Abbexa/10-180 kDa Protein Marker/500 µl/abx299708-500 µl
商品编号:
abx299708-500µl
品牌:
Abbexa Ltd
市场价:
¥6090.00
美元价:
6090.00
产品分类:
细菌抗原
公司分类:
Bacterial_antigen
联系Q Q:
3392242852
电话号码:
4000-520-616
电子邮箱:
info@ebiomall.com
商品介绍
10-180 kDa Protein Marker contains 10 prestained proteins ranging from 10 to 180 kDa. The 25 kDa protein is covalently coupled to a red dye and the 75 kDa protein is covalently coupled to a green dye. The other 8 proteins are covalently coupled to a blue dye. Coloured protein bands can be seen in SDS-PAGE after transferring to a PDVF, nylon or nitrocellulose membrane.
Research Articles on 10-180 kDa Protein Marker
Target | 10-180 kDa Protein Marker |
Tested Applications | SDS-PAGE, WB |
Storage | Store at 4 °C for up to 3 months. For long-term storage, store at -20 °C. Avoid repeated freeze/thaw cycles. |
Buffer | 20 mM Tris-phosphate, pH 7.5, 2% SDS, 0.2 mM DTT, 3.6 M Urea, and 15% Glycerol. |
Directions for use | 3 µl/well for clear visualisation during electrophoresis on a 15-well mini-gel5 µl/well for clear visualisation during electrophoresis on a 10-well mini-gel2-3 µl/well for general Western transferring Increase the volume for thicker (> 1.5 mm) or larger gels. Do not heat, dilute or add reducing agents before loading. |
Availability | Shipped within 5-10 working days. |
Note | This product is for research use only. |
品牌介绍
Isotype Control
同型对照
同型对照(Isotype Control),使用与一抗相同种属来源、相同亚型、相同剂量和相同的免疫球蛋白及亚型的免疫球蛋白,用于消除由于抗体非特异性结合到细胞表面而产生的背景染色。
同型对照
同型对照的主要目的是确定一抗的结合是特异性的,而不是非特异性的Fc受体或与其他蛋白的相互作用。还可以用来竞争性的结合抗体,与功能阻断抗体发挥同样的功能。
同型对照要与一抗的来源,Ig分型和标记完全一致。
如果一抗是多抗,可以用an normal serum(与一抗相同的正常血清) (must be the same
species as primary antibody)。This control is
easy to achieve and can be used routinely in immunohistochemical staining.这个可以咨询试剂商。同型对照为免疫荧光标记中的阴性对照。由于荧光标记单抗的组来源不同,应选用相同来源的未标记单抗作为同型对照来 调整背景染色。举个例子:比如检测一抗为单抗的mouse anti rat
CD11b,clone OX-42 purified IgG,那么它的isotype 是mouse IgG2a, 所以可以用purified(纯化的) mouse IgG2a来做OX-42的同型对照(Isotype Control)。一般的的生物技术公司和国内的代理都有出售。
同型对照:是指与MoAb相同的、未免疫小鼠的免疫球蛋白亚类,若使用直接免疫荧光染色法,同型对照也应标记荧光色素,如IgG1 FITC、IgG2a、PE等。主要考虑了细胞的自发荧光、FC受体介导的抗体结合和非特异性抗体结合等影响因素。此外,同型对照与MoAb所标记的荧光 色素、浓度、F:P比值(标记的荧光色素与免疫球蛋白分子的比值)应该相同为最佳,这对准确设定阴性与阳性细胞的界标有重要意义,切忌使用与MoAb不相 匹配的同型对照,最好为同一实验室、采用相同工艺或方法制备(如同一品牌)的产品。
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