文献类型：期刊文献

英文题名：Differential quantitative proteomics reveals the functional difference of two yigP locus products, UbiJ and EsrE

作者：Tang, Qiongwei[1];Feng, Meilin[1];Xia, Hui[1];Zhao, Yiming[1];Hou, Bingbing[1];Ye, Jiang[1];Wu, Haizhen[1,2];Zhang, Huizhan[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Dept Appl Biol, 130 Meilong Rd, Shanghai, Peoples R China

年份：2019

卷号：59

期号：11

起止页码：1125

外文期刊名：JOURNAL OF BASIC MICROBIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000493785600006)】；

语种：英文

外文关键词：antibiotic resistance; EsrE; JM83; proteome; UbiJ

摘要：The yigP (ubiJ) locus has been shown to be associated with many phenotypic changes in Escherichia coli, while the individual function of its two products, EsrE small RNA and UbiJ protein, is still elusive. In this study, we constructed two single-element mutants, EsrE mutant strain Mut and UbiJ mutant strain Ter, on the basis of the base substitution programs. The variable antibiotics resistance and ubiquinone (UQ, coenzyme Q) yield and the similar cell growth between mutants revealed the division of labor and collaboration of EsrE and UbiJ in JM83. Furthermore, we detected the concentration of intracellular proteins of Mut and Ter by stable isotope-labeled quantitative proteomics. The results demonstrate that both EsrE and UbiJ are involved in the aerobic growth of E. coli, while EsrE preferentially contributes to the amino acid-related pathway, and UbiJ is an indispensable factor in the biosynthesis of UQ. Moreover, we uncovered a potential regulatory circuit of d-cycloserine (DCS) that composed of EsrE, GcvA, and GcvB by proteomic analysis.