
- SynonymNCR3,CD337,NKp30,1C7,LY117,MALS
- SourceHuman NKp30, Fc Tag (NC3-H5259) is expressed from human 293 cells (HEK293). It contains AA Leu 19 - Gly 135 (Accession # AAH52582).Predicted N-terminus: Leu 19Request for sequence
- Molecular Characterization
This protein carries a human IgG1 Fc tag at the C-terminus.
The protein has a calculated MW of 39.5 kDa. The protein migrates as 50-58 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
- EndotoxinLess than 1.0 EU per μg by the LAL method.
- Purity
>95% as determined by SDS-PAGE.
- Formulation
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
- Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
- Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.

Human NKp30, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

Immobilized Human B7-H6, His Tag (Cat. No. B76-H52H8) at 10 μg/mL (100 μL/well) can bind Human NKp30, Fc Tag (Cat. No. NC3-H5259) with a linear range of 2-78 ng/mL (QC tested).
- BackgroundNatural cytotoxicity triggering receptor 3 (NCR3) is also known as Activating natural killer receptor p30, Natural killer cell p30-related protein (NK-p30), CD antigen CD337, 1C7, LY117. NCR3 /CD337 /NKp30 belongs to the natural cytotoxicity receptor (NCR) family. NCR3 /NKp30 contains one Ig-like (immunoglobulin-like) domain. NCR3 /NKp30 is selectively expressed by all resting and activated NK cells and weakly expressed in spleen. NCR3 is homodimer in the unliganted form. NCR3 interacts with CD3Z. NCR3 interacts with and is activated by binding to NCR3LG1 or BAG6. Engagement of NCR3 by BAG6 also promotes dendritic cell (DC) maturation, both through killing those DCs that did not properly acquire a mature phenotype, and inducing NK cells to release TNFA and IFNG, which promotes DC maturation.
- References
- (1)Pende D., et al., 1999, J. Exp. Med. 190:1505-1516.
- (2)Vitale M., et al., 2005, Blood 106:566-571.
- (3)Simhadri V.R., et al., 2008, PLoS ONE 3:E3377-E3377.
Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.
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1,IgG抗体是抗体中分子量最小的一种,可通过胎盘输给胎儿,保护了婴儿最初六个月内免受感染。该抗体产生晚,维持时间长,消失慢,浓度高。血中检测到可作为远期感染指标。
2,IgM抗体是抗体中分子量最大的一种,不能通过胎盘输给胎儿。抗体产生最早,一经感染,快速产生,在感染初期抗感染起作用。但维持时间短,消失快。
3,灵长类动物主要有四种免疫球蛋白IgG、IgM、IgA、和IgE。
所有用于检测抗原的免疫学方法经适当改良后,均可用于抗体的检测,如IFA、ELISA、RIA、LA......由于抗原方法的敏感性提高和PCR技术的应用,使得HSV抗体在HSV感染个体中的不均一性和不稳定性影响了这类指标在临床诊断中的意义,但作为一种感染有关指标,在一定的范围和情况下,仍有必要进行检测和深入研究.目前HSV特异性抗体的检测,主要有IgG、IgM和IgA三种。
本试验根据《中国药典》2015年版紫外分光光度法吸收系数法进行制定,本试验方法采用的方法学验证内容如下:
1.线性及范围
取IgG标准品配制5个不同浓度被测样品,并进行测定,绘制标准曲线,得到回归方程及范围。
2.准确度
已回收率对准确度进行验证。以已知含量的IgG标准品配制供试品,配制三个浓度,每个浓度平均测定三次。计算回收率。
3.精密度
IgG标准品配制供试品,平行测定六次。
4.溶液稳定性试验
至少持续2h的溶液稳定性考察。
5.干扰试验
空白溶液中加入辅料,在280nm处测定吸收,确定辅料是否对样品的吸收造成干扰。
以上,请大神指正。
补充问题,在专属性验证上,仅做辅料干扰是不是太少了?是否再进行强降解实验呢?因为其中包含了蛋白质A、外源性DNA及宿主细胞蛋白残留。我是否应该针对这三种杂质进行专属性试验?该如何进行呢?
2-IgM也是一种特异性感染指标,但在人体内持续时间不长(有时是30天更短),往往是传染病的近期感染指标。呈阴性是指:你近期没有感染过结核杆菌。

