohistochemistry (IHC-P).

NKp46/NCR1 in Human Tonsil.

NKp46/NCR1 was detected in immersion fixed paraffin-embedded sections of human tonsil using Mouse Anti-Human NKp46/NCR1 Monoclonal Antibody (Catalog # MAB1850) at 5 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to natural killer cells in germinal center. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Detection of NKp46/NCR1 in Human PBMCs by Flow Cytometry.

Human peripheral blood mononuclear cells (PBMCs) were stained with (A) Mouse Anti-Human NKp46/NCR1 Monoclonal Antibody (Catalog # MAB1850) or (B) Mouse IgG2B Isotype Control (MAB0041) followed by Goat anti-Mouse IgG APC-conjugated Secondary Antibody (F0101B) and Rabbit Anti-Human NCAM-1/CD56 PE-conjugated Monoclonal Antibody (FAB24086P). Staining was performed using our Staining Membrane-associated Proteins protocol.

Detection of NKp46/NCR1 in Human Tonsil.

Formalin-fixed paraffin-embedded tissue sections of human tonsil were probed for NKp46 mRNA (ACD RNAScope Probe, catalog #312658; Fast Red chromogen, ACD catalog # 322750). Adjacent tissue section was processed for immunohistochemistry using mouse anti-human NKp46 monoclonal antibody (R&D Systems catalog # MAB1850) at 15ug/mL with overnight incubation at 4 degrees Celsius followed by incubation with anti-mouse IgG VisUCyte HRP Polymer Antibody (Catalog # VC001) and DAB chromogen (yellow-brown). Tissue was counterstained with hematoxylin (blue). Specific staining was localized to cell surface.

Applications for Human NKp46/NCR1 Antibody

Application
Recommended Usage

Agonist Activity

Measured by its ability to induce IFN-gamma secretion by NK-92 human natural killer lymphoma cells.
The ED50 for this effect is typically ≤ 1 μg/mL.

CyTOF-reported

Horowitz, A. et al. Sci. Transl. Med. (2013) 208ra145. Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Dual RNAscope ISH-IHC Compatible

3-25 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human tonsil

Flow Cytometry

0.25 µg/106 cells
Sample: Human whole blood CD56+ natural killer cells

Immunocytochemistry

8-25 µg/mL
Sample: Immersion fixed NK‑92 human natural killer lymphoma cell line and human peripheral blood mononuclear cells (PBMCs)

Immunohistochemistry

5-25 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human tonsil

Western Blot

1 µg/mL
Sample: Recombinant Human NKp46/NCR1 Fc Chimera (Catalog # 1850-NK)

Reviewed Applications

Read 8 reviews rated 4.1 using MAB1850 in the following applications:

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. See Certificate of Analysis for details.
*Small pack size (-SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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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.

Alternate Names

CD335, Ly94, MAR-1, NCR1

Entrez Gene IDs

9437 (Human); 17086 (Mouse); 100141419 (Porcine); 102115479 (Cynomolgus Monkey)

Gene Symbol

NCR1

Additional NKp46/NCR1 Products

Product Documents for Human NKp46/NCR1 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human NKp46/NCR1 Antibody

For research use only

Citations for Human NKp46/NCR1 Antibody

Customer Reviews for Human NKp46/NCR1 Antibody (8)

4.1 out of 5
8 Customer Ratings
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Showing  1 - 5 of 8 reviews Showing All
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  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunohistochemistry
    Sample Tested: Cancer Tissue
    Species: Human
    Verified Customer | Posted 11/12/2025
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunocytochemistry/Immunofluorescence
    Sample Tested: Natural killer cells
    Species: Human
    Verified Customer | Posted 08/09/2021
    NKp46/NCR1 in NK-92 human natural killer lymphoma cell line
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Aida Meghraoui
    Application: Imaging Mass Cytometry
    Sample Tested: FFPE and human cutaneous squamous cell carcinoma
    Species: Human
    Verified Customer | Posted 10/05/2020
    Mass Cytometry - Image of human cutaneous squamous cell carcinoma tumor stained with Anti-NKp46/NCR1 Antibody [195314] (in red).
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunohistochemistry
    Sample Tested: Lymph node tissue
    Species: Human
    Verified Customer | Posted 05/18/2018
    Paraffin embedded lymph node metastasis samples Antigen retrieval: Citrat buffer Antibody Dilution: 1:50 Buffer: TBS-T At this concentration, the isotype showed no specific staining, whereas MAB1850 showed clear surface staining of cells.
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Becker Law
    Application: Immunocytochemistry/Immunofluorescence
    Sample Tested: Kidney (cortex) tissue
    Species: Human
    Verified Customer | Posted 10/01/2017
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunocytochemistry/Immunofluorescence
    Sample Tested: Natural killer cells
    Species: Human
    Verified Customer | Posted 10/26/2015
    Human NKp46/NCR1 MAb (Clone 195314), works well for detection of NKp46 on surface of NK cells. <br />Specificity: Reasonably specific<br />Sensitivity: Reasonably sensitive<br />Buffer: PBS<br />Dilution: 1:500
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunohistochemistry
    Sample Tested: Colon tissue
    Species: Human
    Verified Customer | Posted 10/26/2015
    At this concentration there is little backgroud. <br />Specificity: Reasonably specific<br />Sensitivity: Reasonably sensitive<br />Buffer: PBS<br />Dilution: 1:500
    Human NKp46/NCR1 Antibody MAB1850
  • Human NKp46/NCR1 Antibody
    Name: Anonymous
    Application: Immunohistochemistry
    Sample Tested: Colon tissue
    Species: Human
    Verified Customer | Posted 10/26/2015
    Seems like the immune cells show a little staining. At 1:250 all cells showed staining. Dilutions are important. <br />Specificity: Reasonably specific<br />Sensitivity: Reasonably sensitive<br />Buffer: PBS<br />Dilution: 1:1000
    Human NKp46/NCR1 Antibody MAB1850

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