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Katayama N, Osanai T. Arginine inhibition of the argininosuccinate lyases is conserved among three orders in cyanobacteria. PLANT MOLECULAR BIOLOGY 2022; 110:13-22. [PMID: 35583703 DOI: 10.1007/s11103-022-01280-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/24/2022] [Indexed: 06/15/2023]
Abstract
This study revealed different catalytic efficiencies of cyanobacterial argininosuccinate lyases in non-nitrogen-fixing and nitrogen-fixing cyanobacteria, demonstrating that L-arginine inhibition of L-argininosuccinate lyase is conserved among enzymes of three cyanobacterial orders. Arginine is a nitrogen-rich amino acid that uses a nitrogen reservoir, and its biosynthesis is strictly controlled by feedback inhibition. Argininosuccinate lyase (EC 4.3.2.1) is the final enzyme in arginine biosynthesis that catalyzes the conversion of argininosuccinate to L-arginine and fumarate. Cyanobacteria synthesize intracellular cyanophycin, which is a nitrogen reservoir composed of aspartate and arginine. Arginine is an important source of nitrogen for cyanobacteria. We expressed and purified argininosuccinate lyases, ArgHs, from Synechocystis sp. PCC 6803, Nostoc sp. PCC 7120, and Arthrospira platensis NIES-39. The catalytic efficiency of the Nostoc sp. PCC 7120 ArgH was 2.8-fold higher than those of Synechocystis sp. PCC 6803 and Arthrospira platensis NIES-39. All three ArgHs were inhibited in the presence of arginine, and their inhibitory effects were lowered at pH 7.0, compared to those at pH 8.0. These results indicate that arginine inhibition of ArgH is widely conserved among the three cyanobacterial orders. The current results demonstrate the conserved regulation of enzymes in the cyanobacterial aspartase/fumarase superfamily.
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Affiliation(s)
- Noriaki Katayama
- School of Agriculture, Meiji University, 1-1-1, Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Takashi Osanai
- School of Agriculture, Meiji University, 1-1-1, Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan.
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Lu Y, Sun L, Pang J, Li C, Wang X, Hu X, Li G, Li X, Zhang Y, Wang H, Yang X, You X. Roles of cysteine in the structure and metabolic function of Mycobacterium tuberculosis CYP142A1. RSC Adv 2022; 12:24447-24455. [PMID: 36128375 PMCID: PMC9425443 DOI: 10.1039/d2ra04257f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/18/2022] [Indexed: 11/21/2022] Open
Abstract
CYP142A1 is a cytochrome P450 (CYP) enzyme expressed in Mycobacterium tuberculosis (Mtb), which supports the growth of Mtb H37Rv relying on cholesterol, in the absence of CYP125A1. Since cysteine residues usually play a fundamental role in maintaining the structure and function of CYP enzymes, in this study, we aimed to determine the potential biochemical functions of six cysteine residues except for the heme-binding cysteine in the amino acid sequence of recombinant Mtb CYP142A1 by replacing each one using site-directed mutagenesis. Recombinant CYP142A1 mutants were heterologously expressed, purified, and analyzed using ESI-MS, far-UV CD spectroscopy, UV-vis spectrophotometric titration, and metabolic function assays. Substitution of the cysteine residues caused various effects on the structure and function of CYP142A1. Separate substitution of the six cysteine residues resulted in numerous changes in the secondary structure, expression level, substrate-binding ability, inhibitor-binding ability, thermal stability and oxidation efficiency of the enzyme. These results contribute to our understanding of the biochemical roles of cysteine residues in the structure and function of Mtb CYP enzymes, especially their effects on the structure and function of CYP142A1. Substitution of the six cysteine residues resulted in changes in Mtb CYP142A1 structure, binding ability, thermal stability and oxidation efficiency.![]()
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Affiliation(s)
- Yun Lu
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lilan Sun
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jing Pang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Congran Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiukun Wang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xinxin Hu
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guoqing Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xue Li
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Youwen Zhang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hao Wang
- School of Pharmacy, Minzu University of China, Beijing, China
| | - Xinyi Yang
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuefu You
- Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Liu B, Hou W, Li K, Chen Q, Liu Y, Yue T. Specific gene SEN1393 contributes to higher survivability of Salmonella Enteritidis in egg white by regulating sulfate assimilation pathway. Int J Food Microbiol 2020; 337:108927. [PMID: 33152571 DOI: 10.1016/j.ijfoodmicro.2020.108927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 10/09/2020] [Accepted: 10/12/2020] [Indexed: 11/16/2022]
Abstract
Salmonella enterica serovar Enteritidis (S. Enteritidis) presents an excellent capacity to survive in egg white, which is a hostile environment for bacterial growth. To reveal its survival mechanism, this study focuses on the specific gene SEN1393, which has been found to exist only in the genomic sequence of S. Enteritidis. The survival capacity of the deletion mutant strain ΔSEN1393 was proven to be significantly reduced after incubation in egg white. RNA sequencing and RT-qPCR results demonstrate that the expression levels of 19 genes were up-regulated, while the expression levels of 9 genes were down-regulated in egg white. These genes were classified into 6 groups based on their functional categories, namely the sulfate assimilation pathway, arginine biosynthesis, the tricarboxylic acid cycle, the fimbrial protein, the transport and chelation of metal ion, and others (sctT, rhs, and pspG). The strain ΔSEN1393 was deduced to damage FeS cluster enzymes and increase the sulfate and iron requirements, and to reduce bacterial motility and copper homeostasis. Via InterProScan analysis, the gene SEN1393 was speculated to encode a TerB-like and/or DjlA-like protein, and therefore, together with cysJ, possibly reduced the oxidative toxicities resulting from oxyanions such as tellurite, and/or improved CysPUWA conformation to restrain the uptake of the toxic oxyanions. In summary, the gene SEN1393 enabled the higher survival of S. Enteritidis in egg white as compared to other pathogens by regulating the sulfate assimilation pathway.
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Affiliation(s)
- Bin Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture, Yangling, China; National Engineering Research Center of Agriculture Integration Test, Yangling, China.
| | - Wanwan Hou
- College of Food Science and Engineering, Northwest A&F University, Yangling, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture, Yangling, China; National Engineering Research Center of Agriculture Integration Test, Yangling, China
| | - Ke Li
- Zhejiang Academy of Science & Technology for Inspection & Quarantine, Hangzhou, China
| | - Qing Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture, Yangling, China; National Engineering Research Center of Agriculture Integration Test, Yangling, China
| | - Yaxin Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture, Yangling, China; National Engineering Research Center of Agriculture Integration Test, Yangling, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products, Ministry of Agriculture, Yangling, China; National Engineering Research Center of Agriculture Integration Test, Yangling, China
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Yi WJ, Han YS, Wei LL, Shi LY, Huang H, Jiang TT, Li ZB, Chen J, Hu YT, Tu HH, Li JC. l-Histidine, arachidonic acid, biliverdin, and l-cysteine-glutathione disulfide as potential biomarkers for cured pulmonary tuberculosis. Biomed Pharmacother 2019; 116:108980. [PMID: 31125821 DOI: 10.1016/j.biopha.2019.108980] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 04/15/2019] [Accepted: 05/08/2019] [Indexed: 11/25/2022] Open
Abstract
Lack of laboratory standards for cured tuberculosis (TB) can lead to early discharge of untreated TB patients from the hospital, resulting in increased risk of TB spread and of developing drug resistant Mycobacterium tuberculosis (Mtb). We used ultra-high performance liquid chromatography coupled with mass spectrometry (LC-MS) to detect heparin anticoagulant in plasma of untreated TB patients, two-month treated TB patients, cured TB subjects, and healthy controls. Screening of differentially expressed metabolites resulted in identification of four differentially expressed metabolites such as, l-Histidine, Arachidonic acid (AA), Biliverdin, and l-Cysteine-glutathione disulfide after 6 months of TB treatment. Among them, l-Cysteine-glutathione disulfide and AA could be identified after 2 months of TB treatment. We established a cured TB model with an area under the curve (AUC) of 0.909 (95% CI, 0.802-0.970), 86.2% sensitivity, and 85.2% specificity. The diagnostic model fitted from the four differential metabolites in combination (l-Histidine, AA, Biliverdin, and l-Cysteine-glutathione disulfide) can be used as potential biomarkers for cured TB. Our study provided laboratory standards for hospital discharge of TB patients, as well as experimental basis for evaluating the efficacy of anti-TB drugs.
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Affiliation(s)
- Wen-Jing Yi
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Yu-Shuai Han
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Li-Liang Wei
- Department of Pneumology, Shaoxing Municipal Hospital, Shaoxing, 312000, China.
| | - Li-Ying Shi
- Department of Clinical Laboratory, Zhejiang Hospital, Hangzhou, 310058, China.
| | - Huai Huang
- School of Medicine, South China University of Technology, Guangzhou, 510000, China.
| | - Ting-Ting Jiang
- School of Medicine, South China University of Technology, Guangzhou, 510000, China.
| | - Zhi-Bin Li
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Jing Chen
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Yu-Ting Hu
- School of Medicine, South China University of Technology, Guangzhou, 510000, China.
| | - Hui-Hui Tu
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Ji-Cheng Li
- Institute of Cell Biology, Zhejiang University School of Medicine, Hangzhou, 310058, China.
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Paul A, Mishra A, Surolia A, Vijayan M. Structural studies on
M. tuberculosis
argininosuccinate lyase and its liganded complex: Insights into catalytic mechanism. IUBMB Life 2019; 71:643-652. [DOI: 10.1002/iub.2000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 12/17/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Anju Paul
- Molecular Biophysics UnitIndian Institute of Science Bangalore India
| | - Archita Mishra
- Molecular Biophysics UnitIndian Institute of Science Bangalore India
| | - Avadhesha Surolia
- Molecular Biophysics UnitIndian Institute of Science Bangalore India
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Mishra A, Surolia A. Mycobacterium tuberculosis: Surviving and Indulging in an Unwelcoming Host. IUBMB Life 2018; 70:917-925. [DOI: 10.1002/iub.1882] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/02/2018] [Accepted: 05/04/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Archita Mishra
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka, India 560012
| | - Avadhesha Surolia
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka, India 560012
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Issue Highlights. IUBMB Life 2017. [DOI: 10.1002/iub.1691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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