Universal stress protein Rv2624c alters abundance of arginine and enhances intracellular survival by ATP binding in mycobacteria----中国科学院微生物研究所

科研成果

论文题目:	Universal stress protein Rv2624c alters abundance of arginine and enhances intracellular survival by ATP binding in mycobacteria
作者:	Jia, Qiong Hu, Xinling Shi, Dawei Zhang, Yan Sun, Meihao Wang, Jianwei Mi, Kaixia Zhu, Guofeng
联系作者:	Mi, Kaixia* Zhu, Guofeng*
刊物名称:	Scientific Reports
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年份:	2016
影响因子:	5.525
论文下载:	http://www.nature.com/articles/srep35462
摘要:	The universal stress protein family is a family of stress-induced proteins. Universal stress proteins affect latency and antibiotic resistance in mycobacteria. Here, we showed that Mycobacterium smegmatis overexpressing M. tuberculosis universal stress protein Rv2624c exhibits increased survival in human monocyte THP-1 cells. Transcriptome analysis suggested that Rv2624c affects histidine metabolism, and arginine and proline metabolism. LC-MS/MS analysis showed that Rv2624c affects the abundance of arginine, a modulator of both mycobacteria and infected THP-1 cells. Biochemical analysis showed that Rv2624c is a nucleotide-binding universal stress protein, and an Rv2624c mutant incapable of binding ATP abrogated the growth advantage in THP-1 cells. Rv2624c may therefore modulate metabolic pathways in an ATP-dependent manner, changing the abundance of arginine and thus increasing survival in THP-1 cells.