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Recombinant Human Natural Cytotoxicity Receptor NKp46
Recombinant Human Natural Cytotoxicity Receptor NKp46
- 中文名称：
- Recombinant Human Natural Cytotoxicity Receptor NKp46
- 英文名称：
- Recombinant Human Natural Cytotoxicity Receptor NKp46
- 品牌：
- AAA Biotech
- 品牌介绍：
- AAA Biotech专注于为全球生命科学研究提供高品质的蛋白质研究工具，核心产品包括经严格验证的抗体、重组蛋白及ELISA试剂盒。
- 货号：
- AAA38489
- 规格：
- 0.005 mg|0.02 mg|1 mg|2x1 mg|3x1 mg
- 保存建议：
- Store at 4 degree C if entire vial will be used within 2-4 weeks. Store, frozen at -20 degree C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
- 货期：
- 6-8周
- 纯度：
- Greater than 95.0% as determined by SDS-PAGE.
- 产品形式：
- The protein contains phosphate buffered saline (pH7.4) & 1mM EDTA.
Sterile filtered colorless solution.
- 免责声明：
- *本产品仅供科研实验使用，不得用于临床诊断。*
- 说明书：
Description: NKp46 Human Recombinant produced in E Coli is a single, non-glycosylated polypeptide chain containing 235 amino acids and having a molecular mass of 26.6 kDa.
Introduction: A natural cytotoxicity receptor (NCR) NKp46 has been shown to represent a novel NK cell-specific molecule involved in human NK cell activation. The natural cytotoxicity receptors (NCRs) are a recently characterized family of Ig-like activation receptors that appear to be major triggering receptors in tumor cell recognition. The three known NCRs include NKp46 and NKp30, which are expressed on circulating NKcells, and NKp44, which is expressed only on activating NK cells. NKp46 has been implicated in NK cell-mediated lysis of several autologous tumor cells, pathogen-infected cell lines and mononuclear phagocytes infected with an intracellular bacterium. The Lysis of tumor cells by NK-cells involves recognition by NKp46 of heparan sulfate moieties of membrane heparan sulfate proteoglycans. Furthermore, NKp46 is a surface receptor involved in NK-cell cell death by apoptosis. NKp46 has two extracellular Ig-like domains followed by a ~40 residue stalk region, a type I transmembrane domain, and a short cytoplasmic tail. The extracellular Ig-like domain of NKp46 (22-255aa) is purified by FPLC gel-filtration chromatography, after refolding of the isolated inclusion bodies in a redox buffer. In addition, engagement of the antigen with the monoclonal antibody stimulates intracellular calcium levels and the synthesis of cytokines. CD59 is an NKp46 coreceptor (by physical association) together they activate cytotoxicity of human NK-cells, their engagement results in tyrosine phosphorylation of CD3-zeta chains associated with NKp46. Reduced cell surface expression of NKp46 and other NK-cell receptors is linked to the impaired NK-cell cytolytic function in viremic HIV-1 infection.
