PathScan? Total FGFR2 Sandwich ELISA Kit

• 产品编号：CST-7939C      品牌：CST       原厂货号：7939C
• 产品分类：ELISA及其它免疫分析 > ELISA > ELISA检测试剂盒
• 应用分类：

其它组分：

描述：

CST公司的PathScan® Total FGFR2夹心法ELISA试剂盒#7939用于检测人细胞中内源FGFR2蛋白的表达（如图１）。图2显示试剂盒的灵敏度。本试剂盒不与其它ErbB家族的蛋白发生交叉反应（数据未显示）。内部检测显示，本试剂盒能检测列举出的物种蛋白，但不排除用于其它物种同源蛋白检测的可能。CST公司的PathScan® Total FGFR2 Sandwich ELISA Kit利用固相双抗夹心酶联免疫检测法对内源性FGFR2的表达进行检测。微孔中已经包被了抗体FGFR2兔抗体，与细胞裂解液共孵育后，磷酸化的和未磷酸化的FGFR2蛋白均能被包被抗体捕获。多次洗板之后，加入FGFR2 鼠检测抗体对被捕获的FGFR2蛋白进行检测，然后加入抗鼠IgG, HRP偶联抗体对检测抗体进行识别，最后加入HRP的底物TMB进行显色反应。按照相对光单位，发射光强度与总FGFR2的量成正比。成纤维细胞生长因子 (FGFs)通过细胞表面的酪氨酸激酶受体传递信号，对靶细胞产生促有丝分裂和血管生成的效应。已知FGF受体家族有四个成员：FGFR-1 (flg), FGFR-2 (bek, KGFR), FGFR-3和FGFR-4。每个受体都有一个胞外配体结合区、跨膜区和一个胞内激酶区（1）。在结合配体和二聚化之后，受体的特定的酪氨酸位点发生磷酸化（2）。在FGFR-1的羧基端有7个酪氨酸位点能被磷酸化：Tyr463, 583, 585, 653, 654, 730和 766。Tyr653 和Tyr654对激活的FGFR的催化活性十分重要，对信号传导也是必要的(3)。其它的磷酸化酪氨酸位点能够为下游信号分子，如Crk 和PLCγ，提供结合位点(4,5)。

1. Powers, C.J. et al. (2000) Endocr Relat Cancer 7, 165-97.
2. Reilly, J.F. et al. (2000) J Biol Chem 275, 7771-8.
3. Mohammadi, M. et al. (1996) Mol Cell Biol 16, 977-89.
4. Mohammadi, M. et al. (1991) Mol Cell Biol 11, 5068-78.
5. Larsson, H. et al. (1999) J Biol Chem 274, 25726-34.

原厂资料：

Specificity / Sensitivity

PathScan® Total FGFR2 Sandwich ELISA Kit #7939 detects endogenous levels of FGFR2 protein in human cells, as shown in Figure 1. The kit sensitivity is shown in Figure 2. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

Description

The PathScan® Total FGFR2 Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of FGFR2 protein. An FGFR2 rabbit antibody has been coated on the microwells. After incubation with cell lysates, FGFR2 protein (phospho and nonphospho) is captured by the coated antibody. Following extensive washing, a FGFR2 mouse detection antibody is added to detect captured FGFR2 protein. Anti-mouse IgG, HRP-linked antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of the absorbance for this developed color is proportional to the quantity of total FGFR2 protein.

Background

Fibroblast growth factors (FGFs) produce mitogenic and angiogenic effects in target cells by signaling through cell surface receptor tyrosine kinases. There are four members of the FGF receptor family: FGFR-1 (flg), FGFR-2 (bek, KGFR), FGFR-3, and FGFR-4. Each receptor contains an extracellular ligand binding domain, a transmembrane domain, and a cytoplasmic kinase domain (1). Following ligand binding and dimerization, the receptors are phosphorylated at specific tyrosine residues (2). Seven tyrosine residues in the cytoplasmic tail of FGFR-1 can be phosphorylated: Tyr463, 583, 585, 653, 654, 730, and 766. Tyr653 and Tyr654 are important for catalytic activity of activated FGFR and are essential for signaling (3). The other phosphorylated tyrosine residues may provide docking sites for downstream signaling components such as Crk and PLCγ (4,5).

1. Powers, C.J. et al. (2000) Endocr Relat Cancer 7, 165-97.
2. Reilly, J.F. et al. (2000) J Biol Chem 275, 7771-8.
3. Mohammadi, M. et al. (1996) Mol Cell Biol 16, 977-89.
4. Mohammadi, M. et al. (1991) Mol Cell Biol 11, 5068-78.
5. Larsson, H. et al. (1999) J Biol Chem 274, 25726-34.

注意事项：

* 12 8-well modules -Each module is designed to break apart for 8 tests.
**Kit should be stored at 4°C with the exception of 10X Cell Lysis Buffer, which is stored at –20°C (packaged separately).