免疫沉淀
大肠杆菌
污渍
化学
计算生物学
细菌
质谱法
蛋白质-蛋白质相互作用
亲和层析
鉴定(生物学)
细菌蛋白
生物化学
细胞生物学
生物
组合化学
色谱法
遗传学
基因
酶
植物
作者
Alessandra M. Martorana,Carlo Santambrogio,Alessandra Polissi
出处
期刊:Methods in molecular biology
日期:2022-01-01
卷期号:: 129-144
标识
DOI:10.1007/978-1-0716-2581-1_9
摘要
AbstractMultiprotein complexes are important machineries that organize a large number of different proteins into functional units. Studying protein-protein interactions in the complexes, rather than individual proteins, is a fundamental step to gaining functional insights into a biological process. Here, we present the sequential affinity purification and coimmunoprecipitation system that was applied to enable the efficient purification of all the proteins that compose the Lpt system complex in Escherichia coli and their identification by western blotting and mass spectrometry (MS).Key wordsLipopolysaccharide transportProtein complexMass spectrometryAffinity purificationCoimmunoprecipitationLpt system
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