YZ-2蛋白的生物信息学分析及其多克隆抗体制备

Bioinformatics analysis of YZ-2 and preparation of polyclonal antibody

目的:生物信息学分析与脑缺氧密切相关的新蛋白质YZ-2,以及制备其多克隆抗体。方法:根据生物信息学分析预测出YZ-2蛋白质的二级结构、亲水性、抗原性等理化特性,以这些分析预测为依据,经过同源性检索后设计出一段由22个氨基酸组成的多肽,免疫家兔得到多克隆抗体,并用ELISA、Westernblot等方法鉴定其特异性和滴度。结果:①成功分析预测其抗原性和亲水性;②制备了抗YZ-2蛋白多克隆抗体;③以此多克隆抗体经酶联免疫吸附测定、蛋白质印迹,检测YZ-2蛋白的表达,证实此抗体效价较高、特异性强。结论:利用生物信息学较好地预测出YZ-2的亲水性和抗原性,并成功制备了其较高特异性的多克隆抗体。

AIM： To analyze YZ-2, a novel protein associated with cerebral ischemia and prepares its polyclonal antibody. METHODS： According to the bioinformatics analysis and prediction of the possible high structure, hydrophilicity and antigenicity of YZ-2, a 22-amino acid residue partial peptide of YZ-2 was synthesized. The synthesized peptide was then used to immunize. And the properties of antiYZ2 were analyzed by ELISA and Western blot. RESULTS： The hydrophilicity and antigenicity were predicted by methods of bioinformatics. The polyclonal antibody of YZ-2 was successfully obtained and its specificity and sensitivity were conformed by ELISA and Western blot. CONCLUSION： By the bioinformatics analysis and prediction, the hydrophilicity and antigenicity of YZ2 were analyzed. The antibody of YZ- 2 was successfully obtained.