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Huang X, Qin B, Qin L, Peng Z, Xia S, Su Y, Sun K, Peng K. A comparative study on photosynthetic characteristics and flavonoid metabolism between Camellia petelotii (Merr.) Sealy and Camellia impressinervis Chang &Liang. FRONTIERS IN PLANT SCIENCE 2022; 13:1071458. [PMID: 36544877 PMCID: PMC9762238 DOI: 10.3389/fpls.2022.1071458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Camellia petelotii (Merr.) Sealy and Camellia impressinervis Chang & Liang belong to the golden subgroup of Camellia (Theaceae). This subgroup contains the yellow-flowering species of the genus, which have high medicinal and ornamental value and a narrow geographical distribution. These species differ in their tolerance to high light intensity. This study aimed to explore the differences in their light-stress responses and light damage repair processes, and the effect of these networks on secondary metabolite synthesis. Two-year-old plants of both species grown at 300 µmol·m-2·s-1 photosynthetically active radiation (PAR) were shifted to 700 µmol·m-2·s-1 PAR for 5 days shifting back to 300 µmol·m-2·s-1 PAR for recovery for 5 days. Leaf samples were collected at the start of the experiment and 2 days after each shift. Data analysis included measuring photosynthetic indicators, differential transcriptome expression, and quantifying plant hormones, pigments, and flavonoids. Camellia impressinervis showed a weak ability to recover from photodamage that occurred at 700 µmol·m-2·s-1 compared with C. petelotii. Photodamage led to decreased photosynthesis, as shown by repressed transcript abundance for photosystem II genes psbA, B, C, O, and Q, photosystem I genes psaB, D, E, H, and N, electron transfer genes petE and F, and ATP synthesis genes ATPF1A and ATPF1B. High-light stress caused more severe damage to C. impressinervis, which showed a stronger response to reactive oxygen species than C. petelotii. In addition, high-light stress promoted the growth and development of high zeatin signalling and increased transcript abundance of adenylate dimethylallyl transferase (IPT) and histidine-containing phosphotransferase (AHP). The identification of transcriptional differences in the regulatory networks that respond to high-light stress and activate recovery of light damage in these two rare species adds to the resources available to conserve them and improve their value through molecular breeding.
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Affiliation(s)
- Xin Huang
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
- Forestry Research Institute of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Bo Qin
- Forestry Research Institute of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Lei Qin
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Zhihong Peng
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Shitou Xia
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Yi Su
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
| | - Kaidao Sun
- Forestry Research Institute of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Keqin Peng
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha, China
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Imaizumi K, Ifuku K. Binding and functions of the two chloride ions in the oxygen-evolving center of photosystem II. PHOTOSYNTHESIS RESEARCH 2022; 153:135-156. [PMID: 35698013 DOI: 10.1007/s11120-022-00921-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Light-driven water oxidation in photosynthesis occurs at the oxygen-evolving center (OEC) of photosystem II (PSII). Chloride ions (Cl-) are essential for oxygen evolution by PSII, and two Cl- ions have been found to specifically bind near the Mn4CaO5 cluster in the OEC. The retention of these Cl- ions within the OEC is critically supported by some of the membrane-extrinsic subunits of PSII. The functions of these two Cl- ions and the mechanisms of their retention both remain to be fully elucidated. However, intensive studies performed recently have advanced our understanding of the functions of these Cl- ions, and PSII structures from various species have been reported, aiding the interpretation of previous findings regarding Cl- retention by extrinsic subunits. In this review, we summarize the findings to date on the roles of the two Cl- ions bound within the OEC. Additionally, together with a short summary of the functions of PSII membrane-extrinsic subunits, we discuss the mechanisms of Cl- retention by these extrinsic subunits.
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Affiliation(s)
- Ko Imaizumi
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, Japan
| | - Kentaro Ifuku
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
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Huang X, Qin B, Xia S, Su Y, Ku W, Chen R, Peng K. A comparative study on the effects of strong light stress on the photosynthetic characteristics of the shade plant Camellia petelotii (Merr.) Sealy. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01172-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Macromolecular conformational changes in photosystem II: interaction between structure and function. Biophys Rev 2022; 14:871-886. [DOI: 10.1007/s12551-022-00979-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/02/2022] [Indexed: 01/08/2023] Open
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Imaizumi K, Nishimura T, Nagao R, Saito K, Nakano T, Ishikita H, Noguchi T, Ifuku K. D139N mutation of PsbP enhances the oxygen-evolving activity of photosystem II through stabilized binding of a chloride ion. PNAS NEXUS 2022; 1:pgac136. [PMID: 36741451 PMCID: PMC9896922 DOI: 10.1093/pnasnexus/pgac136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 07/19/2022] [Indexed: 02/07/2023]
Abstract
Photosystem II (PSII) is a multisubunit membrane protein complex that catalyzes light-driven oxidation of water to molecular oxygen. The chloride ion (Cl-) has long been known as an essential cofactor for oxygen evolution by PSII, and two Cl- ions (Cl-1 and Cl-2) have been found to specifically bind near the Mn4CaO5 cluster within the oxygen-evolving center (OEC). However, despite intensive studies on these Cl- ions, little is known about the function of Cl-2, the Cl- ion that is associated with the backbone nitrogens of D1-Asn338, D1-Phe339, and CP43-Glu354. In green plant PSII, the membrane extrinsic subunits-PsbP and PsbQ-are responsible for Cl- retention within the OEC. The Loop 4 region of PsbP, consisting of highly conserved residues Thr135-Gly142, is inserted close to Cl-2, but its importance has not been examined to date. Here, we investigated the importance of PsbP-Loop 4 using spinach PSII membranes reconstituted with spinach PsbP proteins harboring mutations in this region. Mutations in PsbP-Loop 4 had remarkable effects on the rate of oxygen evolution by PSII. Moreover, we found that a specific mutation, PsbP-D139N, significantly enhances the oxygen-evolving activity in the absence of PsbQ, but not significantly in its presence. The D139N mutation increased the Cl- retention ability of PsbP and induced a unique structural change in the OEC, as indicated by light-induced Fourier transform infrared (FTIR) difference spectroscopy and theoretical calculations. Our findings provide insight into the functional significance of Cl-2 in the water-oxidizing reaction of PSII.
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Affiliation(s)
- Ko Imaizumi
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Taishi Nishimura
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Ryo Nagao
- Division of Material Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Keisuke Saito
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
- Department of Applied Chemistry, The University of Tokyo, Tokyo 113-8654 , Japan
| | - Takeshi Nakano
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Hiroshi Ishikita
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan
- Department of Applied Chemistry, The University of Tokyo, Tokyo 113-8654 , Japan
| | - Takumi Noguchi
- Division of Material Science, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Kentaro Ifuku
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
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Structural and Functional Heat Stress Responses of Chloroplasts of Arabidopsis thaliana. Genes (Basel) 2020; 11:genes11060650. [PMID: 32545654 PMCID: PMC7349189 DOI: 10.3390/genes11060650] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/04/2020] [Accepted: 06/08/2020] [Indexed: 11/17/2022] Open
Abstract
Temperature elevations constitute a major threat to plant performance. In recent years, much was learned about the general molecular mode of heat stress reaction of plants. The current research focuses on the integration of the knowledge into more global networks, including the reactions of cellular compartments. For instance, chloroplast function is central for plant growth and survival, and the performance of chloroplasts is tightly linked to the general status of the cell and vice versa. We examined the changes in photosynthesis, chloroplast morphology and proteomic composition posed in Arabidopsis thaliana chloroplasts after a single or repetitive heat stress treatment over a period of two weeks. We observed that the acclimation is potent in the case of repetitive application of heat stress, while a single stress results in lasting alterations. Moreover, the physiological capacity and its adjustment are dependent on the efficiency of the protein translocation process as judged from the analysis of mutants of the two receptor units of the chloroplast translocon, TOC64, and TOC33. In response to repetitive heat stress, plants without TOC33 accumulate Hsp70 proteins and plants without TOC64 have a higher content of proteins involved in thylakoid structure determination when compared to wild-type plants.
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Che Y, Kusama S, Matsui S, Suorsa M, Nakano T, Aro EM, Ifuku K. Arabidopsis PsbP-Like Protein 1 Facilitates the Assembly of the Photosystem II Supercomplexes and Optimizes Plant Fitness under Fluctuating Light. PLANT & CELL PHYSIOLOGY 2020; 61:1168-1180. [PMID: 32277833 DOI: 10.1093/pcp/pcaa045] [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: 10/19/2019] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
In green plants, photosystem II (PSII) forms multisubunit supercomplexes (SCs) containing a dimeric core and light-harvesting complexes (LHCs). In this study, we show that Arabidopsis thaliana PsbP-like protein 1 (PPL1) is involved in the assembly of the PSII SCs and is required for adaptation to changing light intensity. PPL1 is a homolog of PsbP protein that optimizes the water-oxidizing reaction of PSII in green plants and is required for the efficient repair of photodamaged PSII; however, its exact function has been unknown. PPL1 was enriched in stroma lamellae and grana margins and associated with PSII subcomplexes including PSII monomers and PSII dimers, and several LHCII assemblies, while PPL1 was not detected in PSII-LHCII SCs. In a PPL1 null mutant (ppl1-2), assembly of CP43, PsbR and PsbW was affected, resulting in a reduced accumulation of PSII SCs even under moderate light intensity. This caused the abnormal association of LHCII in ppl1-2, as indicated by lower maximal quantum efficiency of PSII (Fv/Fm) and accelerated State 1 to State 2 transitions. These differences would lower the capability of plants to adapt to changing light environments, thereby leading to reduced growth under natural fluctuating light environments. Phylogenetic and structural analyses suggest that PPL1 is closely related to its cyanobacterial homolog CyanoP, which functions as an assembly factor in the early stage of PSII biogenesis. Our results suggest that PPL1 has a similar function, but the data also indicate that it could aid the association of LHCII with PSII.
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Affiliation(s)
- Yufen Che
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Shoko Kusama
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Shintaro Matsui
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Marjaana Suorsa
- Molecular Plant Biology, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland
| | - Takeshi Nakano
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Eva-Mari Aro
- Molecular Plant Biology, Department of Biochemistry, University of Turku, FI-20014 Turku, Finland
| | - Kentaro Ifuku
- Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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The Biochemical Properties of Manganese in Plants. PLANTS 2019; 8:plants8100381. [PMID: 31569811 PMCID: PMC6843630 DOI: 10.3390/plants8100381] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 01/12/2023]
Abstract
Manganese (Mn) is an essential micronutrient with many functional roles in plant metabolism. Manganese acts as an activator and co-factor of hundreds of metalloenzymes in plants. Because of its ability to readily change oxidation state in biological systems, Mn plays and important role in a broad range of enzyme-catalyzed reactions, including redox reactions, phosphorylation, decarboxylation, and hydrolysis. Manganese(II) is the prevalent oxidation state of Mn in plants and exhibits fast ligand exchange kinetics, which means that Mn can often be substituted by other metal ions, such as Mg(II), which has similar ion characteristics and requirements to the ligand environment of the metal binding sites. Knowledge of the molecular mechanisms catalyzed by Mn and regulation of Mn insertion into the active site of Mn-dependent enzymes, in the presence of other metals, is gradually evolving. This review presents an overview of the chemistry and biochemistry of Mn in plants, including an updated list of known Mn-dependent enzymes, together with enzymes where Mn has been shown to exchange with other metal ions. Furthermore, the current knowledge of the structure and functional role of the three most well characterized Mn-containing metalloenzymes in plants; the oxygen evolving complex of photosystem II, Mn superoxide dismutase, and oxalate oxidase is summarized.
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Asada M, Nishimura T, Ifuku K, Mino H. Location of the extrinsic subunit PsbP in photosystem II studied by pulsed electron-electron double resonance. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2018. [DOI: 10.1016/j.bbabio.2018.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Sakashita N, Watanabe HC, Ikeda T, Ishikita H. Structurally conserved channels in cyanobacterial and plant photosystem II. PHOTOSYNTHESIS RESEARCH 2017; 133:75-85. [PMID: 28188547 DOI: 10.1007/s11120-017-0347-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 01/29/2017] [Indexed: 06/06/2023]
Abstract
In the cyanobacterial photosystem II (PSII), the O4-water chain in the D1 and CP43 proteins, a chain of water molecules that are directly H-bonded to O4 of the Mn4Ca cluster, is linked with a channel that connects the protein bulk surface along with a membrane-extrinsic protein subunit, PsbU (O4-PsbU channel). The cyanobacterial PSII structure also shows that the O1 site of the Mn4Ca cluster has a chain of H-bonded water molecules, which is linked with the channel that proceeds toward the bulk surface via PsbU and PsbV (O1-PsbU/V channel). Membrane-extrinsic protein subunits PsbU and PsbV in cyanobacterial PSII are replaced with PsbP and PsbQ in plant PSII. However, these four proteins have no structural similarity. It remains unknown whether the corresponding channels also exist in plant PSII, because water molecules are not identified in the plant PSII cryo-electron microscopy (cryo-EM) structure. Using the cyanobacterial and plant PSII structures, we analyzed the channels that proceed from the Mn4Ca cluster. The cyanobacterial O4-PsbU and O1-PsbU/V channels were structurally conserved as the channel that proceeds along PsbP toward the protein bulk surface in the plant PSII (O4-PsbP and O1-PsbP channels, respectively). Calculated protonation states indicated that in contrast to the original geometry of the plant cryo-EM structure, protonated PsbP-Lys166 may form a salt-bridge with ionized D1-Glu329 and protonated PsbP-Lys173 may form a salt-bridge with ionized PsbQ-Asp28 near the O1-PsbP channel. The existence of these channels might explain the molecular mechanism of how PsbP can interact with the Mn4Ca cluster.
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Affiliation(s)
- Naoki Sakashita
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
| | - Hiroshi C Watanabe
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan
| | - Takuya Ikeda
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan
| | - Hiroshi Ishikita
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8654, Japan.
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan.
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Nishimura T, Sato F, Ifuku K. In vivo system for analyzing the function of the PsbP protein using Chlamydomonas reinhardtii. PHOTOSYNTHESIS RESEARCH 2017; 133:117-127. [PMID: 28341915 DOI: 10.1007/s11120-017-0370-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/14/2017] [Indexed: 06/06/2023]
Abstract
The PsbP protein is an extrinsic subunit of photosystem II (PSII) specifically developed in green-plant species including land plants and green algae. The protein-protein interactions involving PsbP and its effect on oxygen evolution have been investigated in vitro using isolated PSII membranes. However, the importance of those interactions needs to be examined at the cellular level. To this end, we developed a system expressing exogenous PsbP in the background of the Chlamydomonas BF25 mutant lacking native PsbP. Expression of His-tagged PsbP successfully restored the oxygen-evolving activity and photoautotrophic growth of the mutant, while PsbP-∆15 lacking the N-terminal 15 residues, which are crucial for the oxygen-evolving activity of spinach PSII in vitro, only partially did. This demonstrated the importance of N-terminal sequence of PsbP for the photosynthetic activity in vivo. Furthermore, the PSII-LHCII supercomplex can be specifically purified from the Chlamydomonas cells having His-tagged PsbP using a metal affinity chromatography. This study provides a platform not only for the functional analysis of PsbP in vivo but also for structural analysis of the PSII-LHCII supercomplex from green algae.
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Affiliation(s)
- Taishi Nishimura
- Graduate School of Biostudies, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Fumihiko Sato
- Graduate School of Biostudies, Kyoto University, Sakyo, Kyoto, 606-8502, Japan
| | - Kentaro Ifuku
- Graduate School of Biostudies, Kyoto University, Sakyo, Kyoto, 606-8502, Japan.
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Mummadisetti MP, Frankel LK, Bellamy HD, Sallans L, Goettert JS, Brylinski M, Bricker TM. Use of Protein Cross-Linking and Radiolytic Labeling To Elucidate the Structure of PsbO within Higher-Plant Photosystem II. Biochemistry 2016; 55:3204-13. [PMID: 27203407 DOI: 10.1021/acs.biochem.6b00365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We have used protein cross-linking with the zero-length cross-linker 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide, and radiolytic footprinting coupled with high-resolution tandem mass spectrometry, to examine the structure of higher-plant PsbO when it is bound to Photosystem II. Twenty intramolecular cross-linked residue pairs were identified. On the basis of this cross-linking data, spinach PsbO was modeled using the Thermosynechococcus vulcanus PsbO structure as a template, with the cross-linking distance constraints incorporated using the MODELLER program. Our model of higher-plant PsbO identifies several differences between the spinach and cyanobacterial proteins. The N-terminal region is particularly interesting, as this region has been suggested to be important for oxygen evolution and for the specific binding of PsbO to Photosystem II. Additionally, using radiolytic mapping, we have identified regions on spinach PsbO that are shielded from the bulk solvent. These domains may represent regions on PsbO that interact with other components, as yet unidentified, of the photosystem.
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Affiliation(s)
- Manjula P Mummadisetti
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Laurie K Frankel
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Henry D Bellamy
- The J. Bennett Johnston, Sr. Center for Advanced Microstructures & Devices, Louisiana State University , Baton Rouge, Louisiana 70806, United States
| | - Larry Sallans
- The Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati , Cincinnati, Ohio 45221, United States
| | - Jost S Goettert
- The J. Bennett Johnston, Sr. Center for Advanced Microstructures & Devices, Louisiana State University , Baton Rouge, Louisiana 70806, United States
| | - Michal Brylinski
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana 70803, United States
| | - Terry M Bricker
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University , Baton Rouge, Louisiana 70803, United States
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von Sydow L, Schwenkert S, Meurer J, Funk C, Mamedov F, Schröder WP. The PsbY protein of Arabidopsis Photosystem II is important for the redox control of cytochrome b559. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2016; 1857:1524-1533. [PMID: 27220875 DOI: 10.1016/j.bbabio.2016.05.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/19/2016] [Accepted: 05/20/2016] [Indexed: 12/21/2022]
Abstract
Photosystem II is a protein complex embedded in the thylakoid membrane of photosynthetic organisms and performs the light driven water oxidation into electrons and molecular oxygen that initiate the photosynthetic process. This important complex is composed of more than two dozen of intrinsic and peripheral subunits, of those half are low molecular mass proteins. PsbY is one of those low molecular mass proteins; this 4.7-4.9kDa intrinsic protein seems not to bind any cofactors. Based on structural data from cyanobacterial and red algal Photosystem II PsbY is located closely or in direct contact with cytochrome b559. Cytb559 consists of two protein subunits (PsbE and PsbF) ligating a heme-group in-between them. While the exact function of this component in Photosystem II has not yet been clarified, a crucial role for assembly and photo-protection in prokaryotic complexes has been suggested. One unique feature of Cytb559 is its redox-heterogeneity, forming high, medium and low potential, however, neither origin nor mechanism are known. To reveal the function of PsbY within Photosystem II of Arabidopsis we have analysed PsbY knock-out plants and compared them to wild type and to complemented mutant lines. We show that in the absence of PsbY protein Cytb559 is only present in its oxidized, low potential form and plants depleted of PsbY were found to be more susceptible to photoinhibition.
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Affiliation(s)
- Lotta von Sydow
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Serena Schwenkert
- Department Biologie I, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Jörg Meurer
- Department Biologie I, Ludwig-Maximilians-University Munich, 82152 Planegg-Martinsried, Germany
| | - Christiane Funk
- Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
| | - Fikret Mamedov
- Molecular Biomimetics, Department of Chemistry - Ångström Laboratory, Box 523, Uppsala University, SE-751 20 Uppsala, Sweden
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Weisz DA, Gross ML, Pakrasi HB. The Use of Advanced Mass Spectrometry to Dissect the Life-Cycle of Photosystem II. FRONTIERS IN PLANT SCIENCE 2016; 7:617. [PMID: 27242823 PMCID: PMC4862242 DOI: 10.3389/fpls.2016.00617] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/22/2016] [Indexed: 05/23/2023]
Abstract
Photosystem II (PSII) is a photosynthetic membrane-protein complex that undergoes an intricate, tightly regulated cycle of assembly, damage, and repair. The available crystal structures of cyanobacterial PSII are an essential foundation for understanding PSII function, but nonetheless provide a snapshot only of the active complex. To study aspects of the entire PSII life-cycle, mass spectrometry (MS) has emerged as a powerful tool that can be used in conjunction with biochemical techniques. In this article, we present the MS-based approaches that are used to study PSII composition, dynamics, and structure, and review the information about the PSII life-cycle that has been gained by these methods. This information includes the composition of PSII subcomplexes, discovery of accessory PSII proteins, identification of post-translational modifications and quantification of their changes under various conditions, determination of the binding site of proteins not observed in PSII crystal structures, conformational changes that underlie PSII functions, and identification of water and oxygen channels within PSII. We conclude with an outlook for the opportunity of future MS contributions to PSII research.
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Affiliation(s)
- Daniel A. Weisz
- Department of Biology, Washington University in St. LouisSt. Louis, MO, USA
- Department of Chemistry, Washington University in St. LouisSt. Louis, MO, USA
| | - Michael L. Gross
- Department of Chemistry, Washington University in St. LouisSt. Louis, MO, USA
| | - Himadri B. Pakrasi
- Department of Biology, Washington University in St. LouisSt. Louis, MO, USA
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Roose JL, Frankel LK, Mummadisetti MP, Bricker TM. The extrinsic proteins of photosystem II: update. PLANTA 2016; 243:889-908. [PMID: 26759350 DOI: 10.1007/s00425-015-2462-6] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/25/2015] [Indexed: 05/24/2023]
Abstract
Recent investigations have provided important new insights into the structures and functions of the extrinsic proteins of Photosystem II. This review is an update of the last major review on the extrinsic proteins of Photosystem II (Bricker et al., Biochemistry 31:4623-4628 2012). In this report, we will examine advances in our understanding of the structure and function of these components. These proteins include PsbO, which is uniformly present in all oxygenic organisms, the PsbU, PsbV, CyanoQ, and CyanoP proteins, found in the cyanobacteria, and the PsbP, PsbQ and PsbR proteins, found in the green plant lineage. These proteins serve to stabilize the Mn4CaO5 cluster and optimize oxygen evolution at physiological calcium and chloride concentrations. The mechanisms used to perform these functions, however, remain poorly understood. Recently, important new findings have significantly advanced our understanding of the structures, locations and functions of these important subunits. We will discuss the biochemical, structural and genetic studies that have been used to elucidate the roles played by these proteins within the photosystem and their locations within the photosynthetic complex. Additionally, we will examine open questions needing to be addressed to provide a coherent picture of the role of these components within the photosystem.
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Affiliation(s)
- Johnna L Roose
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Laurie K Frankel
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Manjula P Mummadisetti
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Terry M Bricker
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA.
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16
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Nishimura T, Nagao R, Noguchi T, Nield J, Sato F, Ifuku K. The N-terminal sequence of the extrinsic PsbP protein modulates the redox potential of Cyt b559 in photosystem II. Sci Rep 2016; 6:21490. [PMID: 26887804 PMCID: PMC4757834 DOI: 10.1038/srep21490] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/25/2016] [Indexed: 11/20/2022] Open
Abstract
The PsbP protein, an extrinsic subunit of photosystem II (PSII) in green plants, is known to induce a conformational change around the catalytic Mn4CaO5 cluster securing the binding of Ca2+ and Cl– in PSII. PsbP has multiple interactions with the membrane subunits of PSII, but how these affect the structure and function of PSII requires clarification. Here, we focus on the interactions between the N-terminal residues of PsbP and the α subunit of Cytochrome (Cyt) b559 (PsbE). A key observation was that a peptide fragment formed of the first N-terminal 15 residues of PsbP, ‘pN15’, was able to convert Cyt b559 into its HP form. Interestingly, addition of pN15 to NaCl-washed PSII membranes decreased PSII’s oxygen-evolving activity, even in the presence of saturating Ca2+ and Cl– ions. In fact, pN15 reversibly inhibited the S1 to S2 transition of the OEC in PSII. These data suggest that pN15 can modulate the redox property of Cyt b559 involved in the side-electron pathway in PSII. This potential change of Cyt b559, in the absence of the C-terminal domain of PsbP, however, would interfere with any electron donation from the Mn4CaO5 cluster, leading to the possibility that multiple interactions of PsbP, binding to PSII, have distinct roles in regulating electron transfer within PSII.
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Affiliation(s)
- Taishi Nishimura
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Ryo Nagao
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan
| | - Takumi Noguchi
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan
| | - Jon Nield
- School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Fumihiko Sato
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kentaro Ifuku
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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17
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Ifuku K, Noguchi T. Structural Coupling of Extrinsic Proteins with the Oxygen-Evolving Center in Photosystem II. FRONTIERS IN PLANT SCIENCE 2016; 7:84. [PMID: 26904056 PMCID: PMC4743485 DOI: 10.3389/fpls.2016.00084] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 01/17/2016] [Indexed: 05/24/2023]
Abstract
Photosystem II (PSII), which catalyzes photosynthetic water oxidation, is composed of more than 20 subunits, including membrane-intrinsic and -extrinsic proteins. The PSII extrinsic proteins shield the catalytic Mn4CaO5 cluster from the outside bulk solution and enhance binding of inorganic cofactors, such as Ca(2+) and Cl(-), in the oxygen-evolving center (OEC) of PSII. Among PSII extrinsic proteins, PsbO is commonly found in all oxygenic organisms, while PsbP and PsbQ are specific to higher plants and green algae, and PsbU, PsbV, CyanoQ, and CyanoP exist in cyanobacteria. In addition, red algae and diatoms have unique PSII extrinsic proteins, such as PsbQ' and Psb31, suggesting functional divergence during evolution. Recent studies with reconstitution experiments combined with Fourier transform infrared spectroscopy have revealed how the individual PSII extrinsic proteins affect the structure and function of the OEC in different organisms. In this review, we summarize our recent results and discuss changes that have occurred in the structural coupling of extrinsic proteins with the OEC during evolutionary history.
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Affiliation(s)
- Kentaro Ifuku
- Graduate School of Biostudies, Kyoto UniversityKyoto, Japan
| | - Takumi Noguchi
- Graduate School of Science, Nagoya UniversityAichi, Japan
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18
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Rathner A, Chandra K, Rathner P, Horničáková M, Schlagnitweit J, Kohoutová J, Ettrich R, Müller N. Resonance assignment of PsbP: an extrinsic protein from photosystem II of Spinacia oleracea. BIOMOLECULAR NMR ASSIGNMENTS 2015; 9:341-346. [PMID: 25903141 PMCID: PMC4568021 DOI: 10.1007/s12104-015-9606-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 04/11/2015] [Indexed: 06/04/2023]
Abstract
PsbP (23 kDa) is an extrinsic eukaryotic protein of photosystem II found in the thylakoid membrane of higher plants and green algae. It has been proven to be indispensable for proper functioning of the oxygen evolving complex. By interaction with other extrinsic proteins (PsbQ, PsbO and PsbR), it modulates the concentration of two cofactors of the water splitting reaction, Ca(2+) and Cl(-). The crystallographic structure of PsbP from Spinacia oleracea lacks the N-terminal part as well as two inner regions which were modelled as loops. Those unresolved parts are believed to be functionally crucial for the binding of PsbP to the thylakoid membrane. In this NMR study we report (1)H, (15)N and (13)C resonance assignments of the backbone and side chain atoms of the PsbP protein. Based on these data, an estimate of the secondary structure has been made. The structural motifs found fit the resolved parts of the crystallographic structure very well. In addition, the complete assignment set provides preliminary insight into the dynamic regions.
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Affiliation(s)
- Adriana Rathner
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
| | - Kousik Chandra
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria
| | - Petr Rathner
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
| | - Michaela Horničáková
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria
- Lohmann Animal Health, Heinz-Lohmann-Straße 4, 27472, Cuxhaven, Germany
| | - Judith Schlagnitweit
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria
- Centre de RMN à très Hauts Champs, Institut des Sciences Analytiques, Université de Lyon, 5 Rue de la Doua, 69100, Villeurbanne, France
| | - Jaroslava Kohoutová
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
- Centrum of Nanobiology and Structural Biology, Institute of Microbiology, Academy of Sciences of the Czech Republic, Nové Hrady, Czech Republic
| | - Rüdiger Ettrich
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
- Centrum of Nanobiology and Structural Biology, Institute of Microbiology, Academy of Sciences of the Czech Republic, Nové Hrady, Czech Republic
| | - Norbert Müller
- Institute of Organic Chemistry, Johannes Kepler University, Altenbergerstraße 69, 4040, Linz, Austria.
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic.
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19
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Bricker TM, Mummadisetti MP, Frankel LK. Recent advances in the use of mass spectrometry to examine structure/function relationships in photosystem II. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 152:227-46. [PMID: 26390944 DOI: 10.1016/j.jphotobiol.2015.08.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 01/24/2023]
Abstract
Tandem mass spectrometry often coupled with chemical modification techniques, is developing into increasingly important tool in structural biology. These methods can provide important supplementary information concerning the structural organization and subunit make-up of membrane protein complexes, identification of conformational changes occurring during enzymatic reactions, identification of the location of posttranslational modifications, and elucidation of the structure of assembly and repair complexes. In this review, we will present a brief introduction to Photosystem II, tandem mass spectrometry and protein modification techniques that have been used to examine the photosystem. We will then discuss a number of recent case studies that have used these techniques to address open questions concerning PS II. These include the nature of subunit-subunit interactions within the phycobilisome, the interaction of phycobilisomes with Photosystem I and the Orange Carotenoid Protein, the location of CyanoQ, PsbQ and PsbP within Photosystem II, and the identification of phosphorylation and oxidative modification sites within the photosystem. Finally, we will discuss some of the future prospects for the use of these methods in examining other open questions in PS II structural biochemistry.
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Affiliation(s)
- Terry M Bricker
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803, United States.
| | - Manjula P Mummadisetti
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803, United States
| | - Laurie K Frankel
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803, United States
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20
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Ifuku K. Localization and functional characterization of the extrinsic subunits of photosystem II: an update. Biosci Biotechnol Biochem 2015; 79:1223-31. [DOI: 10.1080/09168451.2015.1031078] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Abstract
Photosystem II (PSII), which catalyzes photosynthetic water oxidation, is composed of more than 20 subunits, including membrane-intrinsic and -extrinsic proteins. The extrinsic proteins of PSII shield the catalytic Mn4CaO5 cluster from exogenous reductants and serve to optimize oxygen evolution at physiological ionic conditions. These proteins include PsbO, found in all oxygenic organisms, PsbP and PsbQ, specific to higher plants and green algae, and PsbU, PsbV, CyanoQ, and CyanoP in cyanobacteria. Furthermore, red algal PSII has PsbQ′ in addition to PsbO, PsbV, and PsbU, and diatoms have Psb31 in supplement to red algal-type extrinsic proteins, exemplifying the functional divergence of these proteins during evolution. This review provides an updated summary of recent findings on PSII extrinsic proteins and discusses their binding, function, and evolution within various photosynthetic organisms.
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Affiliation(s)
- Kentaro Ifuku
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto, Japan
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21
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Cao P, Xie Y, Li M, Pan X, Zhang H, Zhao X, Su X, Cheng T, Chang W. Crystal structure analysis of extrinsic PsbP protein of photosystem II reveals a manganese-induced conformational change. MOLECULAR PLANT 2015; 8:664-6. [PMID: 25704164 DOI: 10.1016/j.molp.2015.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 12/30/2014] [Accepted: 01/05/2015] [Indexed: 05/06/2023]
Affiliation(s)
- Peng Cao
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China
| | - Yuan Xie
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Mei Li
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China.
| | - Xiaowei Pan
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China
| | - Hongmei Zhang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China
| | - Xuelin Zhao
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China
| | - Xiaodong Su
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China
| | - Tao Cheng
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Wenrui Chang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15th Datun Road, Chaoyang District, Beijing 100101, China.
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22
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Nagao R, Tomo T, Noguchi T. Effects of Extrinsic Proteins on the Protein Conformation of the Oxygen-Evolving Center in Cyanobacterial Photosystem II As Revealed by Fourier Transform Infrared Spectroscopy. Biochemistry 2015; 54:2022-31. [DOI: 10.1021/acs.biochem.5b00053] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryo Nagao
- Division
of Material Science, Graduate School of Science, Nagoya University, Furo-cho,
Chikusa-ku, Nagoya 464-8602, Japan
| | - Tatsuya Tomo
- Department
of Biology, Faculty of Science, Tokyo University of Science, Kagurazaka
1-3, Shinjuku-ku, Tokyo 162-8601, Japan
- PRESTO, Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Takumi Noguchi
- Division
of Material Science, Graduate School of Science, Nagoya University, Furo-cho,
Chikusa-ku, Nagoya 464-8602, Japan
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23
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Mummadisetti MP, Frankel LK, Bellamy HD, Sallans L, Goettert JS, Brylinski M, Limbach PA, Bricker TM. Use of protein cross-linking and radiolytic footprinting to elucidate PsbP and PsbQ interactions within higher plant Photosystem II. Proc Natl Acad Sci U S A 2014; 111:16178-83. [PMID: 25349426 PMCID: PMC4234589 DOI: 10.1073/pnas.1415165111] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Protein cross-linking and radiolytic footprinting coupled with high-resolution mass spectrometry were used to examine the structure of PsbP and PsbQ when they are bound to Photosystem II. In its bound state, the N-terminal 15-amino-acid residue domain of PsbP, which is unresolved in current crystal structures, interacts with domains in the C terminus of the protein. These interactions may serve to stabilize the structure of the N terminus and may facilitate PsbP binding and function. These interactions place strong structural constraints on the organization of PsbP when associated with the Photosystem II complex. Additionally, amino acid residues in the structurally unresolved loop 3A domain of PsbP ((90)K-(107)V), (93)Y and (96)K, are in close proximity (≤ 11.4 Å) to the N-terminal (1)E residue of PsbQ. These findings are the first, to our knowledge, to identify a putative region of interaction between these two components. Cross-linked domains within PsbQ were also identified, indicating that two PsbQ molecules can interact in higher plants in a manner similar to that observed by Liu et al. [(2014) Proc Natl Acad Sci 111(12):4638-4643] in cyanobacterial Photosystem II. This interaction is consistent with either intra-Photosystem II dimer or inter-Photosystem II dimer models in higher plants. Finally, OH(•) produced by synchrotron radiolysis of water was used to oxidatively modify surface residues on PsbP and PsbQ. Domains on the surface of both protein subunits were resistant to modification, indicating that they were shielded from water and appear to define buried regions that are in contact with other Photosystem II components.
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Affiliation(s)
- Manjula P Mummadisetti
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803
| | - Laurie K Frankel
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803
| | - Henry D Bellamy
- The J. Bennett Johnston, Sr. Center for Advanced Microstructures & Devices, and
| | - Larry Sallans
- The Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221
| | - Jost S Goettert
- The J. Bennett Johnston, Sr. Center for Advanced Microstructures & Devices, and
| | - Michal Brylinski
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803; Center for Computation & Technology, Louisiana State University, Baton Rouge, LA 70806; and
| | - Patrick A Limbach
- The Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221
| | - Terry M Bricker
- Department of Biological Sciences, Division of Biochemistry and Molecular Biology, Louisiana State University, Baton Rouge, LA 70803;
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24
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Cormann KU, Bartsch M, Rögner M, Nowaczyk MM. Localization of the CyanoP binding site on photosystem II by surface plasmon resonance spectroscopy. FRONTIERS IN PLANT SCIENCE 2014; 5:595. [PMID: 25414711 PMCID: PMC4220643 DOI: 10.3389/fpls.2014.00595] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 10/13/2014] [Indexed: 05/23/2023]
Abstract
Photosystem II (PSII), a large multi subunit membrane protein complex localized in the thylakoid membrane of cyanobacteria and chloroplasts, is the only known enzyme that catalyzes the light-driven oxidation of water. In addition to the membrane intrinsic part of PSII, efficient oxygen evolution requires soluble protein subunits at its luminal interface. In contrast to the detailed crystal structure of the active cyanobacterial complex the characterization of intermediate PSII species related to its assembly and repair is hampered by their instability or low abundance. As most structural variations of the corresponding PSII species are based on a different set of protein factors bound to the luminal interface of the complex we developed a system for interaction analysis between PSII and its soluble interaction partners based on surface plasmon resonance (SPR) spectroscopy. The assay was validated by the correct localization of the extrinsic PSII proteins PsbO, PsbV, and PsbU on the luminal PSII surface and used to determine the unknown binding position of CyanoP, the cyanobacterial homolog of higher plant PsbP. The CyanoP binding site was clearly localized in the center of PSII at a position, which is occupied by the PsbO subunit in mature PSII complexes. Consistently, we demonstrate selective binding of CyanoP to an inactive PSII assembly intermediate that lacks the extrinsic subunits PsbO, PsbV, and PsbU. These findings suggest, that CyanoP functions in the dynamic lifecycle of PSII, possibly in the association of CP47 and CP43 or in photoactivation of the oxygen-evolving complex.
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Affiliation(s)
| | | | | | - Marc M. Nowaczyk
- *Correspondence: Marc M. Nowaczyk, Plant Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany e-mail:
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25
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Ifuku K. The PsbP and PsbQ family proteins in the photosynthetic machinery of chloroplasts. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 81:108-14. [PMID: 24477118 DOI: 10.1016/j.plaphy.2014.01.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 01/03/2014] [Indexed: 05/06/2023]
Abstract
The PsbP and PsbQ proteins are extrinsic subunits of the photosystem II in eukaryotic photosynthetic organisms including higher plants, green algae and euglena. It has been suggested that PsbP and PsbQ have evolved from their cyanobacterial homologs, while considerable genetic and functional modifications have occurred to generate the eukaryote-type proteins. In addition, number of PsbP and PsbQ homologs exist in the thylakoid lumen of chloroplasts. These homologs are nuclear-encoded and likely diverged by gene duplication, and recent studies have elucidated their various functions in the photosynthetic machinery. In this short review, recent findings and new idea about these components will be discussed.
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Affiliation(s)
- Kentaro Ifuku
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan; Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
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26
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Ido K, Nield J, Fukao Y, Nishimura T, Sato F, Ifuku K. Cross-linking evidence for multiple interactions of the PsbP and PsbQ proteins in a higher plant photosystem II supercomplex. J Biol Chem 2014; 289:20150-7. [PMID: 24914208 PMCID: PMC4106330 DOI: 10.1074/jbc.m114.574822] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 06/04/2014] [Indexed: 11/06/2022] Open
Abstract
The extrinsic subunits of membrane-bound photosystem II (PSII) maintain an essential role in optimizing the water-splitting reaction of the oxygen-evolving complex (OEC), even though they have undergone drastic change during the evolution of oxyphototrophs from symbiotic cyanobacteria to chloroplasts. Two specific extrinsic proteins, PsbP and PsbQ, bind to the lumenal surface of PSII in green plants and maintain OEC conformation and stabilize overall enzymatic function; however, their precise location has not been fully resolved. In this study, PSII-enriched membranes, isolated from spinach, were subjected to chemical cross-linking combined with release-reconstitution experiments. We observed direct interactions between PsbP and PsbE, as well as with PsbR. Intriguingly, PsbP and PsbQ were further linked to the CP26 and CP43 light-harvesting proteins. In addition, two cross-linked sites, between PsbP and PsbR, and that of PsbP and CP26, were identified by tandem mass spectrometry. These data were used to estimate the binding topology and location of PsbP, and the putative positioning of PsbQ and PsbR on the lumenal surface of the PSII. Our model gives new insights into the organization of PSII extrinsic subunits in higher plants and their function in stabilizing the OEC of the PSII supercomplex.
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Affiliation(s)
- Kunio Ido
- From the Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Jon Nield
- the School of Biological and Chemical Sciences, Queen Mary University of London, London E1 4NS, United Kingdom, and
| | - Yoichiro Fukao
- the Plant Global Educational Project, Nara Institute of Science and Technology, Ikoma 630-0192, Japan
| | - Taishi Nishimura
- From the Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Fumihiko Sato
- From the Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan
| | - Kentaro Ifuku
- From the Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan,
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27
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Noguchi T. Fourier transform infrared difference and time-resolved infrared detection of the electron and proton transfer dynamics in photosynthetic water oxidation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1847:35-45. [PMID: 24998309 DOI: 10.1016/j.bbabio.2014.06.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 06/25/2014] [Accepted: 06/26/2014] [Indexed: 01/15/2023]
Abstract
Photosynthetic water oxidation, which provides the electrons necessary for CO₂ reduction and releases O₂ and protons, is performed at the Mn₄CaO₅ cluster in photosystem II (PSII). In this review, studies that assessed the mechanism of water oxidation using infrared spectroscopy are summarized focusing on electron and proton transfer dynamics. Structural changes in proteins and water molecules between intermediates known as Si states (i=0-3) were detected using flash-induced Fourier transform infrared (FTIR) difference spectroscopy. Electron flow in PSII and proton release from substrate water were monitored using the infrared changes in ferricyanide as an exogenous electron acceptor and Mes buffer as a proton acceptor. Time-resolved infrared (TRIR) spectroscopy provided information on the dynamics of proton-coupled electron transfer during the S-state transitions. In particular, a drastic proton movement during the lag phase (~200μs) before electron transfer in the S3→S0 transition was detected directly by monitoring the infrared absorption of a polarizable proton in a hydrogen bond network. Furthermore, the proton release pathways in the PSII proteins were analyzed by FTIR difference measurements in combination with site-directed mutagenesis, isotopic substitutions, and quantum chemical calculations. Therefore, infrared spectroscopy is a powerful tool for understanding the molecular mechanism of photosynthetic water oxidation. This article is part of a Special Issue entitled: Vibrational spectroscopies and bioenergetic systems.
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Affiliation(s)
- Takumi Noguchi
- Division of Material Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan.
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28
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Sriswasdi S, Harper SL, Tang HY, Speicher DW. Enhanced identification of zero-length chemical cross-links using label-free quantitation and high-resolution fragment ion spectra. J Proteome Res 2014; 13:898-914. [PMID: 24369724 DOI: 10.1021/pr400953w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Chemical cross-linking coupled to mass spectrometry provides structural information that is useful for probing protein conformations and providing experimental support for molecular models. "Zero-length" cross-links have greater value for these applications than longer cross-links because they provide more stringent distance constraints. However, this method is less commonly utilized because it cannot take advantage of isotopic labels, MS-labile bonds, or enrichment tags to facilitate identification. In this study, we combined label-free precursor ion quantitation and targeted tandem mass spectrometry with a new software tool, Zero-length Cross-link Miner (ZXMiner), to form a multitiered analysis strategy. A major, critical objective was to simultaneously achieve very high accuracy with essentially no false-positive cross-link identifications while maintaining a good depth of analysis. Our strategy was optimized on several proteins with known crystal structures. Comparison of ZXMiner to several existing cross-link analysis software showed that other algorithms detected less true positive cross-links and were far less accurate. Although prior use of zero-length cross-linking was typically restricted to small proteins, ZXMiner and the associated strategy enable facile analysis of very large protein complexes. This was demonstrated by identification of zero-length cross-links using purified 526 kDa spectrin heterodimers and intact red cell membranes and membrane skeletons.
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Affiliation(s)
- Sira Sriswasdi
- Center for Systems and Computational Biology and Molecular and Cellular Oncogenesis Program, The Wistar Institute , 3601 Spruce Street, Philadelphia, Pennsylvania 19104, United States
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Nishimura T, Uno C, Ido K, Nagao R, Noguchi T, Sato F, Ifuku K. Identification of the basic amino acid residues on the PsbP protein involved in the electrostatic interaction with photosystem II. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2014; 1837:1447-53. [PMID: 24388917 DOI: 10.1016/j.bbabio.2013.12.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 11/28/2013] [Accepted: 12/25/2013] [Indexed: 10/25/2022]
Abstract
The PsbP protein is an extrinsic subunit of photosystem II (PSII) that is essential for photoautotrophic growth in higher plants. Several crystal structures of PsbP have been reported, but the binding topology of PsbP in PSII has not yet been clarified. In this study, we report that the basic pocket of PsbP, which consists of conserved Arg48, Lys143, and Lys160, is important for the electrostatic interaction with the PSII complex. Our release-reconstitution experiment showed that the binding affinities of PsbP-R48A, -K143A, and -K160A mutated proteins to PSII were lower than that of PsbP-WT, and triple mutations of these residues greatly diminished the binding affinity to PSII. Even when maximum possible binding had occurred, the R48A, K143A, and K160A proteins showed a reduced ability to restore the rate of oxygen evolution at low chloride concentrations. Fourier transform infrared resonance (FTIR) difference spectroscopy results were consistent with the above finding, and suggested that these mutated proteins were not able to induce the normal conformational change around the Mn cluster during S1 to S2 transition. Finally, chemical cross-linking experiments suggested that the interaction between the N-terminus of PsbP with PsbE was inhibited by these mutations. These data suggest that the basic pocket of PsbP is important for proper association and interaction with PSII. This article is part of a special issue entitled: photosynthesis research for sustainability: keys to produce clean energy.
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Affiliation(s)
- Taishi Nishimura
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Chihiro Uno
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan
| | - Kunio Ido
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Ryo Nagao
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan
| | - Takumi Noguchi
- Graduate School of Science, Nagoya University, Aichi 464-8602, Japan
| | - Fumihiko Sato
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Kentaro Ifuku
- Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan; Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan.
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Bricker TM, Roose JL, Zhang P, Frankel LK. The PsbP family of proteins. PHOTOSYNTHESIS RESEARCH 2013; 116:235-50. [PMID: 23564479 DOI: 10.1007/s11120-013-9820-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 03/24/2013] [Indexed: 05/06/2023]
Abstract
The PsbP family of proteins consists of 11 evolutionarily related thylakoid lumenal components. These include the archetypal PsbP protein, which is an extrinsic subunit of eukaryotic photosystem II, three PsbP-like proteins (CyanoP of the prokaryotic cyanobacteria and green oxyphotobacteria, and the PPL1 and PPL2 proteins found in many eukaryotes), and seven PsbP-domain (PPD) proteins (PPD1-PPD7, most of which are found in the green plant lineage). All of these possess significant sequence and structural homologies while having very diverse functions. While the PsbP protein has been extensively studied and plays a functional role in the optimization of photosynthetic oxygen evolution at physiological calcium and chloride concentrations, the molecular functions of the other family members are poorly understood. Recent investigations have begun to illuminate the roles that these proteins play in membrane protein complex assembly/stability, hormone biosynthesis, and other metabolic processes. In this review we have examined this functional information within the context of recent advances examining the structure of these components.
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Affiliation(s)
- Terry M Bricker
- Division of Biochemistry and Molecular Biology, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA,
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Uno C, Nagao R, Suzuki H, Tomo T, Noguchi T. Structural Coupling of Extrinsic Proteins with the Oxygen-Evolving Center in Red Algal Photosystem II As Revealed by Light-Induced FTIR Difference Spectroscopy. Biochemistry 2013; 52:5705-7. [DOI: 10.1021/bi4009787] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chihiro Uno
- Division of Material Science,
Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Ryo Nagao
- Division of Material Science,
Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
| | - Hiroyuki Suzuki
- Division of Material Science,
Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
- Department of Biology, Faculty
of Science, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Tatsuya Tomo
- Department of Biology, Faculty
of Science, Tokyo University of Science, Kagurazaka 1-3, Shinjuku-ku, Tokyo 162-8601, Japan
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi,
Saitama 332-0012, Japan
| | - Takumi Noguchi
- Division of Material Science,
Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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