组织细胞内瓜氨酸化蛋白的鉴定方法

摘要

瓜氨酸化是指精氨酸在钙离子存在的情况下,由肽酰基精氨酸脱亚胺酶介导引起的一种翻译后修饰.蛋白质瓜氨酸化修饰的上调参与体内多种疾病的发病机制,并具有重要的病理生理学意义.组织细胞中瓜氨酸化位点的鉴定依然迫切需要多种具有更高敏感性和特异性的定量和高通量的检测方法,随着化学衍生技术和质谱技术的发展,新的快速精准的蛋白质组学技术依然具有较好的发展和应用前景.文章主要通过介绍显色剂分析、免疫识别、质谱分析等多种瓜氨酸化多肽的检测方法,以期为复杂生物样本中瓜氨酸位点的鉴定提供新的思路和方向.%Citrullination is a post-translational modification of arginine caused by peptidyl arginine deiminase in the presence of calcium ions.Up-regulation of citrullination plays a significant role in the progress of numerous disorders,and it has important physiologic and pathological significance.High-throughput and quantitative methods with high specificity and sensitivity are still needed to identify the citrullinated sites in tissue cells.With the development of chemical derivatization and mass spectrometry, new rapid and accurate proteomics technology still has a good prospect of development and application.This article aimed to provide new ideas and directions to identify the citrullinated sites in the complex biological samples by introducing strategies available to identify citrullinated peptides, such as color development reagent analysis, immunodetection and mass spectrometry.