NKp30, along with NKp44 and NKp46, constitute a group of receptors termed “Natural Cytotoxicity Receptors” (1). These receptors play a major role in triggering NK-mediated killing of most tumor cells lines. NKp30 is a type I transmembrane protein having a single extracellular V-like immunoglobulin domain (2). A physical association with the ITAM‑bearing accessory protein, CD3 zeta, occurs via a charged residue in the NKp30 transmembrane domain. Ligation of NKp30 with a specific antibody results in phosphorylation of CD3 zeta (3). NKp30 is expressed on both resting and activated NK cells of the CD56^dim, CD16⁺ subset that account for more that 85% of NK cells found in peripheral blood and spleen (4). NKp30 is absent from the CD56^bright, CD16^- subset that constitutes the majority of NK cells in lymph node and tonsil, however, its expression is up-regulated in these cells upon IL-2 activation (4). Studies with neutralizing antibodies reveal that NKp30 is partially responsible for triggering lytic activity against several tumor cell types and that it is the main receptor responsible for NK-mediated lysis of immature dendritic cells (2, 5). The ligand(s) recognized by NKp30 has not been described.

References

Moretta, L. and A. Moretta (2004) EMBO J. 23:255.
Pende, D. et al. (1999) J. Exp. Med. 190:1505.
Augugliaro, R. et al. (2003) Eur. J. Immunol. 33:1235.
Ferlazzo, G. et al. (2004) J. Immunol. 172:1455.
Ferlazzo, G. et al. (2002) J. Exp. Med. 195:343.

Alternate Names

CD337, NCR3

Entrez Gene IDs

259197 (Human); 294251 (Rat); 102133932 (Cynomolgus Monkey)

Gene Symbol

NCR3

UniProt

Q05D23

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Product Specific Notices for Human NKp30/NCR3 Alexa Fluor® 700-conjugated Antibody

This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

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Human NKp30/NCR3 Alexa Fluor® 700-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # FAB18492N

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Background: NKp30/NCR3