The monoclonal antibody 29A1.4 specifically binds to mouse CD335, also known as NKp46. NKp46 is a 46 kDa type I transmembrane glycoprotein that is a member of the natural cytotoxicity receptor (NCR) family and immunoglobulin superfamily. NKp46 is encoded by the Ncr1 gene located on chromosome 7. NKp46 functions as a cytotoxicity triggering receptor and is selectively expressed by immature and mature NK cells in all mouse strains tested. NKp46 is detected on a minute fraction of NK-like T cells (less than 2 % of NKp46+ express CD3e) but not on CD1d-restricted NKT cells from C57BL/6 mice. When immobilized on tissue culture plates, the 29A1.4 antibody reportedly stimulates NK cells to produce interferon-gamma and to release their cytoplasmic granule contents. Although the ligands for the NKp46 receptor have not been fully characterized, recent evidence indicates that this receptor plays an important role in the NK cell-mediated recognition and killing of some virus-infected cells and tumor cells. The immunogen used to generate the 29A1.4 clone was mouse NKp46-Fc recombinant protein. Flow cytometric analysis of CD335 (NKp46) expression on mouse splenocytes. C57BL/6 and BALB/c mouse spleen cells were stained separately with Purified anti-mouse CD335 (NKp46) antibody followed by PE-conjugated Goat anti-rat Ig (Cat. No. 550767). After washing, C57BL/6 cells were stained with APC-conjugated anti-mouse NK-1.1 (NKR-P1B and NKR-P1C) antibody (Cat. No.550627, left panel) and BALB/c cells were stained with FITC-conjugated anti-mouse CD49b (DX5) antibody (Cat. No.553857, right panel). Two-color dot plots showing the correlated expression patterns of CD335/NKp46 and either NK-1.1/CD161 (C57BL/6 cells, left panel) or DX5/CD49b (BALB/c cells, right panel) were derived from gated events with the forward and side light-scatter characteristics of viable lymphocytes. Flow cytometry was performed using a BD™ LSRII System.
BD Pharmingen™ Purified Rat Anti-Mouse CD335 (NKp46) - Purified - Clone 29A1.4 - Isotype Rat IgG2a, κ - Reactivity Ms - 0.5 mg
Purification
The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Stock
4 °C
Stockage commentaire
Store undiluted at 4°C.
Joncker, Fernandez, Treiner, Vivier, Raulet: "NK cell responsiveness is tuned commensurate with the number of inhibitory receptors for self-MHC class I: the rheostat model." dans: Journal of immunology (Baltimore, Md. : 1950), Vol. 182, Issue 8, pp. 4572-80, (2009) (PubMed).
Walzer, Bléry, Chaix, Fuseri, Chasson, Robbins, Jaeger, André, Gauthier, Daniel, Chemin, Morel, Dalod, Imbert, Pierres, Moretta, Romagné, Vivier: "Identification, activation, and selective in vivo ablation of mouse NK cells via NKp46." dans: Proceedings of the National Academy of Sciences of the United States of America, Vol. 104, Issue 9, pp. 3384-9, (2007) (PubMed).
Gazit, Gruda, Elboim, Arnon, Katz, Achdout, Hanna, Qimron, Landau, Greenbaum, Zakay-Rones, Porgador, Mandelboim: "Lethal influenza infection in the absence of the natural killer cell receptor gene Ncr1." dans: Nature immunology, Vol. 7, Issue 5, pp. 517-23, (2006) (PubMed).
Biassoni, Pessino, Bottino, Pende, Moretta, Moretta: "The murine homologue of the human NKp46, a triggering receptor involved in the induction of natural cytotoxicity." dans: European journal of immunology, Vol. 29, Issue 3, pp. 1014-20, (1999) (PubMed).