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Jin X, Zhang J, An T, Zhao H, Fu W, Li D, Liu S, Cao X, Liu B. A Genome-Wide Screen in Saccharomyces cerevisiae Reveals a Critical Role for Oxidative Phosphorylation in Cellular Tolerance to Lithium Hexafluorophosphate. Cells 2021; 10:cells10040888. [PMID: 33924665 PMCID: PMC8070311 DOI: 10.3390/cells10040888] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
Lithium hexafluorophosphate (LiPF6) is one of the leading electrolytes in lithium-ion batteries, and its usage has increased tremendously in the past few years. Little is known, however, about its potential environmental and biological impacts. In order to improve our understanding of the cytotoxicity of LiPF6 and the specific cellular response mechanisms to it, we performed a genome-wide screen using a yeast (Saccharomyces cerevisiae) deletion mutant collection and identified 75 gene deletion mutants that showed LiPF6 sensitivity. Among these, genes associated with mitochondria showed the most enrichment. We also found that LiPF6 is more toxic to yeast than lithium chloride (LiCl) or sodium hexafluorophosphate (NaPF6). Physiological analysis showed that a high concentration of LiPF6 caused mitochondrial damage, reactive oxygen species (ROS) accumulation, and ATP content changes. Compared with the results of previous genome-wide screening for LiCl-sensitive mutants, we found that oxidative phosphorylation-related mutants were specifically hypersensitive to LiPF6. In these deletion mutants, LiPF6 treatment resulted in higher ROS production and reduced ATP levels, suggesting that oxidative phosphorylation-related genes were important for counteracting LiPF6-induced toxicity. Taken together, our results identified genes specifically involved in LiPF6-modulated toxicity, and demonstrated that oxidative stress and ATP imbalance maybe the driving factors in governing LiPF6-induced toxicity.
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Affiliation(s)
- Xuejiao Jin
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Jie Zhang
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Tingting An
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Huihui Zhao
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Wenhao Fu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Danqi Li
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
| | - Xiuling Cao
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
- Correspondence: (X.C.); (B.L.)
| | - Beidong Liu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin’an, Hangzhou 311300, China; (X.J.); (J.Z.); (T.A.); (H.Z.); (W.F.); (D.L.); (S.L.)
- Department of Chemistry and Molecular Biology, University of Gothenburg, Medicinaregatan 9C, SE-413 90 Goteborg, Sweden
- Center for Large-Scale Cell-Based Screening, Faculty of Science, University of Gothenburg, Medicinaregatan 9C, SE-413 90 Goteborg, Sweden
- Correspondence: (X.C.); (B.L.)
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Wang J, Ding H, Zheng F, Li Y, Liu C, Niu C, Li Q. Physiological Changes of Beer Brewer's Yeast During Serial Beer Fermentation. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2019. [DOI: 10.1080/03610470.2018.1546030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jinjing Wang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Huajian Ding
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Feiyun Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Yongxian Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Chunfeng Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Chengtuo Niu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Qi Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, China
- Lab of Brewing Science and Technology, School of Biotechnology, Jiangnan University, Wuxi, China
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
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Hara KY, Kondo A. ATP regulation in bioproduction. Microb Cell Fact 2015; 14:198. [PMID: 26655598 PMCID: PMC4676173 DOI: 10.1186/s12934-015-0390-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 11/25/2015] [Indexed: 01/06/2023] Open
Abstract
Adenosine-5'-triphosphate (ATP) is consumed as a biological energy source by many intracellular reactions. Thus, the intracellular ATP supply is required to maintain cellular homeostasis. The dependence on the intracellular ATP supply is a critical factor in bioproduction by cell factories. Recent studies have shown that changing the ATP supply is critical for improving product yields. In this review, we summarize the recent challenges faced by researchers engaged in the development of engineered cell factories, including the maintenance of a large ATP supply and the production of cell factories. The strategies used to enhance ATP supply are categorized as follows: addition of energy substrates, controlling pH, metabolic engineering of ATP-generating or ATP-consuming pathways, and controlling reactions of the respiratory chain. An enhanced ATP supply generated using these strategies improves target production through increases in resource uptake, cell growth, biosynthesis, export of products, and tolerance to toxic compounds.
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Affiliation(s)
- Kiyotaka Y Hara
- Department of Environmental Sciences, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan.
| | - Akihiko Kondo
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan.
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Branchini BR, Southworth TL, Fontaine DM, Kohrt D, Talukder M, Michelini E, Cevenini L, Roda A, Grossel MJ. An enhanced chimeric firefly luciferase-inspired enzyme for ATP detection and bioluminescence reporter and imaging applications. Anal Biochem 2015; 484:148-53. [PMID: 26049097 PMCID: PMC4496250 DOI: 10.1016/j.ab.2015.05.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 05/26/2015] [Accepted: 05/29/2015] [Indexed: 10/23/2022]
Abstract
Firefly luciferases, which emit visible light in a highly specific ATP-dependent process, have been adapted for a variety of applications, including gene reporter assays, whole-cell biosensor measurements, and in vivo imaging. We previously reported the approximately 2-fold enhanced activity and 1.4-fold greater bioluminescence quantum yield properties of a chimeric enzyme that contains the N-domain of Photinus pyralis luciferase joined to the C-domain of Luciola italica luciferase. Subsequently, we identified 5 amino acid changes based on L. italica that are the main determinants of the improved bioluminescence properties. Further engineering to enhance thermal and pH stability produced a novel luciferase called PLG2. We present here a systematic comparison of the spectral and physical properties of the new protein with P. pyralis luciferase and demonstrate the potential of PLG2 for use in assays based on the detection of femtomole levels of ATP. In addition, we compared the performance of a mammalian codon-optimized version of the cDNA for PLG2 with the luc2 gene in HEK293T cells. Using an optimized low-cost assay system, PLG2 activity can be monitored in mammalian cell lysates and living cells with 4.4-fold and approximately 3.0-fold greater sensitivity, respectively. PLG2 could be an improved alternative to Promega's luc2 for reporter and imaging applications.
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Affiliation(s)
- Bruce R Branchini
- Department of Chemistry, Connecticut College, New London, CT 06320, USA.
| | - Tara L Southworth
- Department of Chemistry, Connecticut College, New London, CT 06320, USA
| | | | - Dawn Kohrt
- Department of Biology, Connecticut College, New London, CT 06320, USA
| | - Munya Talukder
- Department of Chemistry, Connecticut College, New London, CT 06320, USA
| | - Elisa Michelini
- Department of Chemistry "G. Ciamician", University of Bologna, 40126 Bologna, Italy
| | - Luca Cevenini
- Department of Chemistry "G. Ciamician", University of Bologna, 40126 Bologna, Italy
| | - Aldo Roda
- Department of Chemistry "G. Ciamician", University of Bologna, 40126 Bologna, Italy
| | - Martha J Grossel
- Department of Biology, Connecticut College, New London, CT 06320, USA
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