A method of detection separation and identification for expressed trace protein/peptide; and a system therefor. There is provided a method of detecting, separating and identifying a minute amount of expressed protein and/or peptide, characterized in that a fluorescent derivative of protein and/or peptide contained in a test subject sample having been labeled with a fluorescence reagent is applied to HPLC; a fluorescent fraction is collected and subjected to enzymatic hydrolysis; mass-spectrometry of the resultant fluorescence-labeled fragments and non-fluorescence-labeled fragments is carried out; and the thus obtained ion molecular weight information on each of the fragments is collated with an available protein and/or peptide fragment database to thereby accomplish a structural analysis. Further, there is provided an identification system therefor.
一种用于检测、分离和鉴定表达微量蛋白质/肽的方法;以及用于该方法的系统。提供了一种检测、分离和鉴定微量表达蛋白质和/或肽的方法,其特征在于将标记有荧光试剂的蛋白质和/或肽的荧光衍
生物应用于高效
液相色谱(HPLC);收集荧光分离物并进行酶解
水解;质谱分析所得的荧光标记片段和非荧光标记片段;然后将每个片段的离子分子量信息与可用的蛋白质和/或肽片段数据库进行匹配,以完成结构分析。此外,还提供了一个鉴定系统。