中文摘要：

目的：制备新型半胱氨酰白三烯受体GPR17的多克隆抗体（pAb），并鉴定其免疫学特性。方法：以KLH偶联的GPR17多肽免疫家兔制备其pAb，用间接ELISA法测定抗体效价，阻断ELISA测定抗体敏感性及特异性，同时以新制备的抗体做Westernblot，检测GPR17的组织表达。结果：通过免疫家兔获得的抗GPR17pAb，ELISA测定显示其抗体效价最高可达到1／16364，并对CysLT1受体和CysLT2受体基本无交叉反应，具有较好的特异性。Westernblot结果显示，GPR17在大鼠脑和心脏组织中有较高的表达，其分子量在43kD左右。结论：制备的GPR17pAb具有较高的效价和较好的特异性，能满足Westernblot检测GPR17的要求。

英文摘要：

Objective： To prepare and identify a polyclonal antibody （pAb） against GPR17,a novel cysteinyl leukotriene receptor. Methods： Rabbits were immunized with KLH-coupled GPR17 peptide to prepare the pAb. The titer of the pAb in rabbit plasma was detected by indirect ELISA,and the specificity of the pAb was tested by antigen blockade. GPR17 tissue distribution was detected by Western blot with the pAb. Results： The pAb showed a titer as high as 1 ： 16 364,and was not cross-reacted with the antigens of CysLT1 and CysLT2 receptors. A higher expression of GPR17 in the rat brain and heart was detected using the newly prepared pAb. The molecular weigh of GPR17 protein was about 43 kD. Conclusion： The prepared GPR17 pAb has high sensitivity and specificity,and can be used in Western blot for detecting GPR17.