
The human B cell activating factor (BAFF) and APRIL(a proliferation inducing ligand) are both type II molecules belonging to the TNF superfamily. They are expressed by non-B cells, and are down-regulated by mitogenic stimulation.2 BAFF and APRIL bind to at least two receptors: TACI (transmembrane activator and CAML-interactor) and BCMA (B cell maturation antigen), both of which are restricted to B cells.3,4 Ligation of these receptors with recombinant BAFF dramatically increases IgM production by peripheral blood B cells 1. Cell surface BAFF can be cleaved to form a soluble trimeric molecule.2
Molecular Structure: A soluble molecule consisting of 151 (VQGPEET…c-term) aminoacids of the extracellular domain of human BAFF fused to the extracellular domain (167aa) of murine CD8 alpha, with a predicted monomeric weight of 38.5 kd. A portion of the extracellular region of BAFF was truncated to amino acid 135 to eliminate a potential protease cleavage site.
Transfectant Cell Line: CHO BAFF(trn)-muCD8 binds to human cell surface TACI/BCMA/BAFFR (8, 9) .
Functional Application: Human BAFF(trn)-muCD8 binds to human cell surface TACI/BCMA (8, 9).
References:
1) Schneider P., J. Tschopp, et al. J. Exp. Med. 1999, 189(11):1747-1756.
2) Shu, H.B., H. Johnson, W.H. Hui. J Leukoc Biol 1999, 65:680-683.
3) Marsters, S.A., A. Ashkenazi, et al. 2000, Curr Biol 10:785-788.
4) Xia, X., H. Hsu, et al. 2000, J Exp Med, 192(1): 137-143.
5) Thompson J.S., C. Ambrose, et al. Science 2001, 293: 2108-2111.
6) Roschke, V, T.S. Migone, et al. J Immunol. 2002, 169: 4314-4321.
7) MacLennan, C.M., C.G. Vinuesa, 2002, Immunity 17:235-238.
8) Landau DA, P Cacoub, et al. (2009) Ann Rheum Dis 68(3): 337-44. PMID: 18434450.
9) Moreaux J, K Tarte, et al. (2004) Blood 103:3148-3157. PMID: 15070697.
10. EY Moon, S Lee, et al. (2011) Intl Immunopharmacol 11(10): 1523-1533. https://doi.org/10.1016/j.intimp.2011.05.009
ebiomall.com






>
>
>
>
>
>
>
>
>
>
>
可是说明书找不到了,按了上面的键似乎没法自己设程序,只有原先的一些预设程序。
还有,那些溶液是不是可以通用的啊,有没有配方啊。。。
我是新手。。。
有知道的麻烦告诉我下,很感谢哈
其次检测电源是否正常。
最后检测冲孔精度是否正常,采样图标,然后冲孔,测量冲孔数据,与设置数据对比,以判断是否正常。
洗板机洗板是将手工操作改由洗板机进行,人为因素少,速度快,条件恒定,但是使用洗板机洗板的一个特点是,每次洗板后不能拍干,故有较多的液体残留,需增加洗板次数来减少这种误差。洗板机洗板次数越少,假阳性越高,本实验中,洗板1次,假阳性率高达90%;洗板2次,假阳性率为38%;洗板3次,假阳性率为2%;洗板4~5次,未出现假阳性。洗板次数并非越多越好,太多不但浪费人力、物力,并且也会导致假阴性结果,所以一般试剂盒要求洗板4~5次即可。洗板机洗板时应经常检查冲洗头是否通畅,若被杂物堵塞时可用注射器针头挑出。为了洗涤效果较好,实验室可采用机器与人工洗涤相结合的方法,在机器洗涤后再进行人工洗板1~2次,能达到理想的洗涤效果。
综上所述,在ELISA快速法检验中,手工法洗板和洗板机洗板没有本质的差别,只要操作合乎要求,均能得到正确、可靠的结果。展开

