Abbexa/14-100 kDa Protein Marker/250 µl Quick dispatch
商品编号:
abx098116-250µl
品牌:
Abbexa Ltd
市场价:
¥0.00
美元价:
0.00
联系Q Q:
3392242852
电话号码:
4000-520-616
电子邮箱:
info@ebiomall.com
商品介绍
14-100 kDa Protein Marker. Protein Marker is composed of seven pre-stained proteins ranging from 14 kDa to 100 kDa. The protein corresponding to the 50 kDa band is covalently coupled to an orange dye. The protein corresponding to the 14 kDa band is covalently coupled to a yellow dye. The other five proteins are covalently coupled to a blue dye. After SDS-PAGE and transferred to PVDF or NC membrane, clear colored protein bands are visible: five blue bands, one orange band and one yellow band. This product is in a ready-to-use format and can be added directly onto gels with no heating required.
Research Articles on 14-100 kDa Protein Marker
Target | 14-100 kDa Protein Marker |
Storage | Store at -20°C. Stable for up to 2 years from date of receipt. |
Molecular Weight | 14-100 kDa |
Buffer | 100 mM Tris-HCl (pH 6.8), 5 mM EDTA, 10 mM DTT, 10% glycerol, 1% SDS, 0.01% phenol red. |
Concentration | Approximately 2 µg/5 µl for each band |
Directions for use | Mix well before use. Use 5 µl/well for small gels or 10 µl/well for larger gels. Suggested Electrophoresis Conditions:Carry out electrophoresis at 200 V for 50 minutes, then transfer to membrane at 200 mA for 3 hours. |
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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