Structural and Biochemical Insight into the Mechanism of Rv2837c from Mycobacterium tuberculosis as a c-di-NMP Phosphodiesterase
2016-02-12
发表期刊JOURNAL OF BIOLOGICAL CHEMISTRY
ISSN0021-9258
卷号291期号:7页码:3668-3681
发表状态已发表
DOI10.1074/jbc.M115.699801
摘要The intracellular infections of Mycobacterium tuberculosis, which is the causative agent of tuberculosis, are regulated by many cyclic dinucleotide signaling. Rv2837c from M. tuberculosis is a soluble, stand-alone DHH-DHHA1 domain phosphodiesterase that down-regulates c-di-AMP through catalytic degradation and plays an important role in M. tuberculosis infections. Here, we report the crystal structure of Rv2837c (2.0 angstrom), and its complex with hydrolysis intermediate 5-pApA (2.35 angstrom). Our structures indicate that both DHH and DHHA1 domains are essential for c-di-AMP degradation. Further structural analysis shows that Rv2837c does not distinguish adenine from guanine, which explains why Rv2837c hydrolyzes all linear dinucleotides with almost the same efficiency. We observed that Rv2837c degraded other c-di-NMPs at a lower rate than it did on c-di-AMP. Nevertheless, our data also showed that Rv2837c significantly decreases concentrations of both c-di-AMP and c-di-GMP in vivo. Our results suggest that beside its major role in c-di-AMP degradation Rv2837c could also regulate c-di-GMP signaling pathways in bacterial cell.
关键词cyclic diadenosine monophosphate (c-di-AMP) enzyme degradation Mycobacterium tuberculosis phosphodiesterases structure-function
收录类别SCI ; EI
语种英语
资助项目Zhejiang Natural Science Foundation[LR12C05001]
WOS研究方向Biochemistry & Molecular Biology
WOS类目Biochemistry & Molecular Biology
WOS记录号WOS:000370854500044
出版者AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC
EI入藏号20161802327247
EI主题词Crystal structure ; Esters ; Tubes (components)
EI分类号Biomedical Engineering:461.1 ; Pipe, Piping and Pipelines:619.1 ; Organic Compounds:804.1 ; Crystal Lattice:933.1.1
WOS关键词AFFECT BACTERIAL-GROWTH ; LONG-TERM SURVIVAL ; AMP PHOSPHODIESTERASE ; GMP ; IDENTIFICATION ; SPORULATION ; RESOLUTION ; REVEALS ; PROTEIN ; LEADS
原始文献类型Article
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1924
专题生命科学与技术学院_PI研究组_廖军组
通讯作者Gu, Lichuan
作者单位
1.Shandong Univ, Sch Life Sci, State Key Lab Microbial Technol, Jinan 250100, Shandong, Peoples R China
2.Tsinghua Univ, Yangtze Delta Reg Inst, Dept Biotechnol & Biomed, Jiaxing 314006, Zhejiang, Peoples R China
3.ShanghaiTech Univ, Sch Life Sci & Technol, Shanghai 200031, Peoples R China
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GB/T 7714
He, Qing,Wang, Feng,Liu, Shiheng,et al. Structural and Biochemical Insight into the Mechanism of Rv2837c from Mycobacterium tuberculosis as a c-di-NMP Phosphodiesterase[J]. JOURNAL OF BIOLOGICAL CHEMISTRY,2016,291(7):3668-3681.
APA He, Qing.,Wang, Feng.,Liu, Shiheng.,Zhu, Deyu.,Cong, Hengjiang.,...&Gu, Lichuan.(2016).Structural and Biochemical Insight into the Mechanism of Rv2837c from Mycobacterium tuberculosis as a c-di-NMP Phosphodiesterase.JOURNAL OF BIOLOGICAL CHEMISTRY,291(7),3668-3681.
MLA He, Qing,et al."Structural and Biochemical Insight into the Mechanism of Rv2837c from Mycobacterium tuberculosis as a c-di-NMP Phosphodiesterase".JOURNAL OF BIOLOGICAL CHEMISTRY 291.7(2016):3668-3681.
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