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Natesungnoen M, Pongrakhananon V, Lindblad P, Jantaro S. Overexpressing Carotenoid Biosynthetic Genes in Synechocystis sp. PCC 6803 Improved Intracellular Pigments and Antioxidant Activity, Which Can Decrease the Viability and Proliferation of Lung Cancer Cells In Vitro. Int J Mol Sci 2023; 24:ijms24119370. [PMID: 37298323 DOI: 10.3390/ijms24119370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
In the antioxidant system in cyanobacteria, non-enzymatic antioxidants, such as carotenoids, are considered good candidates for coping with oxidative stress, particularly light stress, and pharmaceutical therapeutic applications. A significant amount of carotenoid accumulation has been recently improved by genetic engineering. In this study, to achieve higher carotenoid production with higher antioxidant activity, we successfully constructed five Synechocystis sp. PCC 6803 strains overexpressing (OX) native genes related to the carotenoids biosynthetic pathway, including OX_CrtB, OX_CrtP, OX_CrtQ, OX_CrtO, and OX_CrtR. All of the engineered strains maintained a significant quantity of myxoxanthophyll, while increasing zeaxanthin and echinenone accumulation. In addition, higher components of zeaxanthin and echinenone were noted in all OX strains, ranging from 14 to 19% and from 17 to 22%, respectively. It is worth noting that the enhanced echinenone component responded to low light conditions, while the increased β-carotene component contributed to a high light stress response. According to the higher antioxidant activity of all OX strains, the carotenoid extracts presented lower IC50 in lung cancer cell lines H460 and A549, with values less than 157 and 139 µg/mL, respectively, when compared with those of WTc, particularly OX_CrtR and OX_CrtQ. A higher proportion of zeaxanthin and β-carotene in OX_CrtR and OX_CrtQ, respectively, may considerably contribute to the ability to treat lung cancer cells with antiproliferative and cytotoxic effects.
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Affiliation(s)
- Maturin Natesungnoen
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Varisa Pongrakhananon
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Peter Lindblad
- Microbial Chemistry, Department of Chemistry-Ångström, Uppsala University, P.O. Box 523, SE-75120 Uppsala, Sweden
| | - Saowarath Jantaro
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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Steven R, Humaira Z, Natanael Y, Dwivany FM, Trinugroho JP, Dwijayanti A, Kristianti T, Tallei TE, Emran TB, Jeon H, Alhumaydhi FA, Radjasa OK, Kim B. Marine Microbial-Derived Resource Exploration: Uncovering the Hidden Potential of Marine Carotenoids. Mar Drugs 2022; 20:352. [PMID: 35736155 PMCID: PMC9229179 DOI: 10.3390/md20060352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 12/04/2022] Open
Abstract
Microbes in marine ecosystems are known to produce secondary metabolites. One of which are carotenoids, which have numerous industrial applications, hence their demand will continue to grow. This review highlights the recent research on natural carotenoids produced by marine microorganisms. We discuss the most recent screening approaches for discovering carotenoids, using in vitro methods such as culture-dependent and culture-independent screening, as well as in silico methods, using secondary metabolite Biosynthetic Gene Clusters (smBGCs), which involves the use of various rule-based and machine-learning-based bioinformatics tools. Following that, various carotenoids are addressed, along with their biological activities and metabolic processes involved in carotenoids biosynthesis. Finally, we cover the application of carotenoids in health and pharmaceutical industries, current carotenoids production system, and potential use of synthetic biology in carotenoids production.
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Affiliation(s)
- Ray Steven
- Institut Teknologi Bandung, School of Life Sciences and Technology, Bandung 40132, Indonesia; (R.S.); (Z.H.); (Y.N.)
| | - Zalfa Humaira
- Institut Teknologi Bandung, School of Life Sciences and Technology, Bandung 40132, Indonesia; (R.S.); (Z.H.); (Y.N.)
| | - Yosua Natanael
- Institut Teknologi Bandung, School of Life Sciences and Technology, Bandung 40132, Indonesia; (R.S.); (Z.H.); (Y.N.)
| | - Fenny M. Dwivany
- Institut Teknologi Bandung, School of Life Sciences and Technology, Bandung 40132, Indonesia; (R.S.); (Z.H.); (Y.N.)
| | - Joko P. Trinugroho
- Department of Life Sciences, Imperial College London, South Kensington Campus, London SW72AZ, UK;
| | - Ari Dwijayanti
- CNRS@CREATE Ltd., 1 Create Way, #08-01 Create Tower, Singapore 138602, Singapore;
| | | | - Trina Ekawati Tallei
- Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado 95115, Indonesia;
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh;
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh
| | - Heewon Jeon
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 1-5 Hoegidong, Seoul 02447, Korea;
| | - Fahad A. Alhumaydhi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah 52571, Saudi Arabia;
| | - Ocky Karna Radjasa
- Oceanography Research Center, The Earth Sciences and Maritime Research Organization, National Research and Innovation Agency, North Jakarta 14430, Indonesia
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, 1-5 Hoegidong, Seoul 02447, Korea;
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Lehmann M, Vamvaka E, Torrado A, Jahns P, Dann M, Rosenhammer L, Aziba A, Leister D, Rühle T. Introduction of the Carotenoid Biosynthesis α-Branch Into Synechocystis sp. PCC 6803 for Lutein Production. FRONTIERS IN PLANT SCIENCE 2021; 12:699424. [PMID: 34295345 PMCID: PMC8291087 DOI: 10.3389/fpls.2021.699424] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/09/2021] [Indexed: 06/13/2023]
Abstract
Lutein, made by the α-branch of the methyl-erythritol phosphate (MEP) pathway, is one of the most abundant xanthophylls in plants. It is involved in the structural stabilization of light-harvesting complexes, transfer of excitation energy to chlorophylls and photoprotection. In contrast, lutein and the α-branch of the MEP pathway are not present in cyanobacteria. In this study, we genetically engineered the cyanobacterium Synechocystis for the missing MEP α-branch resulting in lutein accumulation. A cassette comprising four Arabidopsis thaliana genes coding for two lycopene cyclases (AtLCYe and AtLCYb) and two hydroxylases (AtCYP97A and AtCYP97C) was introduced into a Synechocystis strain that lacks the endogenous, cyanobacterial lycopene cyclase cruA. The resulting synlut strain showed wild-type growth and only moderate changes in total pigment composition under mixotrophic conditions, indicating that the cruA deficiency can be complemented by Arabidopsis lycopene cyclases leaving the endogenous β-branch intact. A combination of liquid chromatography, UV-Vis detection and mass spectrometry confirmed a low but distinct synthesis of lutein at rates of 4.8 ± 1.5 nmol per liter culture at OD730 (1.03 ± 0.47 mmol mol-1 chlorophyll). In conclusion, synlut provides a suitable platform to study the α-branch of the plastidic MEP pathway and other functions related to lutein in a cyanobacterial host system.
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Affiliation(s)
- Martin Lehmann
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Evgenia Vamvaka
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Alejandro Torrado
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Peter Jahns
- Plant Biochemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Marcel Dann
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Lea Rosenhammer
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Amel Aziba
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Dario Leister
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Thilo Rühle
- Plant Molecular Biology, Faculty of Biology, Ludwig-Maximilians-University Munich, Munich, Germany
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Swapnil P, Meena M, Singh SK, Dhuldhaj UP, Harish, Marwal A. Vital roles of carotenoids in plants and humans to deteriorate stress with its structure, biosynthesis, metabolic engineering and functional aspects. CURRENT PLANT BIOLOGY 2021; 26:100203. [DOI: 10.1016/j.cpb.2021.100203] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
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Liang N, Chen C, Wang Y, Ding MZ, Yao MD, Xiao WH, Yuan YJ. Exploring Catalysis Specificity of Phytoene Dehydrogenase CrtI in Carotenoid Synthesis. ACS Synth Biol 2020; 9:1753-1762. [PMID: 32579850 DOI: 10.1021/acssynbio.0c00128] [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] [Indexed: 11/29/2022]
Abstract
Carotenoids, a variety of natural products, have significant pharmaceutical and commercial potential. Phytoene dehydrogenase (CrtI) is the rate-limit enzyme for carotenoid synthesis, whose catalysis specificity results in various carotenoids. However, the structural characteristics of CrtI for controlling the catalysis specificity on dehydrogenation steps are still unclear, which limited the development of CrtI function. Here we confirmed two mutation sites H136 and H453 in the mutant library of CrtI from Blakeslea trispora, which markedly regulated catalytic specificity. Interestingly, the sequence alignment features at H136 and H453 were consistent with the phylogenetic analysis of CrtI families. Subsequently, the functions of saturated mutants at H136 and H453 were clustered by principal component analysis (PCA) and k-means. According to the clustering results, diversiform mutants with specific dehydrogenation function provided important application value for carotenoid product customization. Meanwhile, this study also enriched the theory of enzyme evolution and guided the functional development of enzymes.
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Affiliation(s)
- Nan Liang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Chen Chen
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Ying Wang
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Ming-Zhu Ding
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Ming-Dong Yao
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Wen-Hai Xiao
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Ying-Jin Yuan
- Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
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Izuhara T, Kaihatsu I, Jimbo H, Takaichi S, Nishiyama Y. Elevated Levels of Specific Carotenoids During Acclimation to Strong Light Protect the Repair of Photosystem II in Synechocystis sp. PCC 6803. FRONTIERS IN PLANT SCIENCE 2020; 11:1030. [PMID: 32733521 PMCID: PMC7358549 DOI: 10.3389/fpls.2020.01030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
The tolerance of photosynthesis to strong light increases in photosynthetic organisms during acclimation to strong light. We investigated the role of carotenoids in the protection of photosystem II (PSII) from photoinhibition after acclimation to strong light in the cyanobacterium Synechocystis sp. PCC 6803. In cells that had been grown under strong light at 1,000 μmol photons m-2 s-1 (SL), specific carotenoids, namely, zeaxanthin, echinenone, and myxoxanthophyll, accumulated at high levels, and the photoinhibition of PSII was less marked than in cells that had been grown under standard growth light at 70 μmol photons m-2 s-1 (GL). The rate of photodamage to PSII, as monitored in the presence of lincomycin, did not differ between cells grown under SL and GL, suggesting that the mitigation of photoinhibition after acclimation to SL might be attributable to the enhanced ability to repair PSII. When cells grown under GL were transferred to SL, the mitigation of photoinhibition of PSII occurred in two distinct stages: a first stage that lasted 4 h and the second stage that occurred after 8 h. During the second stage, the accumulation of specific carotenoids was detected, together with enhanced synthesis de novo of proteins that are required for the repair of PSII, such as the D1 protein, and suppression of the production of singlet oxygen (1O2). In the ΔcrtRΔcrtO mutant of Synechocystis, which lacks zeaxanthin, echinenone, and myxoxanthophyll, the mitigation of photoinhibition of PSII, the enhancement of protein synthesis, and the suppression of production of 1O2 were significantly impaired during the second stage of acclimation. Thus, elevated levels of the specific carotenoids during acclimation to strong light appeared to protect protein synthesis from 1O2, with the resultant mitigation of photoinhibition of PSII.
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Affiliation(s)
- Taichi Izuhara
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Ikumi Kaihatsu
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, Japan
| | - Haruhiko Jimbo
- Graduate School of Art and Sciences, The University of Tokyo, Tokyo, Japan
| | - Shinichi Takaichi
- Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture, Tokyo, Japan
| | - Yoshitaka Nishiyama
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, Saitama, Japan
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Cao T, Wang L, Huang X, Deng Y, Yang L, Lu S. Manipulation of Synechocystis sp. PCC 6803 as a platform for functional identification of genes involved in carotenoid metabolism. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:605-607. [PMID: 31469498 PMCID: PMC7004913 DOI: 10.1111/pbi.13245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 08/16/2019] [Accepted: 08/23/2019] [Indexed: 05/15/2023]
Affiliation(s)
- Tian‐Jun Cao
- State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina
| | - Lin‐Juan Wang
- State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina
| | - Xing‐Qi Huang
- State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina
| | - Yin‐Yin Deng
- State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina
- Jiangsu Marine Fisheries Research InstituteNantongChina
| | - Li‐En Yang
- Jiangsu Marine Fisheries Research InstituteNantongChina
| | - Shan Lu
- State Key Laboratory of Pharmaceutical BiotechnologySchool of Life SciencesNanjing UniversityNanjingChina
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Baers LL, Breckels LM, Mills LA, Gatto L, Deery MJ, Stevens TJ, Howe CJ, Lilley KS, Lea-Smith DJ. Proteome Mapping of a Cyanobacterium Reveals Distinct Compartment Organization and Cell-Dispersed Metabolism. PLANT PHYSIOLOGY 2019; 181:1721-1738. [PMID: 31578229 PMCID: PMC6878006 DOI: 10.1104/pp.19.00897] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/11/2019] [Indexed: 05/23/2023]
Abstract
Cyanobacteria are complex prokaryotes, incorporating a Gram-negative cell wall and internal thylakoid membranes (TMs). However, localization of proteins within cyanobacterial cells is poorly understood. Using subcellular fractionation and quantitative proteomics, we produced an extensive subcellular proteome map of an entire cyanobacterial cell, identifying ∼67% of proteins in Synechocystis sp. PCC 6803, ∼1000 more than previous studies. Assigned to six specific subcellular regions were 1,712 proteins. Proteins involved in energy conversion localized to TMs. The majority of transporters, with the exception of a TM-localized copper importer, resided in the plasma membrane (PM). Most metabolic enzymes were soluble, although numerous pathways terminated in the TM (notably those involved in peptidoglycan monomer, NADP+, heme, lipid, and carotenoid biosynthesis) or PM (specifically, those catalyzing lipopolysaccharide, molybdopterin, FAD, and phylloquinol biosynthesis). We also identified the proteins involved in the TM and PM electron transport chains. The majority of ribosomal proteins and enzymes synthesizing the storage compound polyhydroxybuyrate formed distinct clusters within the data, suggesting similar subcellular distributions to one another, as expected for proteins operating within multicomponent structures. Moreover, heterogeneity within membrane regions was observed, indicating further cellular complexity. Cyanobacterial TM protein localization was conserved in Arabidopsis (Arabidopsis thaliana) chloroplasts, suggesting similar proteome organization in more developed photosynthetic organisms. Successful application of this technique in Synechocystis suggests it could be applied to mapping the proteomes of other cyanobacteria and single-celled organisms. The organization of the cyanobacterial cell revealed here substantially aids our understanding of these environmentally and biotechnologically important organisms.
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Affiliation(s)
- Laura L Baers
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Lisa M Breckels
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
- Computational Proteomics Unit, Cambridge Centre for Proteomics, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Lauren A Mills
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
| | - Laurent Gatto
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
- Computational Proteomics Unit, Cambridge Centre for Proteomics, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Michael J Deery
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Tim J Stevens
- MRC Laboratory of Molecular Biology, Cambridge CB2 0QH United Kingdom
| | - Christopher J Howe
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - Kathryn S Lilley
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
| | - David J Lea-Smith
- Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom
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Loeschcke A, Dienst D, Wewer V, Hage-Hülsmann J, Dietsch M, Kranz-Finger S, Hüren V, Metzger S, Urlacher VB, Gigolashvili T, Kopriva S, Axmann IM, Drepper T, Jaeger KE. The photosynthetic bacteria Rhodobacter capsulatus and Synechocystis sp. PCC 6803 as new hosts for cyclic plant triterpene biosynthesis. PLoS One 2017; 12:e0189816. [PMID: 29281679 PMCID: PMC5744966 DOI: 10.1371/journal.pone.0189816] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 12/01/2017] [Indexed: 11/18/2022] Open
Abstract
Cyclic triterpenes constitute one of the most diverse groups of plant natural products. Besides the intriguing biochemistry of their biosynthetic pathways, plant triterpenes exhibit versatile bioactivities, including antimicrobial effects against plant and human pathogens. While prokaryotes have been extensively used for the heterologous production of other classes of terpenes, the synthesis of cyclic triterpenes, which inherently includes the two-step catalytic formation of the universal linear precursor 2,3-oxidosqualene, is still a major challenge. We thus explored the suitability of the metabolically versatile photosynthetic α-proteobacterium Rhodobacter capsulatus SB1003 and cyanobacterium Synechocystis sp. PCC 6803 as alternative hosts for biosynthesis of cyclic plant triterpenes. Therefore, 2,3-oxidosqualene production was implemented and subsequently combined with different cyclization reactions catalyzed by the representative oxidosqualene cyclases CAS1 (cycloartenol synthase), LUP1 (lupeol synthase), THAS1 (thalianol synthase) and MRN1 (marneral synthase) derived from model plant Arabidopsis thaliana. While successful accumulation of 2,3-oxidosqualene could be detected by LC-MS analysis in both hosts, cyclase expression resulted in differential production profiles. CAS1 catalyzed conversion to only cycloartenol, but expression of LUP1 yielded lupeol and a triterpenoid matching an oxidation product of lupeol, in both hosts. In contrast, THAS1 expression did not lead to cyclic product formation in either host, whereas MRN1-dependent production of marnerol and hydroxymarnerol was observed in Synechocystis but not in R. capsulatus. Our findings thus indicate that 2,3-oxidosqualene cyclization in heterologous phototrophic bacteria is basically feasible but efficient conversion depends on both the respective cyclase enzyme and individual host properties. Therefore, photosynthetic α-proteo- and cyanobacteria are promising alternative candidates for providing new bacterial access to the broad class of triterpenes for biotechnological applications.
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Affiliation(s)
- Anita Loeschcke
- Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf, Forschungszentrum Jülich, Jülich, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS)
| | - Dennis Dienst
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute for Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Vera Wewer
- Cluster of Excellence on Plant Sciences (CEPLAS)
- MS Platform, Department of Biology, University of Cologne, Cologne, Germany
| | - Jennifer Hage-Hülsmann
- Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf, Forschungszentrum Jülich, Jülich, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS)
| | - Maximilian Dietsch
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute for Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Sarah Kranz-Finger
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute of Biochemistry II, Department of Chemistry, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Vanessa Hüren
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute for Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Sabine Metzger
- Cluster of Excellence on Plant Sciences (CEPLAS)
- MS Platform, Department of Biology, University of Cologne, Cologne, Germany
| | - Vlada B. Urlacher
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute of Biochemistry II, Department of Chemistry, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Tamara Gigolashvili
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Botanical Institute, University of Cologne, Cologne, Germany
| | - Stanislav Kopriva
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Botanical Institute, University of Cologne, Cologne, Germany
| | - Ilka M. Axmann
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute for Synthetic Microbiology, Department of Biology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- * E-mail: (IMA); (TD)
| | - Thomas Drepper
- Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf, Forschungszentrum Jülich, Jülich, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS)
- * E-mail: (IMA); (TD)
| | - Karl-Erich Jaeger
- Institute of Molecular Enzyme Technology, Heinrich Heine University Düsseldorf, Forschungszentrum Jülich, Jülich, Germany
- Cluster of Excellence on Plant Sciences (CEPLAS)
- Institute of Bio- and Geosciences (IBG-1), Forschungszentrum Jülich, Jülich, Germany
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Chen Q, Arents J, Ganapathy S, de Grip WJ, Hellingwerf KJ. Functional Expression of Gloeobacter Rhodopsin inSynechocystissp. PCC6803. Photochem Photobiol 2017; 93:772-781. [DOI: 10.1111/php.12745] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/07/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Que Chen
- Molecular Microbial Physiology; Swammerdam Institute for Life Sciences; University of Amsterdam; Amsterdam The Netherlands
| | - Jos Arents
- Molecular Microbial Physiology; Swammerdam Institute for Life Sciences; University of Amsterdam; Amsterdam The Netherlands
| | - Srividya Ganapathy
- Biophysical Organic Chemistry; Leiden Institute of Chemistry; Leiden University; Leiden The Netherlands
| | - Willem J. de Grip
- Biophysical Organic Chemistry; Leiden Institute of Chemistry; Leiden University; Leiden The Netherlands
| | - Klaas J. Hellingwerf
- Molecular Microbial Physiology; Swammerdam Institute for Life Sciences; University of Amsterdam; Amsterdam The Netherlands
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11
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Selão TT, Zhang L, Knoppová J, Komenda J, Norling B. Photosystem II Assembly Steps Take Place in the Thylakoid Membrane of the Cyanobacterium Synechocystis sp. PCC6803. PLANT & CELL PHYSIOLOGY 2016; 57:95-104. [PMID: 26578692 DOI: 10.1093/pcp/pcv178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/09/2015] [Indexed: 05/09/2023]
Abstract
Thylakoid biogenesis is an intricate process requiring accurate and timely assembly of proteins, pigments and other cofactors into functional, photosynthetically competent membranes. PSII assembly is studied in particular as its core protein, D1, is very susceptible to photodamage and has a high turnover rate, particularly in high light. PSII assembly is a modular process, with assembly steps proceeding in a specific order. Using aqueous two-phase partitioning to separate plasma membranes (PM) and thylakoid membranes (TM), we studied the subcellular localization of the early assembly steps for PSII biogenesis in a Synechocystis sp. PCC6803 cyanobacterium strain lacking the CP47 antenna. This strain accumulates the early D1-D2 assembly complex which was localized in TM along with associated PSII assembly factors. We also followed insertion and processing of the D1 precursor (pD1) by radioactive pulse-chase labeling. D1 is inserted into the membrane with a C-terminal extension which requires cleavage by a specific protease, the C-terminal processing protease (CtpA), to allow subsequent assembly of the oxygen-evolving complex. pD1 insertion as well as its conversion to mature D1 under various light conditions was seen only in the TM. Epitope-tagged CtpA was also localized in the same membrane, providing further support for the thylakoid location of pD1 processing. However, Vipp1 and PratA, two proteins suggested to be part of the so-called 'thylakoid centers', were found to associate with the PM. Together, these results suggest that early PSII assembly steps occur in TM or specific areas derived from them, with interaction with PM needed for efficient PSII and thylakoid biogenesis.
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Affiliation(s)
- Tiago T Selão
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551 Singapore
| | - Lifang Zhang
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551 Singapore
| | - Jana Knoppová
- Institute of Microbiology, Center Algatech, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Josef Komenda
- Institute of Microbiology, Center Algatech, Opatovický mlýn, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Birgitta Norling
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, 637551 Singapore
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Zakar T, Laczko-Dobos H, Toth TN, Gombos Z. Carotenoids Assist in Cyanobacterial Photosystem II Assembly and Function. FRONTIERS IN PLANT SCIENCE 2016; 7:295. [PMID: 27014318 PMCID: PMC4785236 DOI: 10.3389/fpls.2016.00295] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 02/24/2016] [Indexed: 05/10/2023]
Abstract
Carotenoids (carotenes and xanthophylls) are ubiquitous constituents of living organisms. They are protective agents against oxidative stresses and serve as modulators of membrane microviscosity. As antioxidants they can protect photosynthetic organisms from free radicals like reactive oxygen species that originate from water splitting, the first step of photosynthesis. We summarize the structural and functional roles of carotenoids in connection with cyanobacterial Photosystem II. Although carotenoids are hydrophobic molecules, their complexes with proteins also allow cytoplasmic localization. In cyanobacterial cells such complexes are called orange carotenoid proteins, and they protect Photosystem II and Photosystem I by preventing their overexcitation through phycobilisomes (PBS). Recently it has been observed that carotenoids are not only required for the proper functioning, but also for the structural stability of PBSs.
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