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Kumar S, Møller AH, Ilmjärv T, Dalsgaard TK. Stability of R-phycoerythrin from Furcellaria lumbricalis - Dependence on purification strategies and purity. Food Res Int 2024; 190:114595. [PMID: 38945610 DOI: 10.1016/j.foodres.2024.114595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/29/2024] [Accepted: 06/01/2024] [Indexed: 07/02/2024]
Abstract
R-phycoerythrin (R-PE) is the most abundant, naturally occurring phycobiliproteins found in red algae. The spectroscopic and structural properties of phycobiliproteins exhibit unique absorption characteristics with two significant absorption maxima at 498 and 565 nm, indicating two different chromophores of R-PE, phycourobilin and phycoerythrobilin respectively. This study aimed to clarify how the stability of R-PE purified from F. lumbricalis was affected by different purification strategies. Crude extracts were compared to R-PE purified by i) microfiltration, ii) ultrafiltration, and iii) multi-step ammonium sulphate precipitation followed by dialysis. The stability of the different R-PE preparations was evaluated with respect to pH (2, 4, 6, 7, 8, 10 and 12) and temperature (20, 40, 60, 80 and 100 °C). The absorbance spectra indicated higher stability of phycourobilin as compared to phycoerythrobilin for heat and pH stability in the samples. All preparations of R-PE showed heat stability till 40 °C from the findings of color, concentration of R-PE and fluorescence emission. The crude extract showed stability from pH 6 to 8, whereas R-PE purified by ultrafiltration and multi-step ammonium sulphate precipitation were both stable from pH 4 to 8 and R-PE purified by microfiltration exhibited stability from pH 4 to 10 from the results of color, SDS-PAGE, and concentration of R-PE. At pH 2, the color changed to violet whereas a yellow color was observed at pH 12 in the samples along with the precipitation of the protein.
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Affiliation(s)
- Sruthi Kumar
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark; CBIO, Aarhus University Centre for Circular Bioeconomy, 8830 Tjele, Denmark.
| | - Anders Hauer Møller
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark; CBIO, Aarhus University Centre for Circular Bioeconomy, 8830 Tjele, Denmark; CiFOOD, Aarhus University Centre for Innovative Food Research, 8000 Aarhus C, Denmark.
| | - Tanel Ilmjärv
- Vetik OÜ, Lahe Farm, Muratsi Village, Saaremaa Parish, 93859 Saare County, Estonia.
| | - Trine K Dalsgaard
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark; CBIO, Aarhus University Centre for Circular Bioeconomy, 8830 Tjele, Denmark; CiFOOD, Aarhus University Centre for Innovative Food Research, 8000 Aarhus C, Denmark.
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2
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Piera A, Espada JJ, Morales V, Rodríguez R, Vicente G, Bautista LF. Optimised phycoerythrin extraction method from Porphyridium sp. combining imidazolium-based ionic liquids. Heliyon 2024; 10:e34957. [PMID: 39149077 PMCID: PMC11325355 DOI: 10.1016/j.heliyon.2024.e34957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 07/18/2024] [Indexed: 08/17/2024] Open
Abstract
Phycoerythrin (PE) extraction from Porphyridium sp. was studied employing ultrasound-assisted extraction combined with aqueous mixtures of two imidazolium-based ionic liquids (ILs) simultaneously, marking a significant novelty. A face-centred central composite design and response surface optimised PE yield (EPE), considering the effects of ionic liquid concentration (IL), [Emim][EtSO4]/[Bmim][EtSO4] mass ratio (E/B), biomass concentration (BM), and time (t). Improvements in EPE by 300 % and 115 % were achieved compared to a phosphate buffer solution and the freeze-thaw method, respectively. Temperature and pH effects were examined independently, leading to the determination of optimal operating conditions: BM = 10 mg mL-1, IL = 18.6 wt%, E/B = 0.78/0.22, t = 10 min, T = 35 °C, and pH = 7.5. Results indicated the potential for reusing the ILs for at least five consecutive extraction cycles, maintaining an EPE of 94.2 % compared to fresh ones. This underscores the success and innovation of the developed technology in enhancing PE extraction from Porphyridium sp.
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Affiliation(s)
- Alejandro Piera
- Department of Chemical and Environmental Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
| | - Juan J Espada
- Department of Chemical, Energy and Mechanical Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
| | - Victoria Morales
- Department of Chemical and Environmental Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
| | - Rosalía Rodríguez
- Department of Chemical, Energy and Mechanical Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
| | - Gemma Vicente
- Department of Chemical, Energy and Mechanical Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
- Instituto de Tecnologías para la Sostenibilidad, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
| | - Luis Fernando Bautista
- Department of Chemical and Environmental Technology. ESCET, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
- Instituto de Tecnologías para la Sostenibilidad, Universidad Rey Juan Carlos. Tulipán S/n, 28933, Móstoles, Madrid, Spain
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3
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Guo R, Xu YL, Zhu JX, Scheer H, Zhao KH. Assembly of CpcL-phycobilisomes. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:1207-1217. [PMID: 38319793 DOI: 10.1111/tpj.16666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/01/2023] [Accepted: 01/19/2024] [Indexed: 02/08/2024]
Abstract
CpcL-phycobilisomes (CpcL-PBSs) are a reduced type of phycobilisome (PBS) found in several cyanobacteria. They lack the traditional PBS terminal energy emitters, but still show the characteristic red-shifted fluorescence at ~670 nm. We established a method of assembling in vitro a rod-membrane linker protein, CpcL, with phycocyanin, generating complexes with the red-shifted spectral features of CpcL-PBSs. The red-shift arises from the interaction of a conserved key glutamine, Q57 of CpcL in Synechocystis sp. PCC 6803, with a single phycocyanobilin chromophore of trimeric phycocyanin at one of the three β82-sites. This chromophore is the terminal energy acceptor of CpcL-PBSs and donor to the photosystem(s). This mechanism also operates in PBSs from Acaryochloris marina MBIC11017. We then generated multichromic complexes harvesting light over nearly the complete visible range via the replacement of phycocyanobilin chromophores at sites α84 and β153 of phycocyanins by phycoerythrobilin and/or phycourobilin. The results demonstrate the rational design of biliprotein-based light-harvesting elements by engineering CpcL and phycocyanins, which broadens the light-harvesting range and accordingly improves the light-harvesting capacity and may be potentially applied in solar energy harvesting.
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Affiliation(s)
- Rui Guo
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Ya-Li Xu
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Jun-Xun Zhu
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Hugo Scheer
- Department Biologie I, Universität München, Menzinger Str. 67, D-80638, München, Germany
| | - Kai-Hong Zhao
- National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
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Assefa GT, Botha JL, van Heerden B, Kyeyune F, Krüger TPJ, Gwizdala M. ApcE plays an important role in light-induced excitation energy dissipation in the Synechocystis PCC6803 phycobilisomes. PHOTOSYNTHESIS RESEARCH 2024; 160:17-29. [PMID: 38407779 PMCID: PMC11006782 DOI: 10.1007/s11120-024-01078-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/18/2024] [Indexed: 02/27/2024]
Abstract
Phycobilisomes (PBs) play an important role in cyanobacterial photosynthesis. They capture light and transfer excitation energy to the photosynthetic reaction centres. PBs are also central to some photoprotective and photoregulatory mechanisms that help sustain photosynthesis under non-optimal conditions. Amongst the mechanisms involved in excitation energy dissipation that are activated in response to excessive illumination is a recently discovered light-induced mechanism that is intrinsic to PBs and has been the least studied. Here, we used single-molecule spectroscopy and developed robust data analysis methods to explore the role of a terminal emitter subunit, ApcE, in this intrinsic, light-induced mechanism. We isolated the PBs from WT Synechocystis PCC 6803 as well as from the ApcE-C190S mutant of this strain and compared the dynamics of their fluorescence emission. PBs isolated from the mutant (i.e., ApcE-C190S-PBs), despite not binding some of the red-shifted pigments in the complex, showed similar global emission dynamics to WT-PBs. However, a detailed analysis of dynamics in the core revealed that the ApcE-C190S-PBs are less likely than WT-PBs to enter quenched states under illumination but still fully capable of doing so. This result points to an important but not exclusive role of the ApcE pigments in the light-induced intrinsic excitation energy dissipation mechanism in PBs.
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Affiliation(s)
- Gonfa Tesfaye Assefa
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | - Joshua L Botha
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | - Bertus van Heerden
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
- National Institute for Theoretical and Computational Sciences (NITheCS), Stellenbosch, South Africa
| | - Farooq Kyeyune
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
- Department of Physics, Faculty of Science, Kyambogo University, P.O. Box 1, Kyambogo, Kampala, Uganda
| | - Tjaart P J Krüger
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
- National Institute for Theoretical and Computational Sciences (NITheCS), Stellenbosch, South Africa
| | - Michal Gwizdala
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa.
- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa.
- ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Castelldefels, 08860, Spain.
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Elanskaya IV, Bulychev AA, Lukashev EP, Muronets EM, Maksimov EG. Roles of ApcD and orange carotenoid protein in photoinduction of electron transport upon dark-light transition in the Synechocystis PCC 6803 mutant deficient in flavodiiron protein Flv1. PHOTOSYNTHESIS RESEARCH 2024; 159:97-114. [PMID: 37093504 DOI: 10.1007/s11120-023-01019-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Flavodiiron proteins Flv1/Flv3 accept electrons from photosystem (PS) I. In this work we investigated light adaptation mechanisms of Flv1-deficient mutant of Synechocystis PCC 6803, incapable to form the Flv1/Flv3 heterodimer. First seconds of dark-light transition were studied by parallel measurements of light-induced changes in chlorophyll fluorescence, P700 redox transformations, fluorescence emission at 77 K, and OCP-dependent fluorescence quenching. During the period of Calvin cycle activation upon dark-light transition, the linear electron transport (LET) in wild type is supported by the Flv1/Flv3 heterodimer, whereas in Δflv1 mutant activation of LET upon illumination is preceded by cyclic electron flow that maintains State 2. The State 2-State 1 transition and Orange Carotenoid Protein (OCP)-dependent non-photochemical quenching occur independently of each other, begin in about 10 s after the illumination of the cells and are accompanied by a short-term re-reduction of the PSI reaction center (P700+). ApcD is important for the State 2-State 1 transition in the Δflv1 mutant, but S-M rise in chlorophyll fluorescence was not completely inhibited in Δflv1/ΔapcD mutant. LET in Δflv1 mutant starts earlier than the S-M rise in chlorophyll fluorescence, and the oxidation of plastoquinol (PQH2) pool promotes the activation of PSII, transient re-reduction of P700+ and transition to State 1. An attempt to induce state transition in the wild type under high intensity light using methyl viologen, highly oxidizing P700 and PQH2, was unsuccessful, showing that oxidation of intersystem electron-transport carriers might be insufficient for the induction of State 2-State 1 transition in wild type of Synechocystis under high light.
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Affiliation(s)
- Irina V Elanskaya
- Department of Genetics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Alexander A Bulychev
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Evgeny P Lukashev
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Elena M Muronets
- Department of Genetics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Eugene G Maksimov
- Department of Biophysics, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.
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6
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Akhtar P, Balog-Vig F, Han W, Li X, Han G, Shen JR, Lambrev PH. Quantifying the Energy Spillover between Photosystems II and I in Cyanobacterial Thylakoid Membranes and Cells. PLANT & CELL PHYSIOLOGY 2024; 65:95-106. [PMID: 37874689 DOI: 10.1093/pcp/pcad127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/09/2023] [Accepted: 10/14/2023] [Indexed: 10/26/2023]
Abstract
The spatial separation of photosystems I and II (PSI and PSII) is thought to be essential for efficient photosynthesis by maintaining a balanced flow of excitation energy between them. Unlike the thylakoid membranes of plant chloroplasts, cyanobacterial thylakoids do not form tightly appressed grana stacks that enforce strict lateral separation. The coexistence of the two photosystems provides a ground for spillover-excitation energy transfer from PSII to PSI. Spillover has been considered as a pathway of energy transfer from the phycobilisomes to PSI and may also play a role in state transitions as means to avoid overexcitation of PSII. Here, we demonstrate a significant degree of energy spillover from PSII to PSI in reconstituted membranes and isolated thylakoid membranes of Thermosynechococcus (Thermostichus) vulcanus and Synechocystis sp. PCC 6803 by steady-state and time-resolved fluorescence spectroscopy. The quantum yield of spillover in these systems was determined to be up to 40%. Spillover was also found in intact cells but to a considerably lower degree (20%) than in isolated thylakoid membranes. The findings support a model of coexistence of laterally separated microdomains of PSI and PSII in the cyanobacterial cells as well as domains where the two photosystems are energetically connected. The methodology presented here can be applied to probe spillover in other photosynthetic organisms.
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Affiliation(s)
- Parveen Akhtar
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Temesvári krt. 62, Szeged 6726, Hungary
| | - Fanny Balog-Vig
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Temesvári krt. 62, Szeged 6726, Hungary
| | - Wenhui Han
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Xingyue Li
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Guangye Han
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Jian-Ren Shen
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, 700-8530 Japan
| | - Petar H Lambrev
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Temesvári krt. 62, Szeged 6726, Hungary
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7
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van Stokkum IHM, Akhtar P, Biswas A, Lambrev PH. Energy transfer from phycobilisomes to photosystem I at 77 K. FRONTIERS IN PLANT SCIENCE 2023; 14:1293813. [PMID: 38078099 PMCID: PMC10702739 DOI: 10.3389/fpls.2023.1293813] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/01/2023] [Indexed: 04/14/2024]
Abstract
Phycobilisomes serve as a light-harvesting antenna of both photosystem I (PSI) and II (PSII) in cyanobacteria, yet direct energy transfer from phycobilisomes to PSI is not well documented. Here we recorded picosecond time-resolved fluorescence at wavelengths of 605-760 nm in isolated photosystem I (PSI), phycobilisomes and intact cells of a PSII-deficient mutant of Synechocystis sp. PCC 6803 at 77 K to study excitation energy transfer and trapping. By means of a simultaneous target analysis of the kinetics of isolated complexes and whole cells, the pathways and dynamics of energy transfer in vitro and in vivo were established. We establish that the timescale of the slowest equilibration between different terminal emitters in the phycobilisome is ≈800 ps. It was estimated that the terminal emitter in about 40% of the phycobilisomes transfers its energy with a rate constant of 42 ns-1 to PSI. This energy transfer rate is higher than the rates of equilibration within the phycobilisome - between the rods and the core or between the core cylinders - and is evidence for the existence of specific phycobilisome-PSI interactions. The rest of the phycobilisomes remain unconnected or slowly transferring energy to PSI.
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Affiliation(s)
- Ivo H. M. van Stokkum
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Parveen Akhtar
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Avratanu Biswas
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
- Doctoral School of Biology, University of Szeged, Szeged, Hungary
| | - Petar H. Lambrev
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
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Galinytė D, Balčiūnaitė-Murzienė G, Karosienė J, Morudov D, Naginienė R, Baranauskienė D, Šulinskienė J, Kudlinskienė I, Savickas A, Savickienė N. Determination of Heavy Metal Content: Arsenic, Cadmium, Mercury, and Lead in Cyano-Phycocyanin Isolated from the Cyanobacterial Biomass. PLANTS (BASEL, SWITZERLAND) 2023; 12:3150. [PMID: 37687396 PMCID: PMC10490492 DOI: 10.3390/plants12173150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Cyano-phycocyanin (C-PC) is a light-absorbing biliprotein found in cyanobacteria, commonly known as blue-green algae. Due to its antioxidative, anti-inflammatory, and anticancer properties, this protein is a promising substance in medicine and pharmaceuticals. However, cyanobacteria tend to bind heavy metals from the environment, making it necessary to ensure the safety of C-PC for the development of pharmaceutical products, with C-PC isolated from naturally collected cyanobacterial biomass. This study aimed to determine the content of the most toxic heavy metals, arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) in C-PC isolated from different cyanobacterial biomasses collected in the Kaunas Lagoon during 2019-2022, and compare them with the content of heavy metals in C-PC isolated from cultivated Spirulina platensis (S. platensis). Cyanobacteria of Aphanizomenon flos-aquae (A. flos-aquae) dominated the biomass collected in 2019, while the genus Microcystis dominated the biomasses collected in the years 2020 and 2022. Heavy metals were determined using inductively coupled plasma mass spectrometry (ICP-MS). ICP-MS analysis revealed higher levels of the most investigated heavy metals (Pb, Cd, and As) in C-PC isolated from the biomass with the dominant Microcystis spp. compared to C-PC isolated from the biomass with the predominant A. flos-aquae. Meanwhile, C-PC isolated from cultivated S. platensis exhibited lower concentrations of As and Pb than C-PC isolated from naturally collected cyanobacterial biomass.
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Affiliation(s)
- Daiva Galinytė
- Department of Pharmacology, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Gabrielė Balčiūnaitė-Murzienė
- Faculty of Pharmacy, Institute of Pharmaceutical Technologies, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Jūratė Karosienė
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Dmitrij Morudov
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Rima Naginienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | - Dalė Baranauskienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | - Jurgita Šulinskienė
- Laboratory of Toxicology, Neurosciences Institute, Academy of Medicine, Lithuanian University of Health Sciences, Eivenių Str. 4, 50161 Kaunas, Lithuania; (R.N.); (D.B.); (J.Š.)
| | | | - Arūnas Savickas
- Department of Drug Technology and Social Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
| | - Nijolė Savickienė
- Department of Pharmacology, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu Av. 13, 50162 Kaunas, Lithuania;
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9
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Ma Y, Yan F, An L, Shen W, Tang T, Li Z, Dai R. Transcriptome analysis of changes in M. aeruginosa growth and microcystin production under low concentrations of ethinyl estradiol. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160226. [PMID: 36395857 DOI: 10.1016/j.scitotenv.2022.160226] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Ethinyl estradiol (EE2) is a synthetic environmental estrogen with considerable estrogenic activity. It has been found to consequently pose a significant threat to the aquatic ecosystem. Harmful algal blooms are a major aquatic ecological issue. However, the relationship between EE2 and cyanobacterial bloom is mainly unknown. In this study, the physiological and molecular responses of Microcystis aeruginosa to EE2 exposure were investigated. A low level of EE2 (0.02 μg/L) significantly enhanced the growth of algal cells (P < 0.05), whereas higher concentrations of EE2 (0.2-200 μg/L) inhibited it. EE2 at doses ranging from 0.02 to 200 μg/L promoted the production of microcystins (MCs), with genes mcyABD playing a key role in the regulation of MC synthesis. The alterations of chlorophyll-a, carotenoid, and phycocyanin contents caused by EE2 showed the same trend as cell growth. At the molecular level, 200 μg/L EE2 significantly down-regulated genes in photosynthetic pigment synthesis, light harvesting, electron transfer, NADPH, and ATP generation. High concentrations of EE2 caused oxidative damage to algal cells on the 4th d. After 12d exposure, although there was no significant change in superoxide dismutase (SOD) content and no damage observed in membrane lipids, genes related to SOD and glutathione were changed. In addition, due to the down-regulation of pckA, PK, gltA, nrtA, pstS, etc., carbon fixation, glycolysis, TCA cycle, nitrogen and phosphorus metabolism were hindered by EE2 (200 μg/L). Gene fabG in fatty acid biosynthesis was significantly up-regulated, promoting energy storage in cells. These findings provide important clues to elucidate the effects and mechanisms of cyanobacterial blooms triggered by EE2 and help to effectively prevent and control cyanobacterial blooms.
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Affiliation(s)
- Yingxiao Ma
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Feng Yan
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Lili An
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Wendi Shen
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Tingting Tang
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Zihao Li
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Ruihua Dai
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
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10
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Mummadisetti M, Su X, Liu H. An approach to nearest neighbor analysis of pigment-protein complexes using chemical cross-linking in combination with mass spectrometry. Methods Enzymol 2023; 680:139-162. [PMID: 36710009 DOI: 10.1016/bs.mie.2022.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Protein cross-linking is the process of chemically joining two amino acids in a protein or protein complex by a covalent bond. When combined with mass spectrometry, it becomes one of the structural mass spectrometry techniques gaining in importance for deriving valuable three-dimensional structural information on proteins and protein complexes. This platform complements existing structural methods, such as NMR spectroscopy, X-ray crystallography, and cryo-EM. Photosynthetic pigment protein complexes serve as light-energy harvesting systems and perform photochemical conversion as part of the "early events" of photosynthesis. This chapter outlines how to prepare cross-linking pigment protein complex samples for LC-MS/MS analysis, including identification of the cross-linked species, network analysis in a protein complex, and structural modeling and justification.
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Affiliation(s)
| | - Xinyang Su
- Department of Biology, Washington University in St. Louis, St. Louis, MO, United States
| | - Haijun Liu
- Department of Biology, Washington University in St. Louis, St. Louis, MO, United States.
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Carrigee LA, Frick JP, Liu X, Karty JA, Trinidad JC, Tom IP, Yang X, Dufour L, Partensky F, Schluchter WM. The phycoerythrobilin isomerization activity of MpeV in Synechococcus sp. WH8020 is prevented by the presence of a histidine at position 141 within its phycoerythrin-I β-subunit substrate. Front Microbiol 2022; 13:1011189. [PMID: 36458192 PMCID: PMC9705338 DOI: 10.3389/fmicb.2022.1011189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022] Open
Abstract
Marine Synechococcus efficiently harvest available light for photosynthesis using complex antenna systems, called phycobilisomes, composed of an allophycocyanin core surrounded by rods, which in the open ocean are always constituted of phycocyanin and two phycoerythrin (PE) types: PEI and PEII. These cyanobacteria display a wide pigment diversity primarily resulting from differences in the ratio of the two chromophores bound to PEs, the green-light absorbing phycoerythrobilin and the blue-light absorbing phycourobilin. Prior to phycobiliprotein assembly, bilin lyases post-translationally catalyze the ligation of phycoerythrobilin to conserved cysteine residues on α- or β-subunits, whereas the closely related lyase-isomerases isomerize phycoerythrobilin to phycourobilin during the attachment reaction. MpeV was recently shown in Synechococcus sp. RS9916 to be a lyase-isomerase which doubly links phycourobilin to two cysteine residues (C50 and C61; hereafter C50, 61) on the β-subunit of both PEI and PEII. Here we show that Synechococcus sp. WH8020, which belongs to the same pigment type as RS9916, contains MpeV that demonstrates lyase-isomerase activity on the PEII β-subunit but only lyase activity on the PEI β-subunit. We also demonstrate that occurrence of a histidine at position 141 of the PEI β-subunit from WH8020, instead of a leucine in its counterpart from RS9916, prevents the isomerization activity by WH8020 MpeV, showing for the first time that both the substrate and the enzyme play a role in the isomerization reaction. We propose a structural-based mechanism for the role of H141 in blocking isomerization. More generally, the knowledge of the amino acid present at position 141 of the β-subunits may be used to predict which phycobilin is bound at C50, 61 of both PEI and PEII from marine Synechococcus strains.
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Affiliation(s)
- Lyndsay A. Carrigee
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States
- Environmental Laboratory, Engineering and Research Development Center, US Army Corps of Engineers, Vicksburg, MS, United States
| | - Jacob P. Frick
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States
| | - Xindi Liu
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States
| | - Jonathan A. Karty
- Department of Chemistry, Indiana University, Bloomington, IN, United States
| | | | - Irin P. Tom
- Department of Chemistry, University of Illinois Chicago, Chicago, IL, United States
| | - Xiaojing Yang
- Department of Chemistry, University of Illinois Chicago, Chicago, IL, United States
| | - Louison Dufour
- Ecology of Marine Plankton Team, UMR 7144 Adaptation and Diversity in the Marine Environment, Station Biologique, Sorbonne Université, CNRS, Roscoff, France
| | - Frédéric Partensky
- Ecology of Marine Plankton Team, UMR 7144 Adaptation and Diversity in the Marine Environment, Station Biologique, Sorbonne Université, CNRS, Roscoff, France
| | - Wendy M. Schluchter
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States
- *Correspondence: Wendy M. Schluchter,
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12
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Dranseikienė D, Balčiūnaitė-Murzienė G, Karosienė J, Morudov D, Juodžiukynienė N, Hudz N, Gerbutavičienė RJ, Savickienė N. Cyano-Phycocyanin: Mechanisms of Action on Human Skin and Future Perspectives in Medicine. PLANTS (BASEL, SWITZERLAND) 2022; 11:1249. [PMID: 35567250 PMCID: PMC9101960 DOI: 10.3390/plants11091249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/29/2022] [Accepted: 04/30/2022] [Indexed: 12/03/2022]
Abstract
Cyano-phycocyanin is one of the active pigments of the blue-green algae and is usually isolated from the filamentous cyanobacteria Arthrospira platensis Gomont (Spirulina). Due to its multiple physiological functions and non-toxicity, cyano-phycocyanin may be a potential substance for the topical treatment of various skin diseases. Considering that the conventional medicine faces drug resistance, insufficient efficacy and side effects, the plant origin compounds can act as an alternative option. Thus, the aim of this paper was to review the wound healing, antimicrobial, antioxidative, anti-inflammatory, antimelanogenic and anticancer properties and mechanisms of cyano-phycocyanin topical activities on human skin. Moreover, possible applications and biotechnological requirements for pharmaceutical forms of cyano-phycocyanin for the treatment of various skin diseases are discussed in this review.
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Affiliation(s)
- Daiva Dranseikienė
- Department of Pharmacognosy, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu av. 13, 50162 Kaunas, Lithuania;
| | - Gabrielė Balčiūnaitė-Murzienė
- Faculty of Pharmacy, Institute of Pharmaceutical Technologies, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu av. 13, 50162 Kaunas, Lithuania;
| | - Jūratė Karosienė
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Dmitrij Morudov
- Laboratory of Algology and Microbial Ecology, Nature Research Centre, Akademijos St. 2, 08412 Vilnius, Lithuania; (J.K.); (D.M.)
| | - Nomeda Juodžiukynienė
- Department of Veterinary Pathobiology, Faculty of Veterinary, Academy of Veterinary, Lithuanian University of Health Sciences, Tilzes St. 18, 47181 Kaunas, Lithuania;
| | - Nataliia Hudz
- Department of Drug Technology and Biopharmaceutics, Danylo Halytsky Lviv National Medical University, Pekarska St, 69, 79000 Lviv, Ukraine;
- Department of Pharmacy and Ecological Chemistry, University of Opole, Kopernika pl. 11a, 45-040 Opole, Poland
| | - Rima Jūratė Gerbutavičienė
- Department of Drug Technology and Social Pharmacy, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu av. 13, 50162 Kaunas, Lithuania;
| | - Nijolė Savickienė
- Department of Pharmacognosy, Faculty of Pharmacy, Academy of Medicine, Lithuanian University of Health Sciences, Sukileliu av. 13, 50162 Kaunas, Lithuania;
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13
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Wilson A, Muzzopappa F, Kirilovsky D. Elucidation of the essential amino acids involved in the binding of the cyanobacterial Orange Carotenoid Protein to the phycobilisome. BIOCHIMICA ET BIOPHYSICA ACTA. BIOENERGETICS 2022; 1863:148504. [PMID: 34619092 DOI: 10.1016/j.bbabio.2021.148504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023]
Abstract
The Orange Carotenoid Protein (OCP) is a soluble photoactive protein involved in cyanobacterial photoprotection. It is formed by the N-terminal domain (NTD) and C-terminal (CTD) domain, which establish interactions in the orange inactive form and share a ketocarotenoid molecule. Upon exposure to intense blue light, the carotenoid molecule migrates into the NTD and the domains undergo separation. The free NTD can then interact with the phycobilisome (PBS), the extramembrane cyanobacterial antenna, and induces thermal dissipation of excess absorbed excitation energy. The OCP and PBS amino acids involved in their interactions remain undetermined. To identify the OCP amino acids essential for this interaction, we constructed several OCP mutants (23) with modified amino acids located on different NTD surfaces. We demonstrated that only the NTD surface that establishes interactions with the CTD in orange OCP is involved in the binding of OCP to PBS. All amino acids surrounding the carotenoid β1 ring in the OCPR-NTD (L51, P56, G57, N104, I151, R155, N156) are important for binding OCP to PBS. Additionally, modification of the amino acids influences OCP photoactivation and/or recovery rates, indicating that they are also involved in the translocation of the carotenoid.
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Affiliation(s)
- Adjélé Wilson
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif sur Yvette, France.
| | - Fernando Muzzopappa
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif sur Yvette, France
| | - Diana Kirilovsky
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198 Gif sur Yvette, France.
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14
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Niu NN, Lu L, Peng PP, Fu ZJ, Miao D, Zhou M, Noy D, Zhao KH. The phycobilisome core-membrane linkers from Synechocystis sp. PCC 6803 and red-algae assemble in the same topology. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:1420-1431. [PMID: 34171163 DOI: 10.1111/tpj.15389] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 06/06/2021] [Accepted: 06/19/2021] [Indexed: 06/13/2023]
Abstract
The phycobilisomes (PBSs) of cyanobacteria and red-algae are unique megadaltons light-harvesting protein-pigment complexes that utilize bilin derivatives for light absorption and energy transfer. Recently, the high-resolution molecular structures of red-algal PBSs revealed how the multi-domain core-membrane linker (LCM ) specifically organizes the allophycocyanin subunits in the PBS's core. But, the topology of LCM in these structures was different than that suggested for cyanobacterial PBSs based on lower-resolution structures. Particularly, the model for cyanobacteria assumed that the Arm2 domain of LCM connects the two basal allophycocyanin cylinders, whereas the red-algal PBS structures revealed that Arm2 is partly buried in the core of one basal cylinder and connects it to the top cylinder. Here, we show by biochemical analysis of mutations in the apcE gene that encodes LCM , that the cyanobacterial and red-algal LCM topologies are actually the same. We found that removing the top cylinder linker domain in LCM splits the PBS core longitudinally into two separate basal cylinders. Deleting either all or part of the helix-loop-helix domain at the N-terminal end of Arm2, disassembled the basal cylinders and resulted in degradation of the part containing the terminal emitter, ApcD. Deleting the following 30 amino-acids loop severely affected the assembly of the basal cylinders, but further deletion of the amino-acids at the C-terminal half of Arm2 had only minor effects on this assembly. Altogether, the biochemical data are consistent with the red-algal LCM topology, suggesting that the PBS cores in cyanobacteria and red-algae assemble in the same way.
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Affiliation(s)
- Nan-Nan Niu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Lu Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Pan-Pan Peng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Zhi-Juan Fu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Dan Miao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Ming Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Dror Noy
- MIGAL-Galilee Research Institute, S. Industrial Zone, Kiryat Shmona, Israel
- Faculty of Sciences and Technology, Tel-Hai Academic College, Upper Galilee, Israel
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
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15
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Gwizdala M, Lebre PH, Maggs-Kölling G, Marais E, Cowan DA, Krüger TPJ. Sub-lithic photosynthesis in hot desert habitats. Environ Microbiol 2021; 23:3867-3880. [PMID: 33817951 DOI: 10.1111/1462-2920.15505] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 04/03/2021] [Indexed: 11/26/2022]
Abstract
In hyper-arid soil environments, photosynthetic microorganisms are largely restricted to hypolithic (sub-lithic) habitats: i.e., on the ventral surfaces of translucent pebbles in desert pavements. Here, we combined fluorometric, spectroscopic, biochemical and metagenomic approaches to investigate in situ the light transmission properties of quartz stones in the Namib Desert, and assess the photosynthetic activity of the underlying hypolithic cyanobacterial biofilms. Quartz pebbles greatly reduced the total photon flux to the ventral surface biofilms and filtered out primarily the short wavelength portion of the solar spectrum. Chlorophylls d and f were not detected in biofilm pigment extracts; however, hypolithic cyanobacterial communities showed some evidence of adaptation to sub-lithic conditions, including the prevalence of genes encoding Helical Carotenoid Proteins, which are associated with desiccation stress. Under water-saturated conditions, hypolithic communities showed no evidence of light stress, even when the quartz stones were exposed to full midday sunlight. This initial study creates a foundation for future in-situ and laboratory exploration of various adaptation mechanisms employed by photosynthetic organisms forming hypolithic microbial communities.
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Affiliation(s)
- Michal Gwizdala
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa.,Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | - Pedro H Lebre
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | | | - Eugene Marais
- Gobabeb-Namib Research Institute, Walvis Bay, Namibia
| | - Don A Cowan
- Centre for Microbial Ecology and Genomics, Department of Biochemistry, Genetics and Microbiology, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
| | - Tjaart P J Krüger
- Department of Physics, University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa.,Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Lynnwood Road, Pretoria, 0002, South Africa
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16
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Carrigee LA, Frick JP, Karty JA, Garczarek L, Partensky F, Schluchter WM. MpeV is a lyase isomerase that ligates a doubly linked phycourobilin on the β-subunit of phycoerythrin I and II in marine Synechococcus. J Biol Chem 2021; 296:100031. [PMID: 33154169 PMCID: PMC7948978 DOI: 10.1074/jbc.ra120.015289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 11/06/2022] Open
Abstract
Synechococcus cyanobacteria are widespread in the marine environment, as the extensive pigment diversity within their light-harvesting phycobilisomes enables them to utilize various wavelengths of light for photosynthesis. The phycobilisomes of Synechococcus sp. RS9916 contain two forms of the protein phycoerythrin (PEI and PEII), each binding two chromophores, green-light absorbing phycoerythrobilin and blue-light absorbing phycourobilin. These chromophores are ligated to specific cysteines via bilin lyases, and some of these enzymes, called lyase isomerases, attach phycoerythrobilin and simultaneously isomerize it to phycourobilin. MpeV is a putative lyase isomerase whose role in PEI and PEII biosynthesis is not clear. We examined MpeV in RS9916 using recombinant protein expression, absorbance spectroscopy, and tandem mass spectrometry. Our results show that MpeV is the lyase isomerase that covalently attaches a doubly linked phycourobilin to two cysteine residues (C50, C61) on the β-subunit of both PEI (CpeB) and PEII (MpeB). MpeV activity requires that CpeB or MpeB is first chromophorylated by the lyase CpeS (which adds phycoerythrobilin to C82). Its activity is further enhanced by CpeZ (a homolog of a chaperone-like protein first characterized in Fremyella diplosiphon). MpeV showed no detectable activity on the α-subunits of PEI or PEII. The mechanism by which MpeV links the A and D rings of phycourobilin to C50 and C61 of CpeB was also explored using site-directed mutants, revealing that linkage at the A ring to C50 is a critical step in chromophore attachment, isomerization, and stability. These data provide novel insights into β-PE biosynthesis and advance our understanding of the mechanisms guiding lyase isomerases.
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Affiliation(s)
- Lyndsay A Carrigee
- Department of Biological Sciences, University of New Orleans, New Orleans, Louisiana, USA
| | - Jacob P Frick
- Department of Biological Sciences, University of New Orleans, New Orleans, Louisiana, USA
| | - Jonathan A Karty
- Department of Chemistry, Indiana University, Bloomington, Indiana, USA
| | - Laurence Garczarek
- Ecology of Marine Plankton (ECOMAP) Team, Station Biologique, Sorbonne Université & CNRS, UMR 7144, Roscoff, France
| | - Frédéric Partensky
- Ecology of Marine Plankton (ECOMAP) Team, Station Biologique, Sorbonne Université & CNRS, UMR 7144, Roscoff, France
| | - Wendy M Schluchter
- Department of Biological Sciences, University of New Orleans, New Orleans, Louisiana, USA.
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17
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Mishima K, Shoji M, Umena Y, Boero M, Shigeta Y. Role of the Propionic Acid Side-Chain of C-Phycocyanin Chromophores in the Excited States for the Photosynthesis Process. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kenji Mishima
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Mitsuo Shoji
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasufumi Umena
- Department of Physiology, Division of Biophysics, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Mauro Boero
- University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS, UMR 7504, 23 rue du Loess, F-67034 France
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
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18
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Puzorjov A, McCormick AJ. Phycobiliproteins from extreme environments and their potential applications. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:3827-3842. [PMID: 32188986 DOI: 10.1093/jxb/eraa139] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/13/2020] [Indexed: 05/18/2023]
Abstract
The light-harvesting phycobilisome complex is an important component of photosynthesis in cyanobacteria and red algae. Phycobilisomes are composed of phycobiliproteins, including the blue phycobiliprotein phycocyanin, that are considered high-value products with applications in several industries. Remarkably, several cyanobacteria and red algal species retain the capacity to harvest light and photosynthesise under highly selective environments such as hot springs, and flourish in extremes of pH and elevated temperatures. These thermophilic organisms produce thermostable phycobiliproteins, which have superior qualities much needed for wider adoption of these natural pigment-proteins in the food, textile, and other industries. Here we review the available literature on the thermostability of phycobilisome components from thermophilic species and discuss how a better appreciation of phycobiliproteins from extreme environments will benefit our fundamental understanding of photosynthetic adaptation and could provide a sustainable resource for several industrial processes.
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Affiliation(s)
- Anton Puzorjov
- SynthSys and Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
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19
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Effect of Lagoon and Sea Water Depth on Gracilaria gracilis Growth and Biochemical Composition in the Northeast of Tunisia. Sci Rep 2020; 10:10014. [PMID: 32572043 PMCID: PMC7308321 DOI: 10.1038/s41598-020-66003-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/11/2020] [Indexed: 11/10/2022] Open
Abstract
This study evaluated the growth and biochemical composition of farming Gracilaria gracilis (Stackhouse) M. Steentoft, L. M. Irvine & W. F. Farnham in the Bizerte Lagoon (BL) and Bizerte Bay (BB) in the North Coast of Tunisia, using lantern nets. Effects of site and depth on alga daily growth rate (DGR) and biochemical composition were investigated. The DGR was affected by culture site (1.42 ± 0.65% day−1 and 1.19 ± 0.34% day−1 for the BL and the BB respectively). Agar yield, was higher (p < 0.05) in the BB than the BL (23.31 ± 2.64% vs. 19.19 ± 2.32%) with a higher (p < 0.05) 3,6-anhydrogalactose (3,6-AG) contents (41.37 ± 3.68% vs 23.30 ± 5.40%) and a lower (p < 0.05) sulphate degree (6 ± 2.00% vs 8.80 ± 0.86%). The proteins contents were independent of the site and depth of culture (20.74 ± 7.22% and 22.02 ± 6.34% for the BL and the BB respectively). R-phycoerythrin (R-PE) contents were significantly higher (p < 0.05) in the BB (0.86 ± 0.31 mg g−1) than those obtained in the BL (0.33 ± 0.12 mg g−1). The salinity, transparency, nitrate and ammonium were monitored in both sites, and their influences were discussed. Our results suggest that G. gracilis cultured in Bizerte Bay can be used in a cascading biorefinery approach.
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20
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Hu PP, Hou JY, Xu YL, Niu NN, Zhao C, Lu L, Zhou M, Scheer H, Zhao KH. The role of lyases, NblA and NblB proteins and bilin chromophore transfer in restructuring the cyanobacterial light-harvesting complex ‡. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:529-540. [PMID: 31820831 DOI: 10.1111/tpj.14647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Phycobilisomes are large light-harvesting complexes attached to the stromal side of thylakoids in cyanobacteria and red algae. They can be remodeled or degraded in response to changing light and nutritional status. Both the core and the peripheral rods of phycobilisomes contain biliproteins. During biliprotein biosynthesis, open-chain tetrapyrrole chromophores are attached covalently to the apoproteins by dedicated lyases. Another set of non-bleaching (Nb) proteins has been implicated in phycobilisome degradation, among them NblA and NblB. We report in vitro experiments with lyases, biliproteins and NblA/B which imply that the situation is more complex than currently discussed: lyases can also detach the chromophores and NblA and NblB can modulate lyase-catalyzed binding and detachment of chromophores in a complex fashion. We show: (i) NblA and NblB can interfere with chromophorylation as well as chromophore detachment of phycobiliprotein, they are generally inhibitors but in some cases enhance the reaction; (ii) NblA and NblB promote dissociation of whole phycobilisomes, cores and, in particular, allophycocyanin trimers; (iii) while NblA and NblB do not interact with each other, both interact with lyases, apo- and holo-biliproteins; (iv) they promote synergistically the lyase-catalyzed chromophorylation of the β-subunit of the major rod component, CPC; and (v) they modulate lyase-catalyzed and lyase-independent chromophore transfers among biliproteins, with the core protein, ApcF, the rod protein, CpcA, and sensory biliproteins (phytochromes, cyanobacteriochromes) acting as potential traps. The results indicate that NblA/B can cooperate with lyases in remodeling the phycobilisomes to balance the metabolic requirements of acclimating their light-harvesting capacity without straining the overall metabolic economy of the cell.
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Affiliation(s)
- Ping-Ping Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Jian-Yun Hou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Ya-Li Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Nan-Nan Niu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Cheng Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Lu Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Ming Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Hugo Scheer
- Department Biologie I, Universität München, Menzinger Str. 67, D-80638, München, Germany
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, 430070, Wuhan, China
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21
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Akhtar P, Biswas A, Petrova N, Zakar T, van Stokkum IHM, Lambrev PH. Time-resolved fluorescence study of excitation energy transfer in the cyanobacterium Anabaena PCC 7120. PHOTOSYNTHESIS RESEARCH 2020; 144:247-259. [PMID: 32076913 PMCID: PMC7203587 DOI: 10.1007/s11120-020-00719-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 02/07/2020] [Indexed: 05/28/2023]
Abstract
Excitation energy transfer (EET) and trapping in Anabaena variabilis (PCC 7120) intact cells, isolated phycobilisomes (PBS) and photosystem I (PSI) complexes have been studied by picosecond time-resolved fluorescence spectroscopy at room temperature. Global analysis of the time-resolved fluorescence kinetics revealed two lifetimes of spectral equilibration in the isolated PBS, 30-35 ps and 110-130 ps, assigned primarily to energy transfer within the rods and between the rods and the allophycocyanin core, respectively. An additional intrinsic kinetic component with a lifetime of 500-700 ps was found, representing non-radiative decay or energy transfer in the core. Isolated tetrameric PSI complexes exhibited biexponential fluorescence decay kinetics with lifetimes of about 10 ps and 40 ps, representing equilibration between the bulk antenna chlorophylls with low-energy "red" states and trapping of the equilibrated excitations, respectively. The cascade of EET in the PBS and in PSI could be resolved in intact filaments as well. Virtually all energy absorbed by the PBS was transferred to the photosystems on a timescale of 180-190 ps.
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Affiliation(s)
- Parveen Akhtar
- Biological Research Centre, Szeged, Temesvári krt. 62, Szeged, 6726, Hungary
- ELI-ALPS, ELI-HU Nonprofit Ltd., Wolfgang Sandner u. 3, Szeged, 6728, Hungary
| | - Avratanu Biswas
- Biological Research Centre, Szeged, Temesvári krt. 62, Szeged, 6726, Hungary
- Doctoral School of Biology, University of Szeged, Közép Fasor 52, Szeged, 6726, Hungary
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
| | - Nia Petrova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad G. Bontchev Str., Bl. 21, 1113, Sofia, Bulgaria
| | - Tomas Zakar
- Biological Research Centre, Szeged, Temesvári krt. 62, Szeged, 6726, Hungary
| | - Ivo H M van Stokkum
- Department of Physics and Astronomy and LaserLaB, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
| | - Petar H Lambrev
- Biological Research Centre, Szeged, Temesvári krt. 62, Szeged, 6726, Hungary.
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22
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Wahadoszamen M, Krüger TPJ, Ara AM, van Grondelle R, Gwizdala M. Charge transfer states in phycobilisomes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2020; 1861:148187. [PMID: 32173383 DOI: 10.1016/j.bbabio.2020.148187] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/17/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
Abstract
Phycobilisomes (PBs) absorb light and supply downstream photosynthetic processes with excitation energy in many cyanobacteria and algae. In response to a sudden increase in light intensity, excess excitation energy is photoprotectively dissipated in PBs by means of the orange carotenoid protein (OCP)-related mechanism or via a light-activated intrinsic decay channel. Recently, we have identified that both mechanisms are associated with far-red emission states. Here, we investigate the far-red states involved with the light-induced intrinsic mechanism by exploring the energy landscape and electro-optical properties of the pigments in PBs. While Stark spectroscopy showed that the far-red states in PBs exhibit a strong charge-transfer (CT) character at cryogenic temperatures, single molecule spectroscopy revealed that CT states should also be present at room temperature. Owing to the strong environmental sensitivity of CT states, the knowledge gained from this study may contribute to the design of a new generation of fluorescence markers.
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Affiliation(s)
- Md Wahadoszamen
- Department of Physics, University of Dhaka, Dhaka 1000, Bangladesh
| | - Tjaart P J Krüger
- Department of Physics, University of Pretoria, Pretoria 0023, South Africa
| | - Anjue Mane Ara
- Department of Physics, Jagannath University, Dhaka 1100, Bangladesh
| | - Rienk van Grondelle
- Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, the Netherlands
| | - Michal Gwizdala
- Department of Physics, University of Pretoria, Pretoria 0023, South Africa; Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam 1081 HV, the Netherlands.
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23
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Mascoli V, Novoderezhkin V, Liguori N, Xu P, Croce R. Design principles of solar light harvesting in plants: Functional architecture of the monomeric antenna CP29. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2020; 1861:148156. [DOI: 10.1016/j.bbabio.2020.148156] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/13/2019] [Accepted: 01/22/2020] [Indexed: 11/16/2022]
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24
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Calzadilla PI, Kirilovsky D. Revisiting cyanobacterial state transitions. Photochem Photobiol Sci 2020; 19:585-603. [DOI: 10.1039/c9pp00451c] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Critical evaluation of “new” and “old” models of cyanobacterial state transitions. Phycobilisome and membrane contributions to this mechanism are addressed. The signaling transduction pathway is discussed.
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Affiliation(s)
- Pablo I. Calzadilla
- Université Paris-Saclay
- CNRS
- CEA
- Institute for Integrative Biology of the Cell (I2BC)
- 91198 Gif sur Yvette
| | - Diana Kirilovsky
- Université Paris-Saclay
- CNRS
- CEA
- Institute for Integrative Biology of the Cell (I2BC)
- 91198 Gif sur Yvette
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25
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Kirilovsky D. Modulating Energy Transfer from Phycobilisomes to Photosystems: State Transitions and OCP-Related Non-Photochemical Quenching. PHOTOSYNTHESIS IN ALGAE: BIOCHEMICAL AND PHYSIOLOGICAL MECHANISMS 2020. [DOI: 10.1007/978-3-030-33397-3_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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26
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Toyoshima M, Toya Y, Shimizu H. Flux balance analysis of cyanobacteria reveals selective use of photosynthetic electron transport components under different spectral light conditions. PHOTOSYNTHESIS RESEARCH 2020; 143:31-43. [PMID: 31625072 DOI: 10.1007/s11120-019-00678-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 10/01/2019] [Indexed: 05/05/2023]
Abstract
Cyanobacteria acclimate and adapt to changing light conditions by controlling the energy transfer between photosystem I (PSI) and II (PSII) and pigment composition. Photosynthesis is driven by balancing the excitation between PSI and PSII. To predict the detailed electron transfer flux of cyanobacteria, we refined the photosynthesis-related reactions in our previously reconstructed genome-scale model. Two photosynthetic bacteria, Arthrospira and Synechocystis, were used as models. They were grown under various spectral light conditions and flux balance analysis (FBA) was performed using photon uptake fluxes into PSI and PSII, which were converted from each light spectrum by considering the photoacclimation of pigments and the distribution ratio of phycobilisome to PSI and PSII. In Arthrospira, the FBA was verified with experimental data using six types of light-emitting diodes (White, Blue, Green, Yellow, Red1, and Red2). FBA predicted the cell growth of Synechocystis for the LEDs, excepting Red2. In an FBA simulation, cells used respiratory terminal oxidases and two NADH dehydrogenases (NDH-1 and NDH-2) to balance the PSI and PSII excitations depending on the light conditions. FBA simulation with our refined model functionally implicated NDH-1 and NDH-2 as a component of cyclic electron transport in the varied light environments.
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Affiliation(s)
- Masakazu Toyoshima
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yoshihiro Toya
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Shimizu
- Department of Bioinformatic Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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27
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Hou YN, Ding WL, Hu JL, Jiang XX, Tan ZZ, Zhao KH. Very Bright Phycoerythrobilin Chromophore for Fluorescence Biolabeling. Chembiochem 2019; 20:2777-2783. [PMID: 31145526 DOI: 10.1002/cbic.201900273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Indexed: 11/07/2022]
Abstract
Biliproteins have extended the spectral range of fluorescent proteins into the far-red (FR) and near-infrared (NIR) regions. These FR and NIR fluorescent proteins are suitable for the bioimaging of mammalian tissues and are indispensable for multiplex labeling. Their application, however, presents considerable challenges in increasing their brightness, while maintaining emission in FR regions and oligomerization of monomers. Two fluorescent biliprotein triads, termed BDFP1.2/1.6:3.3:1.2/1.6, are reported. In mammalian cells, these triads not only have extremely high brightness in the FR region, but also have monomeric oligomerization. The BDFP1.2 and BDFP1.6 domains covalently bind to biliverdin, which is accessible in most cells. The BDFP3.3 domain noncovalently binds phycoerythrobilin that is added externally. A new method of replacing phycoerythrobilin with proteolytically digested BDFP3.3 facilitates this labeling. BDFP3.3 has a very high fluorescence quantum yield of 66 %, with maximal absorbance at λ=608 nm and fluorescence at λ=619 nm. In BDFP1.2/1.6:3.3:1.2/1.6, the excitation energy that is absorbed in the red region by phycoerythrobilin in the BDFP3.3 domain is transferred to biliverdin in the two BDFP1.2 or BDFP1.6 domains and fluoresces at λ≈670 nm. The combination of BDFP3.3 and BDFP1.2/1.6:3.3:1.2/1.6 can realize dual-color labeling. Labeling various proteins by fusion to these new fluorescent biliproteins is demonstrated in prokaryotic and mammalian cells.
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Affiliation(s)
- Ya-Nan Hou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Wen-Long Ding
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Ji-Ling Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Xiang-Xiang Jiang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Zi-Zhu Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P. R. China
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28
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Wamhoff EC, Banal JL, Bricker WP, Shepherd TR, Parsons MF, Veneziano R, Stone MB, Jun H, Wang X, Bathe M. Programming Structured DNA Assemblies to Probe Biophysical Processes. Annu Rev Biophys 2019; 48:395-419. [PMID: 31084582 PMCID: PMC7035826 DOI: 10.1146/annurev-biophys-052118-115259] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Structural DNA nanotechnology is beginning to emerge as a widely accessible research tool to mechanistically study diverse biophysical processes. Enabled by scaffolded DNA origami in which a long single strand of DNA is weaved throughout an entire target nucleic acid assembly to ensure its proper folding, assemblies of nearly any geometric shape can now be programmed in a fully automatic manner to interface with biology on the 1-100-nm scale. Here, we review the major design and synthesis principles that have enabled the fabrication of a specific subclass of scaffolded DNA origami objects called wireframe assemblies. These objects offer unprecedented control over the nanoscale organization of biomolecules, including biomolecular copy numbers, presentation on convex or concave geometries, and internal versus external functionalization, in addition to stability in physiological buffer. To highlight the power and versatility of this synthetic structural biology approach to probing molecular and cellular biophysics, we feature its application to three leading areas of investigation: light harvesting and nanoscale energy transport, RNA structural biology, and immune receptor signaling, with an outlook toward unique mechanistic insight that may be gained in these areas in the coming decade.
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Affiliation(s)
- Eike-Christian Wamhoff
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - James L Banal
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - William P Bricker
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Tyson R Shepherd
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Molly F Parsons
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Rémi Veneziano
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Matthew B Stone
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Hyungmin Jun
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Xiao Wang
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
| | - Mark Bathe
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;
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29
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Zhao BQ, Ding WL, Tan ZZ, Tang QY, Zhao KH. A Large Stokes Shift Fluorescent Protein Constructed from the Fusion of Red Fluorescent mCherry and Far-Red Fluorescent BDFP1.6. Chembiochem 2019; 20:1167-1173. [PMID: 30609201 DOI: 10.1002/cbic.201800695] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Indexed: 01/17/2023]
Abstract
Phycobiliproteins are constituents of phycobilisomes that can harvest orange, red, and far-red light for photosynthesis in cyanobacteria and red algae. Phycobiliproteins in the phycobilisome cores, such as allophycocyanins, absorb far-red light to funnel energy to the reaction centers. Therefore, allophycocyanin subunits have been engineered as far-red fluorescent proteins, such as BDFP1.6. However, most current fluorescent probes have small Stokes shifts, which limit their applications in multicolor bioimaging. mCherry is an excellent fluorescent protein that has maximal emittance in the red spectral range and a high fluorescence quantum yield, and thus, can be used as a donor for energy transfer to a far-red acceptor, such as BDFP1.6, by FRET. In this study, mCherry was fused with BDFP1.6, which resulted in a highly bright far-red fluorescent protein, BDFP2.0, with a large Stokes shift (≈79 nm). The excitation energy was absorbed maximally at 587 nm by mCherry and transferred to BDFP1.6 efficiently; thus emitting strong far-red fluorescence maximally at 666 nm. The effective brightness of BDFP2.0 in mammalian cells was 4.2-fold higher than that of iRFP670, which has been reported as the brightest far-red fluorescent protein. The large Stokes shift of BDFP2.0 facilitates multicolor bioimaging. Therefore, BDFP2.0 not only biolabels mammalian cells, including human cells, but also biolabels various intracellular components in dual-color imaging.
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Affiliation(s)
- Bao-Qing Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Wen-Long Ding
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Zi-Zhu Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Qi-Ying Tang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, P.R. China
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30
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Calzadilla PI, Muzzopappa F, Sétif P, Kirilovsky D. Different roles for ApcD and ApcF in Synechococcus elongatus and Synechocystis sp. PCC 6803 phycobilisomes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2019; 1860:488-498. [PMID: 31029593 DOI: 10.1016/j.bbabio.2019.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 10/27/2022]
Abstract
The phycobilisome, the cyanobacterial light harvesting complex, is a huge phycobiliprotein containing extramembrane complex, formed by a core from which rods radiate. The phycobilisome has evolved to efficiently absorb sun energy and transfer it to the photosystems via the last energy acceptors of the phycobilisome, ApcD and ApcE. ApcF also affects energy transfer by interacting with ApcE. In this work we studied the role of ApcD and ApcF in energy transfer and state transitions in Synechococcus elongatus and Synechocystis PCC6803. Our results demonstrate that these proteins have different roles in both processes in the two strains. The lack of ApcD and ApcF inhibits state transitions in Synechocystis but not in S. elongatus. In addition, lack of ApcF decreases energy transfer to both photosystems only in Synechocystis, while the lack of ApcD alters energy transfer to photosystem I only in S. elongatus. Thus, conclusions based on results obtained in one cyanobacterial strain cannot be systematically transferred to other strains and the putative role(s) of phycobilisomes in state transitions need to be reconsidered.
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Affiliation(s)
- Pablo I Calzadilla
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, 91198 Gif sur Yvette, France
| | - Fernando Muzzopappa
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, 91198 Gif sur Yvette, France
| | - Pierre Sétif
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, 91198 Gif sur Yvette, France
| | - Diana Kirilovsky
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Université Paris-Saclay, 91198 Gif sur Yvette, France.
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31
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Zhao M, Sun L, Fu X, Chen M. Phycoerythrin-phycocyanin aggregates and phycoerythrin aggregates from phycobilisomes of the marine red alga Polysiphonia urceolata. Int J Biol Macromol 2019; 126:685-696. [DOI: 10.1016/j.ijbiomac.2018.12.109] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/29/2018] [Accepted: 12/13/2018] [Indexed: 10/27/2022]
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32
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Li XD, Zhou LJ, Zhao C, Lu L, Niu NN, Han JX, Zhao KH. Optimization of expression of orange carotenoid protein in Escherichia coli. Protein Expr Purif 2019; 156:66-71. [DOI: 10.1016/j.pep.2019.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 12/20/2022]
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33
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Zlenko DV, Elanskaya IV, Lukashev EP, Bolychevtseva YV, Suzina NE, Pojidaeva ES, Kononova IA, Loktyushkin AV, Stadnichuk IN. Role of the PB-loop in ApcE and phycobilisome core function in cyanobacterium Synechocystis sp. PCC 6803. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2019; 1860:155-166. [DOI: 10.1016/j.bbabio.2018.10.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/04/2018] [Accepted: 10/29/2018] [Indexed: 11/30/2022]
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34
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Light limitation increases multidimensional trait evenness in phytoplankton populations. ISME JOURNAL 2019; 13:1159-1167. [PMID: 30617295 DOI: 10.1038/s41396-018-0320-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/10/2018] [Accepted: 11/04/2018] [Indexed: 11/08/2022]
Abstract
Individual-level variation arising from responses to environmental gradients influences population and community dynamics. How such responses empirically relate to the mechanisms that govern species coexistence is, however, poorly understood. Previous results from l ake phytoplankton communities suggested that the evenness of organismal traits in multiple dimensions increases with resource limitation, possibly due to resource partitioning at the individual level. Here we experimentally tested the emergence of this pattern by growing two phytoplankton species (Pseudokirchneriella subcapitata and Microcystis aeruginosa) under a gradient of light intensity, in monoculture and jointly. Under low light (resource) conditions, the populations diversified into a wide range of phenotypes, which were evenly distributed in multidimensional trait space (defined by four pigment-related trait dimensions), consistent with the observed field pattern. Our interpretation is that under conditions of light limitation, individual phytoplankton cells alter photosynthetic traits to reduce overlap in light acquisition, acquiring unexploited resources and thereby likely maximising individual success. Our results provide prime experimental evidence that resource limitation increases the evenness of conspecific and heterospecific microbial phenotypes along trait axes, advancing our understanding of trait-based coexistence.
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35
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Hou YN, Ding WL, Jiang SP, Miao D, Tan ZZ, Hu JL, Scheer H, Zhao KH. Bright near-infrared fluorescence bio-labeling with a biliprotein triad. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:277-284. [PMID: 30471307 DOI: 10.1016/j.bbamcr.2018.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/22/2018] [Accepted: 11/16/2018] [Indexed: 10/27/2022]
Abstract
Biliproteins have extended the spectral range of fluorescent proteins into the near-infrared region (NIR, 700-770 nm) of maximal transmission of most tissues and are also favorable for multiplex labeling. Their application, however, presents considerable challenges to increase their stability under physiological conditions and, in particular, to increase their brightness while maintaining the emission in near-infrared regions: their fluorescence yield generally decreases with increasing wavelengths, and their effective brightness depends strongly on the environmental conditions. We report a fluorescent biliprotein triad, termed BDFP1.1:3.1:1.1, that combines a large red-shift (722 nm) with high brightness in mammalian cells and high stability under changing environmental conditions. It is fused from derivatives of the phycobilisome core subunits, ApcE2 and ApcF2. These two subunits are induced by far-red light (FR, 650-700 nm) in FR acclimated cyanobacteria. Two BDFP1.1 domains engineered from ApcF2 covalently bind biliverdin that is accessible in most cells. The soluble BDFP3 domain, engineered from ApcE2, binds phytochromobilin non-covalently, generating BDFP3.1. This phytochromobilin chromophore was added externally; it is readily generated by an improved synthesis in E. coli and subsequent extraction. Excitation energy absorbed in the FR by covalently bound biliverdins in the two BDFP1.1 domains is transferred via fluorescence resonance energy transfer to the non-covalently bound phytochromobilin in the BDFP3.1 domain fluorescing in the NIR around 720 nm. Labeling of a variety of proteins by fusion to the biliprotein triad is demonstrated in prokaryotic and mammalian cells, including human cell lines.
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Affiliation(s)
- Ya-Nan Hou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wen-Long Ding
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Su-Ping Jiang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Dan Miao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zi-Zhu Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Ji-Ling Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hugo Scheer
- Department Biologie I, Universität München, Menzinger Str. 67, D-80638 München, Germany
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, PR China.
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36
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Herrera-Salgado P, Leyva-Castillo LE, Ríos-Castro E, Gómez-Lojero C. Complementary chromatic and far-red photoacclimations in Synechococcus ATCC 29403 (PCC 7335). I: The phycobilisomes, a proteomic approach. PHOTOSYNTHESIS RESEARCH 2018; 138:39-56. [PMID: 29943359 DOI: 10.1007/s11120-018-0536-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
Synechococcus ATCC 29403 (PCC 7335) is a unicellular cyanobacterium isolated from Puerto Peñasco, Sonora Mexico. This cyanobacterium performs complementary chromatic acclimation (CCA), far-red light photoacclimation (FaRLiP), and nitrogen fixation. The Synechococcus PCC 7335 genome contains at least 31 genes for proteins of the phycobilisome (PBS). Nine constitutive genes were expressed when cells were grown under white or red lights and the resulting proteins were identified by mass spectrometry in isolated PBS. Five inducible genes were expressed under white light, and phycoerythrin subunits and associated linker proteins were detected. The proteins of five inducible genes expressed under red light were identified, the induced phycocyanin subunits, two rod linkers and the rod-capping linker. The five genes for FaRLiP phycobilisomes were expressed under far-red light together with the apcF gene, and the proteins were identified by mass spectrometry after isoelectric focusing and SDS-PAGE. Based on in silico analysis, Phylogenetic trees, and the observation of a highly conserved amino acid sequence in far-red light absorbing alpha allophycoproteins encoded by FaRLiP gene cluster, we propose a new nomenclature for the genes. Based on a ratio of ApcG2/ApcG3 of six, a model with the arrangement of the allophycocyanin trimers of the core is proposed.
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Affiliation(s)
- Priscila Herrera-Salgado
- Departamento de Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, Mexico City, Mexico
| | - Lourdes E Leyva-Castillo
- Departamento de Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, Mexico City, Mexico
| | - Emmanuel Ríos-Castro
- Departamento de Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, Mexico City, Mexico
| | - Carlos Gómez-Lojero
- Departamento de Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, Mexico City, Mexico.
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37
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Sonani RR, Gardiner A, Rastogi RP, Cogdell R, Robert B, Madamwar D. Site, trigger, quenching mechanism and recovery of non-photochemical quenching in cyanobacteria: recent updates. PHOTOSYNTHESIS RESEARCH 2018; 137:171-180. [PMID: 29574660 DOI: 10.1007/s11120-018-0498-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/08/2018] [Indexed: 06/08/2023]
Abstract
Cyanobacteria exhibit a novel form of non-photochemical quenching (NPQ) at the level of the phycobilisome. NPQ is a process that protects photosystem II (PSII) from possible highlight-induced photo-damage. Although significant advancement has been made in understanding the NPQ, there are still some missing details. This critical review focuses on how the orange carotenoid protein (OCP) and its partner fluorescence recovery protein (FRP) control the extent of quenching. What is and what is not known about the NPQ is discussed under four subtitles; where does exactly the site of quenching lie? (site), how is the quenching being triggered? (trigger), molecular mechanism of quenching (quenching) and recovery from quenching. Finally, a recent working model of NPQ, consistent with recent findings, is been described.
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Affiliation(s)
- Ravi R Sonani
- Post-Graduate Department of Biosciences, Sardar Patel University, Bakrol, Anand, Gujarat, 388315, India.
- Institute of Molecular, Cell and System Biology, University of Glasgow, Glasgow, G12 8TA, UK.
- CEA, Institute of Biology and Technology of Saclay, CNRS, 91191, Gif/Yvette, France.
- School of Sciences, P. P. Savani University, Dhamdod, Kosamba, Surat, Gujarat, 394125, India.
| | - Alastair Gardiner
- Institute of Molecular, Cell and System Biology, University of Glasgow, Glasgow, G12 8TA, UK
| | - Rajesh P Rastogi
- Post-Graduate Department of Biosciences, Sardar Patel University, Bakrol, Anand, Gujarat, 388315, India
| | - Richard Cogdell
- Institute of Molecular, Cell and System Biology, University of Glasgow, Glasgow, G12 8TA, UK.
| | - Bruno Robert
- CEA, Institute of Biology and Technology of Saclay, CNRS, 91191, Gif/Yvette, France.
| | - Datta Madamwar
- Post-Graduate Department of Biosciences, Sardar Patel University, Bakrol, Anand, Gujarat, 388315, India.
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Xiang R, Shi J, Zhang H, Dong C, Liu L, Fu J, He X, Yan Y, Wu Z. Chlorophyll a fluorescence and transcriptome reveal the toxicological effects of bisphenol A on an invasive cyanobacterium, Cylindrospermopsis raciborskii. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 200:188-196. [PMID: 29775926 DOI: 10.1016/j.aquatox.2018.05.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/07/2018] [Accepted: 05/07/2018] [Indexed: 06/08/2023]
Abstract
Bisphenol A has attracted worldwide attention due to its harmful effects on humans, animals and plants. In this study, the toxicological effects of BPA on Cylindrospermopsis raciborskii were assessed based on chlorophyll a fluorescence and transcriptome analyses. The results showed that the growth of C. raciborskii was significantly inhibited when BPA exceeded 0.1 mg L-1. A marked rise of phase J was observed at a concentration greater than 0.1 mg L-1, while a K phase appeared at 20 mg L-1. The chlorophyll a fluorescence parameters of RC/CS0, F0, φP0, φE0, and ψ0, underwent a significant decline under all treatments of BPA, whereas a significant increase in both VJ and M0 occurred under all concentrations of BPA. Additionally, ABS/RC and DIo/RC markedly increased at 10 mg L-1 and 20 mg L-1. The transcriptome analysis revealed that the genes of photosynthesis, including psbA, psbB, psbC, psbD, apcA, apcB, cpcA, and cpcB, as well as those of chlorophyll and carotenoid biosynthesis, namely hemN, acsF, chlL, chlN, chlP, crtB, pds, were all down-regulated. Moreover, BPA also inhibited the oxidative phosphorylation, glycolysis/gluconeogenesis, citrate cycle (TCA cycle), and fatty acid metabolism in C. raciborskii. Taken together, these results suggest BPA can negatively affect the expression of multiple genes and the vital energy metabolism process to arrest the growth and photosynthesis of C. raciborskii.
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Affiliation(s)
- Rong Xiang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Junqiong Shi
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Hongbo Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Congcong Dong
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Li Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - JunKe Fu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Xinyu He
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Yanjun Yan
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China
| | - Zhongxing Wu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Science, Southwest University, Chongqing, 400715, PR China.
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Gwizdala M, Botha JL, Wilson A, Kirilovsky D, van Grondelle R, Krüger TPJ. Switching an Individual Phycobilisome Off and On. J Phys Chem Lett 2018; 9:2426-2432. [PMID: 29688018 DOI: 10.1021/acs.jpclett.8b00767] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Photosynthetic organisms have found various smart ways to cope with unexpected changes in light conditions. In many cyanobacteria, the lethal effects of a sudden increase in light intensity are mitigated mainly by the interaction between phycobilisomes (PBs) and the orange carotenoid protein (OCP). The latter senses high light intensities by means of photoactivation and triggers thermal energy dissipation from the PBs. Due to the brightness of their emission, PBs can be characterized at the level of individual complexes. Here, energy dissipation from individual PBs was reversibly switched on and off using only light and OCP. We reveal the presence of quasistable intermediate states during the binding and unbinding of OCP to PB, with a spectroscopic signature indicative of transient decoupling of some of the PB rods during docking of OCP. Real-time control of emission from individual PBs has the potential to contribute to the development of new super-resolution imaging techniques.
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Affiliation(s)
- Michal Gwizdala
- Department of Physics and Astronomy , Faculty of Sciences, VU University , De Boelelaan 1081 , 1081 HV Amsterdam , The Netherlands
- Department of Physics , Faculty of Natural and Agricultural Sciences, University of Pretoria , Private bag X20, Hatfield 0028 , South Africa
| | - Joshua L Botha
- Department of Physics , Faculty of Natural and Agricultural Sciences, University of Pretoria , Private bag X20, Hatfield 0028 , South Africa
| | - Adjélé Wilson
- Unité de Recherche Associée 2096 , Centre National de la Recherche Scientifique , Service de Bioénergétique, 91191 Gif sur Yvette , France
| | - Diana Kirilovsky
- Unité de Recherche Associée 2096 , Centre National de la Recherche Scientifique , Service de Bioénergétique, 91191 Gif sur Yvette , France
| | - Rienk van Grondelle
- Department of Physics and Astronomy , Faculty of Sciences, VU University , De Boelelaan 1081 , 1081 HV Amsterdam , The Netherlands
| | - Tjaart P J Krüger
- Department of Physics , Faculty of Natural and Agricultural Sciences, University of Pretoria , Private bag X20, Hatfield 0028 , South Africa
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Elanskaya IV, Zlenko DV, Lukashev EP, Suzina NE, Kononova IA, Stadnichuk IN. Phycobilisomes from the mutant cyanobacterium Synechocystis sp. PCC 6803 missing chromophore domain of ApcE. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018; 1859:280-291. [DOI: 10.1016/j.bbabio.2018.01.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 12/22/2017] [Accepted: 01/16/2018] [Indexed: 10/18/2022]
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Gwizdala M, Krüger TPJ, Wahadoszamen M, Gruber JM, van Grondelle R. Phycocyanin: One Complex, Two States, Two Functions. J Phys Chem Lett 2018; 9:1365-1371. [PMID: 29504765 DOI: 10.1021/acs.jpclett.8b00621] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Solar energy captured by pigments embedded in light-harvesting complexes can be transferred to neighboring pigments, dissipated, or emitted as fluorescence. Only when it reaches a reaction center is the excitation energy stabilized in the form of a charge separation and converted into chemical energy. Well-directed and regulated energy transfer within the network of pigments is therefore of crucial importance for the success of the photosynthetic processes. Using single-molecule spectroscopy, we show that phycocyanin can dynamically switch between two spectrally distinct states originating from two different conformations. Unexpectedly, one of the two states has a red-shifted emission spectrum. This state is not involved in energy dissipation; instead, we propose that it is involved in direct energy transfer to photosystem I. Finally, our findings suggest that the function of linker proteins in phycobilisomes is to stabilize one state or the other, thus controlling the light-harvesting functions of phycocyanin.
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Affiliation(s)
- Michal Gwizdala
- Department of Physics , University of Pretoria , Pretoria 0023 , South Africa
- Department of Physics and Astronomy , Vrije Universiteit Amsterdam , Amsterdam 1081 HV , The Netherlands
| | - Tjaart P J Krüger
- Department of Physics , University of Pretoria , Pretoria 0023 , South Africa
| | - Md Wahadoszamen
- Department of Physics and Astronomy , Vrije Universiteit Amsterdam , Amsterdam 1081 HV , The Netherlands
- Department of Physics , University of Dhaka , Dhaka 1000 , Bangladesh
| | - J Michael Gruber
- Department of Physics and Astronomy , Vrije Universiteit Amsterdam , Amsterdam 1081 HV , The Netherlands
| | - Rienk van Grondelle
- Department of Physics and Astronomy , Vrije Universiteit Amsterdam , Amsterdam 1081 HV , The Netherlands
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Acuña AM, Lemaire C, van Grondelle R, Robert B, van Stokkum IHM. Energy transfer and trapping in Synechococcus WH 7803. PHOTOSYNTHESIS RESEARCH 2018; 135:115-124. [PMID: 29030777 PMCID: PMC5784009 DOI: 10.1007/s11120-017-0451-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 09/26/2017] [Indexed: 05/28/2023]
Abstract
Excitation energy transfer (EET) and trapping in Synechococcus WH 7803 whole cells and isolated photosystem I (PSI) complexes have been studied by time-resolved emission spectroscopy at room temperature (RT) and at 77 K. With the help of global and target analysis, the pathways of EET and the charge separation dynamics have been identified. Energy absorbed in the phycobilisome (PB) rods by the abundant phycoerythrin (PE) is funneled to phycocyanin (PC645) and from there to the core that contains allophycocyanin (APC660 and APC680). Intra-PB EET rates have been estimated to range from 11 to 68/ns. It was estimated that at RT, the terminal emitter of the phycobilisome, APC680, transfers its energy at a rate of 90/ns to PSI and at a rate of 50/ns to PSII. At 77 K, the redshifted Chl a states in the PSI core were heterogeneous, with maximum emission at 697 and 707 nm. In 72% of the PSI complexes, the bulk Chl a in equilibrium with F697 decayed with a main trapping lifetime of 39 ps.
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Affiliation(s)
- Alonso M Acuña
- Faculty of Science, Department of Physics and Astronomy and Institute for Lasers, Life and Biophotonics, Vrije Universiteit, Amsterdam, Netherlands
| | - Claire Lemaire
- CEA, Institut de Biologie et de Technologies de Saclay, and CNRS, 91191, Gif/Yvette Cedex, France
| | - Rienk van Grondelle
- Faculty of Science, Department of Physics and Astronomy and Institute for Lasers, Life and Biophotonics, Vrije Universiteit, Amsterdam, Netherlands
| | - Bruno Robert
- Faculty of Science, Department of Physics and Astronomy and Institute for Lasers, Life and Biophotonics, Vrije Universiteit, Amsterdam, Netherlands
- CEA, Institut de Biologie et de Technologies de Saclay, and CNRS, 91191, Gif/Yvette Cedex, France
| | - Ivo H M van Stokkum
- Faculty of Science, Department of Physics and Astronomy and Institute for Lasers, Life and Biophotonics, Vrije Universiteit, Amsterdam, Netherlands.
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van Stokkum IHM, Gwizdala M, Tian L, Snellenburg JJ, van Grondelle R, van Amerongen H, Berera R. A functional compartmental model of the Synechocystis PCC 6803 phycobilisome. PHOTOSYNTHESIS RESEARCH 2018; 135:87-102. [PMID: 28721458 PMCID: PMC5784004 DOI: 10.1007/s11120-017-0424-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 07/11/2017] [Indexed: 05/28/2023]
Abstract
In the light-harvesting antenna of the Synechocystis PCC 6803 phycobilisome (PB), the core consists of three cylinders, each composed of four disks, whereas each of the six rods consists of up to three hexamers (Arteni et al., Biochim Biophys Acta 1787(4):272-279, 2009). The rods and core contain phycocyanin and allophycocyanin pigments, respectively. Together these pigments absorb light between 400 and 650 nm. Time-resolved difference absorption spectra from wild-type PB and rod mutants have been measured in different quenching and annihilation conditions. Based upon a global analysis of these data and of published time-resolved emission spectra, a functional compartmental model of the phycobilisome is proposed. The model describes all experiments with a common set of parameters. Three annihilation time constants are estimated, 3, 25, and 147 ps, which represent, respectively, intradisk, interdisk/intracylinder, and intercylinder annihilation. The species-associated difference absorption and emission spectra of two phycocyanin and two allophycocyanin pigments are consistently estimated, as well as all the excitation energy transfer rates. Thus, the wild-type PB containing 396 pigments can be described by a functional compartmental model of 22 compartments. When the interhexamer equilibration within a rod is not taken into account, this can be further simplified to ten compartments, which is the minimal model. In this model, the slowest excitation energy transfer rates are between the core cylinders (time constants 115-145 ps), and between the rods and the core (time constants 68-115 ps).
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Affiliation(s)
- Ivo H M van Stokkum
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands.
| | - Michal Gwizdala
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
- Department of Physics, University of Pretoria, Pretoria, South Africa
| | - Lijin Tian
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
- Laboratory of Biophysics, Wageningen University, Wageningen, The Netherlands
| | - Joris J Snellenburg
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
| | - Rienk van Grondelle
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
| | | | - Rudi Berera
- Faculty of Sciences, Institute for Lasers, Life and Biophotonics, VU University Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
- Department of Food Sciences, Faculty of Agriculture, Kagawa University, Miki-cho, Kagawa, 761-0795, Japan
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Structures and enzymatic mechanisms of phycobiliprotein lyases CpcE/F and PecE/F. Proc Natl Acad Sci U S A 2017; 114:13170-13175. [PMID: 29180420 DOI: 10.1073/pnas.1715495114] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The light-harvesting phycobilisome in cyanobacteria and red algae requires the lyase-catalyzed chromophorylation of phycobiliproteins. There are three functionally distinct lyase families known. The heterodimeric E/F type is specific for attaching bilins covalently to α-subunits of phycocyanins and phycoerythrins. Unlike other lyases, the lyase also has chromophore-detaching activity. A subclass of the E/F-type lyases is, furthermore, capable of chemically modifying the chromophore. Although these enzymes were characterized >25 y ago, their structures remained unknown. We determined the crystal structure of the heterodimer of CpcE/F from Nostoc sp. PCC7120 at 1.89-Å resolution. Both subunits are twisted, crescent-shaped α-solenoid structures. CpcE has 15 and CpcF 10 helices. The inner (concave) layer of CpcE (helices h2, 4, 6, 8, 10, 12, and 14) and the outer (convex) layer of CpcF (h16, 18, 20, 22, and 24) form a cavity into which the phycocyanobilin chromophore can be modeled. This location of the chromophore is supported by mutations at the interface between the subunits and within the cavity. The structure of a structurally related, isomerizing lyase, PecE/F, that converts phycocyanobilin into phycoviolobilin, was modeled using the CpcE/F structure as template. A H87C88 motif critical for the isomerase activity of PecE/F is located at the loop between h20 and h21, supporting the proposal that the nucleophilic addition of Cys-88 to C10 of phycocyanobilin induces the isomerization of phycocyanobilin into phycoviolobilin. Also, the structure of NblB, involved in phycobilisome degradation could be modeled using CpcE as template. Combined with CpcF, NblB shows a low chromophore-detaching activity.
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Ding WL, Miao D, Hou YN, Jiang SP, Zhao BQ, Zhou M, Scheer H, Zhao KH. Small monomeric and highly stable near-infrared fluorescent markers derived from the thermophilic phycobiliprotein, ApcF2. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1864:1877-1886. [DOI: 10.1016/j.bbamcr.2017.08.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/13/2017] [Accepted: 08/02/2017] [Indexed: 01/05/2023]
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Ueno Y, Aikawa S, Niwa K, Abe T, Murakami A, Kondo A, Akimoto S. Variety in excitation energy transfer processes from phycobilisomes to photosystems I and II. PHOTOSYNTHESIS RESEARCH 2017; 133:235-243. [PMID: 28185041 DOI: 10.1007/s11120-017-0345-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/27/2017] [Indexed: 06/06/2023]
Abstract
The light-harvesting antennas of oxygenic photosynthetic organisms capture light energy and transfer it to the reaction centers of their photosystems. The light-harvesting antennas of cyanobacteria and red algae, called phycobilisomes (PBSs), supply light energy to both photosystem I (PSI) and photosystem II (PSII). However, the excitation energy transfer processes from PBS to PSI and PSII are not understood in detail. In the present study, the energy transfer processes from PBS to PSs in various cyanobacteria and red algae were examined in vivo by selectively exciting their PSs or PBSs, and measuring the resulting picosecond to nanosecond time-resolved fluorescences. By observing the delayed fluorescence spectrum of PBS-selective excitation in Arthrospira platensis, we demonstrated that energy transfer from PBS to PSI via PSII (PBS→PSII→PSI transfer) occurs even for PSI trimers. The contribution of PBS→PSII→PSI transfer was species dependent, being largest in the wild-type of red alga Pyropia yezoensis (formerly Porphyra yezoensis) and smallest in Synechococcus sp. PCC 7002. Comparing the time-resolved fluorescence after PSs- and PBS-selective excitation, we revealed that light energy flows from CP43 to CP47 by energy transfer between the neighboring PSII monomers in PBS-PSII supercomplexes. We also suggest two pathways of energy transfer: direct energy transfer from PBS to PSI (PBS→PSI transfer) and indirect transfer through PSII (PBS→PSII→PSI transfer). We also infer that PBS→PSI transfer conveys light energy to a lower-energy red chlorophyll than PBS→PSII→PSI transfer.
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Affiliation(s)
- Yoshifumi Ueno
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
| | - Shimpei Aikawa
- Graduate School of Engineering, Kobe University, Kobe, 657-8501, Japan
| | - Kyosuke Niwa
- Fisheries Technology Institute, Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries, Akashi, Hyogo, 674-0093, Japan
| | - Tomoko Abe
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, 351-0198, Japan
| | - Akio Murakami
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan
- Kobe University Research Center for Inland Seas, Awaji, 656-2401, Japan
| | - Akihiko Kondo
- Graduate School of Engineering, Kobe University, Kobe, 657-8501, Japan
| | - Seiji Akimoto
- Graduate School of Science, Kobe University, Kobe, 657-8501, Japan.
- Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501, Japan.
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Xu QZ, Tang QY, Han JX, Ding WL, Zhao BQ, Zhou M, Gärtner W, Scheer H, Zhao KH. Chromophorylation (in Escherichia coli) of allophycocyanin B subunits from far-red light acclimated Chroococcidiopsis thermalis sp. PCC7203. Photochem Photobiol Sci 2017; 16:1153-1161. [PMID: 28594045 DOI: 10.1039/c7pp00066a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cyanobacterial phycobilisomes funnel the harvested light energy to the reaction centers via two terminal emitters, allophycocyanin B and the core-membrane linker. ApcD is the α-subunit of allophycocyanin B responsible for its red-shifted absorbance (λmax 665 nm). Far-red photo-acclimated cyanobacteria contain certain allophycocyanins that show even further red-shifted absorbances (λmax > 700 nm). We studied the chromophorylation of the three far-red induced ApcD subunits ApcD2, ApcD3 and ApcD4 from Chroococcidiopsis thermalis sp. PCC7203 during the expression in E. coli. The complex behavior emphasizes that a variety of factors contribute to the spectral red-shift. Only ApcD2 bound phycocyanobilin covalently at the canonical position C81, while ApcD3 and ApcD4 gave only traces of stable products. The product of ApcD2 was, however, heterogeneous. The major fraction had a broad absorption around 560 nm and double-peaked fluorescence at 615 and 670 nm. A minor fraction was similar to the product of conventional ApcD, with maximal absorbance around 610 nm and fluorescence around 640 nm. The heterogeneity was lost in C65 and C132 variants; in these variants only the conventional product was formed. With ApcD4, a red-shifted product carrying non-covalently bound phycocyanobilin could be detected in the supernatant after cell lysis. While this chromophore was lost during purification, it could be stabilized by co-assembly with a far-red light-induced β-subunit, ApcB3.
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Affiliation(s)
- Qian-Zhao Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Qi-Ying Tang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Jia-Xin Han
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Wen-Long Ding
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Bao-Qing Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Ming Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Wolfgang Gärtner
- Max-Planck-Institute for Chemical Energy Conversion, Stiftstrasse 34-36, D-45470 Mülheim, Germany
| | - Hugo Scheer
- Department Biologie I, Universität München, D-80638 München, Germany
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, P.R. China.
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Lu L, Zhao BQ, Miao D, Ding WL, Zhou M, Scheer H, Zhao KH. A Simple Preparation Method for Phytochromobilin. Photochem Photobiol 2017; 93:675-680. [DOI: 10.1111/php.12710] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 11/16/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Lu Lu
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
| | - Bao-Qing Zhao
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
| | - Dan Miao
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
| | - Wen-Long Ding
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
| | - Ming Zhou
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
| | - Hugo Scheer
- Department Biologie I; Universität München; München Germany
| | - Kai-Hong Zhao
- State Key Laboratory of Agricultural Microbiology; Huazhong Agricultural University; Wuhan China
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Preparation, characterization of food grade phycobiliproteins from Porphyra haitanensis and the application in liposome-meat system. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.12.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Lee NK, Oh HM, Kim HS, Ahn CY. Higher production of C-phycocyanin by nitrogen-free (diazotrophic) cultivation of Nostoc sp. NK and simplified extraction by dark-cold shock. BIORESOURCE TECHNOLOGY 2017; 227:164-170. [PMID: 28024193 DOI: 10.1016/j.biortech.2016.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/03/2016] [Accepted: 12/05/2016] [Indexed: 05/23/2023]
Abstract
Nostoc sp. NK (KCTC 12772BP) was isolated and cultivated in a BG11 medium and a nitrate-free BG11 medium (BG110). To enhance C-phycocyanin (C-PC) content in the cells, different fluorescent lamps (white, plant, and red) were used as light sources for complementary chromatic adaptation (CCA). The maximum biomass productivity was 0.42g/L/d and 0.32g/L/d under BG11 and BG110 conditions, respectively. The maximum C-PC contents were 8.4% (w/w) under white lamps, 13.6% (w/w) under plant lamps, and 18% (w/w) under BG110 and the red light condition. The maximum C-PC productivity was 57.4mg/L/d in BG110 under the red lamp condition. These results indicate that a higher C-PC content could be obtained under a diazotrophic condition and a CCA reaction. The C-PC could be released naturally from cells without any extraction processes, when Nostoc sp. NK was cultivated in the BG110 medium with CO2 aeration and put in dark conditions at 5°C.
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Affiliation(s)
- Na Kyeong Lee
- Cell Factory Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Green Chemistry and Environmental Biotechnology, University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Hee-Mock Oh
- Cell Factory Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Green Chemistry and Environmental Biotechnology, University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Hee-Sik Kim
- Cell Factory Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Green Chemistry and Environmental Biotechnology, University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Chi-Yong Ahn
- Cell Factory Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Green Chemistry and Environmental Biotechnology, University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea.
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