METHOD OF DETECTION, SEPARATION AND IDENTIFICATION FOR EXPRESSED TRACE PROTEIN/PEPTIDE
申请人:Imai, Kazuhiro
公开号:EP1705482A2
公开(公告)日:2006-09-27
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.
一种检测、分离和鉴定表达的微量蛋白质/肽的方法及其系统。本发明提供了一种检测、分离和鉴定微量表达蛋白和/或肽的方法,其特征在于:将检测对象样品中含有的用荧光试剂标记的蛋白和/或肽的荧光衍生物应用于高效液相色谱法;收集荧光馏分并进行酶水解;对由此产生的荧光标记片段和非荧光标记片段进行质谱分析;将由此获得的每个片段的离子分子量信息与现有的蛋白质和/或肽片段数据库进行核对,从而完成结构分析。此外,还为此提供了一种识别系统。