Recombinant Human NKp46/NCR1 Fc Chimera Protein, CF

Catalog # Availability Size / Price Qty
1850-NK-025
R&D Systems Recombinant Proteins and Enzymes
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Citations (14)
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Recombinant Human NKp46/NCR1 Fc Chimera Protein, CF Summary

Product Specifications

Purity
>95%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by its ability to bind Recombinant Human Vimentin (Catalog # 2105-VI) in a functional ELISA with an estimated KD < 2 nM. Garg, A. et al. (2006) J. Immunol. 177:6192.
Source
Mouse myeloma cell line, NS0-derived human NKp46/NCR1 protein
Human NKp46
(Gln22 - Asn254)
Accession #AAH64806
IEGRMD Human IgG1
(Pro100 - Lys330)
N-terminus C-terminus
Accession #
N-terminal Sequence
Analysis
No results obtained: Gln22 predicted
Structure / Form
Disulfide-linked homodimer
Predicted Molecular Mass
53 kDa (monomer)
SDS-PAGE
60-80 kDa, reducing conditions

Product Datasheets

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.

1850-NK

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
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.
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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.
Entrez Gene IDs
9437 (Human); 17086 (Mouse); 100141419 (Porcine); 102115479 (Cynomolgus Monkey)
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)

Citations for Recombinant Human NKp46/NCR1 Fc Chimera Protein, CF

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.

14 Citations: Showing 1 - 10
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  1. Expression of ligands for activating natural killer cell receptors on cell lines commonly used to assess natural killer cell function
    Authors: A Tremblay-M, S Coenraads, Z Kiani, FP Dupuy, NF Bernard
    BMC Immunol., 2019;20(1):8.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Frequency and role of NKp46 and NKG2A in hepatitis B virus infection
    Authors: T Yoshioka, T Tatsumi, T Miyagi, K Mukai, K Nishio, A Nishio, Y Yokoyama, T Suda, T Kegasawa, M Shigekawa, H Hikita, R Sakamori, T Takehara
    PLoS ONE, 2017;12(3):e0174103.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  3. Impaired NK-mediated regulation of T-cell activity in multiple sclerosis is reconstituted by IL-2 receptor modulation
    Proc Natl Acad Sci USA, 2016;113(21):E2973-82.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Enzyme Assay
  4. Microchip-Based Single-Cell Imaging Reveals That CD56dimCD57-KIR-NKG2A+ NK Cells Have More Dynamic Migration Associated with Increased Target Cell Conjugation and Probability of Killing Compared to CD56dimCD57-KIR-NKG2A- NK Cells.
    Authors: Forslund E, Sohlberg E, Enqvist M, Olofsson P, Malmberg K, Onfelt B
    J Immunol, 2015;195(7):3374-81.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  5. Human Induced Pluripotent Stem Cells Are Targets for Allogeneic and Autologous Natural Killer (NK) Cells and Killing Is Partly Mediated by the Activating NK Receptor DNAM-1.
    Authors: Kruse V, Hamann C, Monecke S, Cyganek L, Elsner L, Hubscher D, Walter L, Streckfuss-Bomeke K, Guan K, Dressel R
    PLoS ONE, 2015;10(5):e0125544.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  6. A polysaccharide virulence factor of a human fungal pathogen induces neutrophil apoptosis via NK cells.
    Authors: Robinet P, Baychelier F, Fontaine T, Picard C, Debre P, Vieillard V, Latge J, Elbim C
    J Immunol, 2014;192(11):5332-42.
    Species: Human
    Sample Types: Whole Blood
    Applications: Bioassay
  7. Rescue of impaired NK cell activity in hodgkin lymphoma with bispecific antibodies in vitro and in patients.
    Authors: Reiners K, Kessler J, Sauer M, Rothe A, Hansen H, Reusch U, Hucke C, Kohl U, Durkop H, Engert A, von Strandmann E
    Mol Ther, 2013;21(4):895-903.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  8. Human cytomegalovirus infection elicits new decidual natural killer cell effector functions.
    Authors: Siewiera J, El Costa H, Tabiasco J, Berrebi A, Cartron G, Le Bouteiller P, Jabrane-Ferrat N
    PLoS Pathog, 2013;9(4):e1003257.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay
  9. Tyrosine kinase pathways modulate tumor susceptibility to natural killer cells.
    Authors: Bellucci R, Nguyen HN, Martin A, Heinrichs S, Schinzel AC, Hahn WC, Ritz J
    J. Clin. Invest., 2012;122(7):2369-83.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  10. Human Herpesvirus 8 (HHV8) sequentially shapes the NK cell repertoire during the course of asymptomatic infection and Kaposi sarcoma.
    Authors: Dupuy S, Lambert M, Zucman D, Choukem SP, Tognarelli S, Pages C, Lebbe C, Caillat-Zucman S
    PLoS Pathog., 2012;8(1):e1002486.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  11. Direct binding of human NK cell natural cytotoxicity receptor NKp44 to the surfaces of mycobacteria and other bacteria.
    Authors: Esin S, Batoni G, Counoupas C, Stringaro A, Brancatisano FL, Colone M, Maisetta G, Florio W, Arancia G, Campa M
    Infect. Immun., 2008;76(4):1719-27.
    Species: Bacteria
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  12. Bortezomib down-regulates the cell-surface expression of HLA class I and enhances natural killer cell-mediated lysis of myeloma.
    Authors: Shi J, Tricot GJ, Garg TK, Malaviarachchi PA, Szmania SM, Kellum RE, Storrie B, Mulder A, Shaughnessy JD, Barlogie B, van Rhee F
    Blood, 2007;111(3):1309-17.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  13. HIV modulates the expression of ligands important in triggering natural killer cell cytotoxic responses on infected primary T-cell blasts.
    Authors: Ward J, Bonaparte M, Sacks J, Guterman J, Fogli M, Mavilio D, Barker E
    Blood, 2007;110(4):1207-14.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  14. Human T-cell leukemia virus type 1 (HTLV-1) p12I down-modulates ICAM-1 and -2 and reduces adherence of natural killer cells, thereby protecting HTLV-1-infected primary CD4+ T cells from autologous natural killer cell-mediated cytotoxicity despite the reduction of major histocompatibility complex class I molecules on infected cells.
    Authors: Banerjee P, Feuer G, Barker E
    J. Virol., 2007;81(18):9707-17.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry

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