Goat Anti-Rabbit IgG F(ab')2(peroxidase/HRP conjugated)

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- 宿主: Goat
- 应用性: WB;IHC;ELISA
Source | Goat |
Immunogen | Rabbit IgG |
Application | WB, IHC, ELISA |
Recommended Dilution | WB 1:8000-15000 (Enhanced chemiluminescent detection) WB 1:1000-5000(DAB detection) Direct ELISA 1:4000-8000(TMB detection) IHC 1:400-4000(DAB detection) |
Concentration | 0.3 mg/mL |
Clonality | Polyclonal |
Purification | Affinity purification |
Conjugation | HRP |
Storage Instructions | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
Storage Buffer | PBS with 0.1% PC300, 1% protective protein and 50% glycerol, pH 7.4 |
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Q1:该如何选择二抗?
二抗根据一抗的来源和客户的实验需求来选择。
先看实验所用一抗的种属来源和亚型。根据一抗种属来源和亚型来决定二抗:如一抗是兔来源的IgG,那就选抗兔IgG的二抗,例如Goat Anti-Rabbit IgG;如一抗是小鼠来源的IgM,那就选抗小鼠IgM的二抗,例如Goat Anti-Mouse IgM。
标记物的选择。常见的标记物有有HRP、Biotin、荧光素等。
ELISA常用Biotin标记的二抗,后接一个链霉亲和素标记的HRP起到进一步信号放大作用,用TMB底物显色;
WB主要选择HRP标记的二抗,用ECL底物发光液显色;
IHC一般也是选择HRP标记的二抗,推荐使用免疫组化试剂盒(E-IR-R217或最新的E-IR-R220/221),一般用DAB底物液显色;
IF可按实验需要选择不同荧光素标记的二抗,如FITC、Cy3、PE等均可(尽量避开细胞的自发荧光),通过荧光显微镜检测荧光。