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Li G, Meng J, Yu S, Bai X, Dai J, Song Y, Peng X, Zhao Q. Excited-State Dynamics of a CRABPII-Based Microbial Rhodopsin Mimic. J Phys Chem B 2024. [PMID: 38940335 DOI: 10.1021/acs.jpcb.4c01296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Microbial rhodopsin, a pivotal photoreceptor protein, has garnered widespread application in diverse fields such as optogenetics, biotechnology, biodevices, etc. However, current microbial rhodopsins are all transmembrane proteins, which both complicates the investigation on the photoreaction mechanism and limits their further applications. Therefore, a specific mimic for microbial rhodopsin can not only provide a better model for understanding the mechanism but also can extend the applications. The human protein CRABPII turns out to be a good template for design mimics on rhodopsin due to the convenience in synthesis and the stability after mutations. Recently, Geiger et al. designed a new CRABPII-based mimic M1-L121E on microbial rhodopsin with the 13-cis, syn (13C) isomerization after irradiation. However, it still remains a question as to how similar it is compared with the natural microbial rhodopsin, in particular, in the aspect of the photoreaction dynamics. In this article, we investigate the excited-state dynamics of this mimic by measuring its transient absorption spectra. Our results reveal that there are two components in the solution of mimic M1-L121E at pH 8, known as protonated Schiff base (PSB) and unprotonated Schiff base (USB) states. In both states, the photoreaction process from 13-cis, syn(13C) to all-trans,anti (AT) is faster than that from the inverse direction. In addition, the photoreaction process in the PSB state is faster than that in the USB state. We compared the isomerization time of the PSB state to that of microbial rhodopsin. Our findings indicate that M1-L121E exhibits behaviors similar to those of microbial rhodopsins in the general pattern of PSB isomerization, where the isomerization from 13C to AT is much faster than its inverse direction. However, our results also reveal significant differences in the excited-state dynamics of the mimic relative to the native microbial rhodopsin, including the slower PSB isomerization rates as well as the unusual USB photoreaction dynamics at pH = 8. By elucidating the distinctive characteristics of mimics M1-L121E, this study enhances our understanding of microbial rhodopsin mimics and their potential applications.
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Affiliation(s)
- Gaoshang Li
- Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
| | - Jiajia Meng
- Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
| | - Shuang Yu
- MIIT Key Laboratory of Complex-field Intelligent Exploration, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Xiaolu Bai
- MIIT Key Laboratory of Complex-field Intelligent Exploration, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Jin Dai
- Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
| | - Yin Song
- MIIT Key Laboratory of Complex-field Intelligent Exploration, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
| | - Xubiao Peng
- Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Beijing Academy of Quantum Information Sciences, Beijing 100081, China
| | - Qing Zhao
- Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Beijing Academy of Quantum Information Sciences, Beijing 100081, China
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2
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Nikolaev DM, Shtyrov AA, Vyazmin SY, Vasin AV, Panov MS, Ryazantsev MN. Fluorescence of the Retinal Chromophore in Microbial and Animal Rhodopsins. Int J Mol Sci 2023; 24:17269. [PMID: 38139098 PMCID: PMC10743670 DOI: 10.3390/ijms242417269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Fluorescence of the vast majority of natural opsin-based photoactive proteins is extremely low, in accordance with their functions that depend on efficient transduction of absorbed light energy. However, several recently proposed classes of engineered rhodopsins with enhanced fluorescence, along with the discovery of a new natural highly fluorescent rhodopsin, NeoR, opened a way to exploit these transmembrane proteins as fluorescent sensors and draw more attention to studies on this untypical rhodopsin property. Here, we review the available data on the fluorescence of the retinal chromophore in microbial and animal rhodopsins and their photocycle intermediates, as well as different isomers of the protonated retinal Schiff base in various solvents and the gas phase.
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Affiliation(s)
- Dmitrii M. Nikolaev
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii pr, 198504 St. Petersburg, Russia
| | - Andrey A. Shtyrov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii pr, 198504 St. Petersburg, Russia
| | - Sergey Yu. Vyazmin
- Nanotechnology Research and Education Centre RAS, Saint Petersburg Academic University, 8/3 Khlopina Street, 194021 St. Petersburg, Russia
| | - Andrey V. Vasin
- Institute of Biomedical Systems and Biotechnologies, Peter the Great St. Petersburg Polytechnic University, 29 Polytechnicheskaya Str., 195251 St. Petersburg, Russia
| | - Maxim S. Panov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii pr, 198504 St. Petersburg, Russia
- Center for Biophysical Studies, St. Petersburg State Chemical Pharmaceutical University, Professor Popov str. 14, lit. A, 197022 St. Petersburg, Russia
| | - Mikhail N. Ryazantsev
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii pr, 198504 St. Petersburg, Russia
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3
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Nonaka Y, Hanai S, Katayama K, Imai H, Kandori H. Unique Retinal Binding Pocket of Primate Blue-Sensitive Visual Pigment. Biochemistry 2020; 59:2602-2607. [PMID: 32567852 DOI: 10.1021/acs.biochem.0c00394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The visual pigments of humans contain 11-cis retinal as the chromophore of light perception, and its photoisomerization to the all-trans form initiates visual excitation in our eyes. It is well-known that three isomeric states of retinal (11-cis, all-trans, and 9-cis) are in photoequilibrium at very low temperatures such as 77 K. Here we report the lack of formation of the 9-cis form in monkey blue (MB) at 77 K, as revealed by light-induced difference Fourier transform infrared spectroscopy. This indicates that the chromophore binding pocket of MB does not accommodate the 9-cis form, even though it accommodates the all-trans form by twisting the chromophore. Mutation of the blue-specific tyrosine at position 265 to tryptophan, which is highly conserved in other animal rhodopsins, led to formation of the 9-cis form in MB, suggesting that Y265 is one of the determinants of the unique photochemistry in blue pigments. We also found that 9-cis retinal does not bind to MB opsin, implying that the chromophore binding pocket does not accommodate the 9-cis form at physiological temperature. The unique property of MB is discussed on the basis of the results presented here.
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Affiliation(s)
- Yuki Nonaka
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Shunpei Hanai
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Kota Katayama
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan.,OptoBioTechnology Research Center, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Hiroo Imai
- Primate Research Institute, Kyoto University, Inuyama 484-8506, Japan
| | - Hideki Kandori
- Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan.,OptoBioTechnology Research Center, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
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4
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Chang CF, Kuramochi H, Singh M, Abe-Yoshizumi R, Tsukuda T, Kandori H, Tahara T. Acid-base equilibrium of the chromophore counterion results in distinct photoisomerization reactivity in the primary event of proteorhodopsin. Phys Chem Chem Phys 2019; 21:25728-25734. [PMID: 31720623 DOI: 10.1039/c9cp04991f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proteorhodopsin (PR) is a proton-pumping rhodopsin, and it is known to exhibit a multi-phasic decay of the excited-state population in the primary process. So far, this complex excited-state decay has been attributed to the branching of the relaxation pathway on the excited-state potential energy surface. However, a recent ultrafast spectroscopic study on a sodium-pumping rhodopsin suggested that such a complex decay may originate from the heterogeneity in the ground state due to the acid-base equilibrium of the counterion of the protonated retinal Schiff base (PRSB). In this study, we studied the excited-state dynamics of PR at pH 11 and 4, in which the counterion of the PRSB, Asp97, is completely deprotonated and protonated, respectively. The obtained time-resolved absorption data revealed that the excited-state lifetime is decisively governed by the protonation state of Asp97, and the photoisomerization of the PRSB chromophore proceeds faster and more efficiently when Asp97 is deprotonated. This conclusion was further supported by high similarity of the excited-state dynamics between PR at pH 4 and the D97N mutant in which Asp97 is replaced with neutral Asn. The results of this study suggest that the protonation state of the PRSB counterion plays a decisive role in determining the excited-state dynamics and the photoisomerization reactivity of rhodopsins in general, by making a significant influence on the exited-state potential energy surface of the PRSB chromophore.
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Affiliation(s)
- Chun-Fu Chang
- Molecular Spectroscopy Laboratory, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan.
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5
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Tahara S, Takeuchi S, Abe-Yoshizumi R, Inoue K, Ohtani H, Kandori H, Tahara T. Origin of the Reactive and Nonreactive Excited States in the Primary Reaction of Rhodopsins: pH Dependence of Femtosecond Absorption of Light-Driven Sodium Ion Pump Rhodopsin KR2. J Phys Chem B 2018; 122:4784-4792. [DOI: 10.1021/acs.jpcb.8b01934] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | - Keiichi Inoue
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | - Hiroyuki Ohtani
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
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6
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Zanetti-Polzi L, Aschi M, Amadei A, Daidone I. Alternative Electron-Transfer Channels Ensure Ultrafast Deactivation of Light-Induced Excited States in Riboflavin Binding Protein. J Phys Chem Lett 2017; 8:3321-3327. [PMID: 28665138 DOI: 10.1021/acs.jpclett.7b01575] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Flavoproteins, containing flavin chromophores, are enzymes capable of transferring electrons at very high speeds. The ultrafast photoinduced electron-transfer (ET) kinetics of riboflavin binding protein to the excited riboflavin was studied by femtosecond spectroscopy and found to occur within a few hundred femtoseconds [ Zhong and Zewail, Proc. Natl. Acad. Sci. U.S.A. 2001, 98, 11867-11872 ]. This ultrafast kinetics was attributed to the presence of two aromatic rings that could transfer the electron to riboflavin: the side chains of tryptophan 156 and tyrosine 75. However, the underlying ET mechanism remained unclear. Here, using a hybrid quantum mechanical-molecular dynamics approach, we perform ET dynamics simulations taking into account the motion of the protein and the solvent upon ET. This approach reveals that ET occurs via a major reaction channel involving tyrosine 75 (83%) and a minor one involving tryptophan 156 (17%). We also show that the protein environment is designed to ensure the fast quenching of the riboflavin excited state.
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Affiliation(s)
- Laura Zanetti-Polzi
- Department of Physical and Chemical Sciences, University of L'Aquila , via Vetoio (Coppito 1), 67010 L'Aquila, Italy
| | - Massimiliano Aschi
- Department of Physical and Chemical Sciences, University of L'Aquila , via Vetoio (Coppito 1), 67010 L'Aquila, Italy
| | - Andrea Amadei
- Department of Chemical and Technological Sciences, University of Rome "Tor Vergata" , Via della Ricerca Scientifica, 00185 Rome, Italy
| | - Isabella Daidone
- Department of Physical and Chemical Sciences, University of L'Aquila , via Vetoio (Coppito 1), 67010 L'Aquila, Italy
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7
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Development of Sub 10 fs Visible-NIR, UV, and DUV Pulses and Their Applications to Ultrafast Spectroscopy. PHOTONICS 2016. [DOI: 10.3390/photonics3040064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Agarwalla BK, Harbola U, Hua W, Zhang Y, Mukamel S. Coherent (photon) vs incoherent (current) detection of multidimensional optical signals from single molecules in open junctions. J Chem Phys 2015; 142:212445. [DOI: 10.1063/1.4919955] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Upendra Harbola
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Weijie Hua
- Department of Chemistry, University of California, Irvine, California 92697, USA
| | - Yu Zhang
- Department of Chemistry, University of California, Irvine, California 92697, USA
| | - Shaul Mukamel
- Department of Chemistry, University of California, Irvine, California 92697, USA
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9
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Chosrowjan H, Taniguchi S, Tanaka F. Ultrafast fluorescence upconversion technique and its applications to proteins. FEBS J 2015; 282:3003-15. [DOI: 10.1111/febs.13180] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 12/15/2014] [Accepted: 12/17/2014] [Indexed: 11/29/2022]
Affiliation(s)
- Haik Chosrowjan
- Division of Laser Biochemistry; Institute for Laser Technology; Utsubo-Honmachi; Nishiku Osaka Japan
| | - Seiji Taniguchi
- Division of Laser Biochemistry; Institute for Laser Technology; Utsubo-Honmachi; Nishiku Osaka Japan
| | - Fumio Tanaka
- Division of Laser Biochemistry; Institute for Laser Technology; Utsubo-Honmachi; Nishiku Osaka Japan
- Department of Chemistry; Faculty of Science; Chulalongkorn University; Bangkok Thailand
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10
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Polli D, Weingart O, Brida D, Poli E, Maiuri M, Spillane KM, Bottoni A, Kukura P, Mathies RA, Cerullo G, Garavelli M. Wavepacket Splitting and Two-Pathway Deactivation in the Photoexcited Visual Pigment Isorhodopsin. Angew Chem Int Ed Engl 2014; 53:2504-7. [DOI: 10.1002/anie.201309867] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Indexed: 11/10/2022]
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11
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Polli D, Weingart O, Brida D, Poli E, Maiuri M, Spillane KM, Bottoni A, Kukura P, Mathies RA, Cerullo G, Garavelli M. Aufspaltung des Wellenpakets und Doppelpfad-Desaktivierung im photoangeregten Sehpigment Isorhodopsin. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309867] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Ernst OP, Lodowski DT, Elstner M, Hegemann P, Brown L, Kandori H. Microbial and animal rhodopsins: structures, functions, and molecular mechanisms. Chem Rev 2014; 114:126-63. [PMID: 24364740 PMCID: PMC3979449 DOI: 10.1021/cr4003769] [Citation(s) in RCA: 770] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Indexed: 12/31/2022]
Affiliation(s)
- Oliver P. Ernst
- Departments
of Biochemistry and Molecular Genetics, University of Toronto, 1 King’s College Circle, Medical Sciences Building, Toronto, Ontario M5S 1A8, Canada
| | - David T. Lodowski
- Center
for Proteomics and Bioinformatics, Case
Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Marcus Elstner
- Institute
for Physical Chemistry, Karlsruhe Institute
of Technology, Kaiserstrasse
12, 76131 Karlsruhe, Germany
| | - Peter Hegemann
- Institute
of Biology, Experimental Biophysics, Humboldt-Universität
zu Berlin, Invalidenstrasse
42, 10115 Berlin, Germany
| | - Leonid
S. Brown
- Department
of Physics and Biophysics Interdepartmental Group, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Hideki Kandori
- Department
of Frontier Materials, Nagoya Institute
of Technology, Showa-ku, Nagoya 466-8555, Japan
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13
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Rivalta I, Nenov A, Garavelli M. Modelling retinal chromophores photoisomerization: from minimal models in vacuo to ultimate bidimensional spectroscopy in rhodopsins. Phys Chem Chem Phys 2014; 16:16865-79. [DOI: 10.1039/c3cp55211j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modelling of retinal photoisomerization in different environments is reviewed and ultimate ultrafast electronic spectroscopy is proposed for obtaining new insights.
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Affiliation(s)
- Ivan Rivalta
- Université de Lyon
- CNRS
- 69364 Lyon, Cedex 07, France
- Dipartimento di Chimica “Giacomo Ciamician”
- Università di Bologna
| | - Artur Nenov
- Dipartimento di Chimica “Giacomo Ciamician”
- Università di Bologna
- 40126 Bologna, Italy
| | - Marco Garavelli
- Université de Lyon
- CNRS
- 69364 Lyon, Cedex 07, France
- Dipartimento di Chimica “Giacomo Ciamician”
- Università di Bologna
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14
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Yabushita A, Kobayashi T, Tsuda M. Time-Resolved Spectroscopy of Ultrafast Photoisomerization of Octopus Rhodopsin under Photoexcitation. J Phys Chem B 2012; 116:1920-6. [DOI: 10.1021/jp209356s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Atsushi Yabushita
- Department
of Electrophysics, National Chiao-Tung University, Hsinchu 300, Taiwan
| | - Takayoshi Kobayashi
- Department
of Electrophysics, National Chiao-Tung University, Hsinchu 300, Taiwan
- CREST, Japan Science and Technology Agency, 4-1-8, Honcho, Kawaguchi, Saitama
332-0012, Japan
- Department
of Applied Physics
and Chemistry and Institute for Laser Science, University of Electro-Communications, 1-5-1, Chofugaoka, Chofu,
Tokyo 182-8585, Japan
- Institute
of Laser Engineering, Osaka University,
2-6 Yamada-oka, Suita, Osaka 565-0971,
Japan
| | - Motoyuki Tsuda
- Kagawa School of
Pharmaceutical
Sciences, Tokushima Bunri University, 1314-1
Shido, Sanuki, Kagawa 769-2193, Japan
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15
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Conical intersection dynamics of the primary photoisomerization event in vision. Nature 2010; 467:440-3. [DOI: 10.1038/nature09346] [Citation(s) in RCA: 678] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Accepted: 07/02/2010] [Indexed: 11/08/2022]
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16
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Rupenyan A, van Stokkum IHM, Arents JC, van Grondelle R, Hellingwerf KJ, Groot ML. Reaction pathways of photoexcited retinal in proteorhodopsin studied by pump-dump-probe spectroscopy. J Phys Chem B 2010; 113:16251-6. [PMID: 19928893 DOI: 10.1021/jp9065289] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Proteorhodopsin (pR) is a membrane-embedded proton pump from the microbial rhodopsin family. Light absorption by its retinal chromophore initiates a photocycle, driven by trans/cis isomerization on the femtosecond to picosecond time scales. Here, we report a study on the photoisomerization dynamics of the retinal chromophore of pR, using dispersed ultrafast pump-dump-probe spectroscopy. The application of a pump pulse initiates the photocycle, and with an appropriately tuned dump pulse applied at a time delay after the dump, the molecules in the initial stages of the photochemical process can be de-excited and driven back to the ground state. In this way, we were able to resolve an intermediate on the electronic ground state that represents chromophores that are unsuccessful in isomerization. In particular, the fractions of molecules that undergo slow isomerization (20 ps) have a high probability to enter this state rather than the isomerized K-state. On the ground state reaction surface, return to the stable ground state conformation via a structural or vibrational relaxation occurs in 2-3 ps. Inclusion of this intermediate in the kinetic scheme led to more consistent spectra of the retinal-excited state, and to a more accurate estimation of the quantum yield of isomerization (Phi = 0.4 at pH 6).
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Affiliation(s)
- Alisa Rupenyan
- Department of Physics and Astronomy, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
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17
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Das S, Varghese S, Kumar NSS. Butadiene-based photoresponsive soft materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:1598-1609. [PMID: 19627077 DOI: 10.1021/la901962k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The creation of stimuli-responsive materials offers considerable challenges in the area of material science. The use of light as an external stimulus has particular advantages because it can bring about rapid transformations in remote regions in a very precise manner. Naturally occurring photoresponsive systems provide the motivation for developing corresponding artificial systems using molecular self-assembly to address issues such as quantum efficiency, selectivity, and amplification. A practical strategy for developing photoresponsive materials is to utilize molecules that can undergo considerable change in shape on photoisomerization. Although the photoisomerization of polyenes between their linear all-trans isomer and bent cis isomers has been extensively investigated in solution and in organized media because of its relevance to naturally occurring photoresponsive systems, its use in developing artificial photoresponsive systems has not been well explored. This feature article provides an overview of photoresponsive soft materials such as liquid crystals and gels with special emphasis on our recent studies related to the use of the butadiene chromophore for the design of such materials. The role of molecular self-assembly in controlling the photochemical and photophysical properties of these molecules is also discussed.
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Affiliation(s)
- Suresh Das
- Photosciences and Photonics Section, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology, Trivandrum-695 019, Kerala, India
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18
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Jee AY, Bae E, Lee M. Internal Twisting Dynamics of Dicyanovinyljulolidine in Polymers. J Phys Chem B 2009; 113:16508-12. [DOI: 10.1021/jp908430w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ah-Young Jee
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Eunhye Bae
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Minyung Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 120-750, Republic of Korea
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19
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Abstract
Rhodopsin is a member of the family of G-protein-coupled receptors (GPCRs), and is an excellent molecular switch for converting light signals into electrical response of the rod photoreceptor cells. Light initiates cis-trans isomerization of the retinal chromophore of rhodopsin and leads to the formation of several thermolabile intermediates during the bleaching process. Recent investigations have identified spectrally distinguishable two intermediate states that can interact with the retinal G-protein, transducin, and have elucidated the functional sharing of these intermediates. The initial contact with GDP-bound G-protein occurs in the meta-Ib intermediate state, which has a protonated Schiff base as its chromophore. The meta-Ib intermediate in the complex with the G-protein converts to the meta-II intermediate with releasing GDP from the alpha-subunit of the G protein. Meta-II has a de-protonated Schiff base chromophore and induces binding of GTP to the alpha-subunit of the G-protein. Thus, the GDP-GTP exchange reaction, namely G-protein activation, by rhodopsin proceeds through at least two steps, with conformational changes in both rhodopsin and the G-protein.
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Affiliation(s)
- Yoshinori Shichida
- Department of Biophysics, Graduate School of Science, Kyoto University, Kyoto, CREST, Japan Science and Technology Agency, Japan.
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20
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Frutos LM, Andruniów T, Santoro F, Ferré N, Olivucci M. Tracking the excited-state time evolution of the visual pigment with multiconfigurational quantum chemistry. Proc Natl Acad Sci U S A 2007; 104:7764-9. [PMID: 17470789 PMCID: PMC1876521 DOI: 10.1073/pnas.0701732104] [Citation(s) in RCA: 221] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2007] [Indexed: 11/18/2022] Open
Abstract
The primary event that initiates vision is the photoinduced isomerization of retinal in the visual pigment rhodopsin (Rh). Here, we use a scaled quantum mechanics/molecular mechanics potential that reproduces the isomerization path determined with multiconfigurational perturbation theory to follow the excited-state evolution of bovine Rh. The analysis of a 140-fs trajectory provides a description of the electronic and geometrical changes that prepare the system for decay to the ground state. The data uncover a complex change of the retinal backbone that, at approximately 60-fs delay, initiates a space saving "asynchronous bicycle-pedal or crankshaft" motion, leading to a conical intersection on a 110-fs time scale. It is shown that the twisted structure achieved at decay features a momentum that provides a natural route toward the photoRh structure recently resolved by using femtosecond-stimulated Raman spectroscopy.
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Affiliation(s)
- Luis Manuel Frutos
- Dipartimento di Chimica, Università di Siena, via Aldo Moro 2, I-53100 Siena, Italy
| | - Tadeusz Andruniów
- Institute of Physical and Theoretical Chemistry, Department of Chemistry, Wroclaw University of Technology, 27 Wyb. Wyspianskiego, 50-370, Wroclaw, Poland
| | - Fabrizio Santoro
- Istituto per i Processi Chimico-Fisici, Consiglio Nazionale delle Ricerche, Via Moruzzi 1, I-56124 Pisa, Italy; and
| | - Nicolas Ferré
- Laboratoire de Chimie Théorique et de Modélisation Moléculaire, Unité Mixte de Recherche 6517, Centre National de la Recherche Scientifique, Université de Provence, Case 521, Faculté de Saint-Jérôme, Avenue Esc. Normandie Niemen, 13397 Marseille Cedex 20, France
| | - Massimo Olivucci
- Dipartimento di Chimica, Università di Siena, via Aldo Moro 2, I-53100 Siena, Italy
- Department of Chemistry, Bowling Green State University, Bowling Green, OH 43403
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21
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Uda M, Mizutani T, Hayakawa J, Momotake A, Ikegami M, Nagahata R, Arai T. Photoisomerization of Stilbene Dendrimers: The Need for a Volume-conserving Isomerization Mechanism¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2002)0760596posdtn2.0.co2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Conti I, Bernardi F, Orlandi G, Garavelli M. Substituent controlled spectroscopy and excited state topography of retinal chromophore models: fluorinated and methoxy-substituted protonated Schiff bases. Mol Phys 2007. [DOI: 10.1080/00268970500417911] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Ding L, Russell TP. Photophysical Properties of Perdeuteratedtrans-Stilbene Grafted Polystyrene. Macromolecules 2006. [DOI: 10.1021/ma061055+] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Liu RSH, Yang LY, Hirata C, Liu J, Ho TI. Hula-Twist. A Stereoselective and Regioselective Photoisomerization Reaction Mechanism. J CHIN CHEM SOC-TAIP 2006. [DOI: 10.1002/jccs.200600025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Liu RSH, Hammond GS, Mirzadegan T. Possible role of the 11-cis-retinyl conformation in controlling the dual decay processes of excited rhodopsin. Proc Natl Acad Sci U S A 2005; 102:10783-7. [PMID: 16043701 PMCID: PMC1182415 DOI: 10.1073/pnas.0501665102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In this work, we examine how the reported dual decay processes of rhodopsin and binding site stereospecificity can be accounted for by the recently available crystal structure of rhodopsin. Arguments are presented for possible presence of two rhodopsin "rotamers" that fit within the binding cavity. Directed pathways of decay could account for the observed excited decay processes. We summarize evidence for the possible existence of two different ground-state configurations that give rise to two different excited species.
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Affiliation(s)
- Robert S H Liu
- Department of Chemistry, University of Hawaii, 2545 The Mall, Honolulu, HI 96822, USA.
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26
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Abstract
In reexamining medium effects on photochemical reactions, we have emphasized those on unequilibrated excited species such as the Franck-Condon species. Despite recent advances in femtochemistry, such a discussion in molecular photochemistry is uncommon, and the problem remains challenging on account of the extremely short-lived excited species. However, in such cases, a small perturbation resulting from, for example, weak guest-host interactions could turn into a determining factor in dictating the course of a photochemical channel of deactivation. Examples of medium-directed diabatic processes have been examined with this idea in mind. A modified view on rhodopsin photoisomerization is presented along with the consideration that confinement does not necessarily lead to inhibition of reactions of the trapped substrate.
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Affiliation(s)
- Robert S H Liu
- Department of Chemistry, University of Hawaii, 2545 The Mall, Honolulu, Hawaii 96822, USA.
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27
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Momotake A, Arai T. Synthesis, excited state properties, and dynamic structural change of photoresponsive dendrimers. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.05.075] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Chosrowjan H, Taniguchi S, Mataga N, Unno M, Yamauchi S, Hamada N, Kumauchi M, Tokunaga F. Low-Frequency Vibrations and Their Role in Ultrafast Photoisomerization Reaction Dynamics of Photoactive Yellow Protein. J Phys Chem B 2004. [DOI: 10.1021/jp031126w] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haik Chosrowjan
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Seiji Taniguchi
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Noboru Mataga
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Masashi Unno
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Seigo Yamauchi
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Norio Hamada
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Masato Kumauchi
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
| | - Fumio Tokunaga
- Institute for Laser Technology, Utsubo-Hommachi 1-8-4, Nishiku, Osaka 550-0004, Japan, Institute for Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan, and Department of Earth and Space Science, Osaka University, Toyonaka, Osaka 550-0043, Japan
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29
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Cembran A, Bernardi F, Olivucci M, Garavelli M. Excited-state singlet manifold and oscillatory features of a nonatetraeniminium retinal chromophore model. J Am Chem Soc 2003; 125:12509-19. [PMID: 14531695 DOI: 10.1021/ja030215j] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this paper we use ab initio multireference Møller-Plesset second-order perturbation theory computations to map the first five singlet states (S(0), S(1), S(2), S(3), and S(4)) along the initial part of the photoisomerization coordinate for the isolated rhodopsin chromophore model 4-cis-gamma-methylnona-2,4,6,8-tetraeniminium cation. We show that this information not only provides an explanation for the spectral features associated to the chromophore in solution but also, subject to a tentative hypothesis on the effect of the protein cavity, may be employed to explain/assign the ultrafast near-IR excited-state absorption, stimulated emission, and transient excited-state absorption bands observed in rhodopsin proteins (e.g. rhodopsin and bacteriorhodopsin). We also show that the results of vibrational frequency computations reveal a general structure for the first (S(1)) excited-state energy surface of PSBs that is consistent with the existence of the coherent oscillatory motions observed both in solution and in bacteriorhodopsin.
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Affiliation(s)
- Alessandro Cembran
- Dipartimento di Chimica, Università di Siena, via Aldo Moro, Siena, I-53100 Italy
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30
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Liu RSH, Colmenares LU. The molecular basis for the high photosensitivity of rhodopsin. Proc Natl Acad Sci U S A 2003; 100:14639-44. [PMID: 14657350 PMCID: PMC299751 DOI: 10.1073/pnas.2536769100] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2003] [Indexed: 11/18/2022] Open
Abstract
Based on structural information derived from the F NMR data of labeled rhodopsins, rhodopsin crystal structure, and excited-state properties of model polyenes, we propose a molecular mechanism that accounts specifically for the causes of the well-known enhanced photoreactivity of rhodopsin (increased rates and quantum yield of isomerization). It involves the key features of close proximity of C-187 to H-12 and chromophore bond lengthening upon light absorption. The resultant "sudden punch" to H-12 triggers dual processes of decay of the Franck-Condon-excited rhodopsin, a productive directed photoisomerization and a nonproductive decay returning to the ground state as two separate molecular pathways [based on real-time fluorescence results of Chosrowjan, H., Mataga, N., Shibata, Y., Tachibanaki, S., Kandori, H., Shichida, Y., Okada, T. & Kouyama, T. (1998) J. Am. Chem. Soc. 120, 9706-9707]. The two processes are controlled by the local protein structure: an empty space provided by the intradiscal loop connecting transmembrane helices 4 and 5 and a protein wall composed of amino acid units in transmembrane 3. Suggestions, involving retinal analogs and rhodopsin mutants, to improve the unusually high photosensitivity of rhodopsin are proposed.
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Affiliation(s)
- Robert S H Liu
- Department of Chemistry, University of Hawaii, Honolulu, HI 96822, USA.
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31
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Furutani Y, Kandori H, Shichida Y. Structural changes in lumirhodopsin and metarhodopsin I studied by their photoreactions at 77 K. Biochemistry 2003; 42:8494-500. [PMID: 12859195 DOI: 10.1021/bi034438y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The functional process of rhodopsin is initiated by cis-trans photoisomerization of the retinal chromophore. One of the primary intermediates, bathorhodopsin (Batho), is stable at 77 K, and structural changes in Batho are limited around the chromophore. Then, relaxation of Batho leads to helix opening at the cytoplasmic surface in metarhodopsin II (Meta II), which allows activation of a G protein transducin. Two intermediates, lumirhodopsin (Lumi) and metarhodopsin I (Meta I), appear between Batho and Meta II, and can be stabilized at 200 and 240 K, respectively. A photoaffinity labeling experiment reported that formation of Lumi accompanied flip-over of the beta-ionone ring of the retinal chromophore so that the ring portion was attached to Ala169 of helix IV [Borhan, B., Souto, M. L., Imai, H., Shichida, Y., and Nakanishi, K. (2000) Science 288, 2209-2212]. According to the crystal structure of bovine rhodopsin, the distance between the labeled C3 atom of the chromophore and Ala169 was >15 A [Palczewski, K., Kumasaka, T., Hori, T., Behnke, C. A., Motoshima, H., Fox, B. A., Le Trong, I., Teller, D. C., Okada, T., Stenkamp, R. E., Yamamoto, M., and Miyano, M. (2000) Science 289, 739-745]. These facts suggest that global protein structural changes such as helix motions take place in Lumi. In the study presented here, Lumi and Meta I are illuminated at 77 K, and protein structural changes are probed by Fourier transform infrared (FTIR) spectroscopy. We found that Lumi can be photoconverted to rhodopsin at 77 K from the IR spectral analysis of the photoproducts of Lumi. In contrast, more complex spectra were obtained for the photoproducts of Meta I at 77 K, implying that the protein structure of Meta I is considerably altered so as not to be reverted to the original state at 77 K. Thus, these photoreaction experiments with Lumi and Meta I at 77 K suggested the presence of global protein structural changes in the process between them. We concluded that the helix motions do not occur at Lumi, but at Meta I, and the flip-over of the beta-ionone ring reported by the photoaffinity labeling takes place through the specific reaction channel without a change in the global structure.
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Affiliation(s)
- Yuji Furutani
- Department of Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
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32
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33
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Uda M, Mizutani T, Hayakawa J, Momotake A, Ikegami M, Nagahata R, Arai T. Photoisomerization of stilbene dendrimers: the need for a volume-conserving isomerization mechanisms. Photochem Photobiol 2002; 76:596-605. [PMID: 12511039 DOI: 10.1562/0031-8655(2002)076<0596:posdtn>2.0.co;2] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Highly branched stilbene dendrimers were synthesized and their photochemical behavior was studied. Even the stilbene dendrimer with molecular weight over 6500 underwent trans-cis isomerization in the excited singlet state within the lifetime of 10 ns. The photoisomerization of C=C double bond of stilbene dendrimers in the excited state may proceed by a volume-conserving novel mechanism such as hula-twist rather than conventional 180 degrees rotation around the C=C double bond based on fluorescence and isomerization experiments.
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Affiliation(s)
- Mayuko Uda
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki, Japan
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34
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Lami A, Santoro F. Stable laser control of complex multilevel systems using a weak-intensity multicolor gaussian pulse. Chem Phys 2002. [DOI: 10.1016/s0301-0104(02)00330-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Kandori H, Tomioka H, Sasabe H. Excited-State Dynamics of pharaonis Phoborhodopsin Probed by Femtosecond Fluorescence Spectroscopy. J Phys Chem A 2002. [DOI: 10.1021/jp012447f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hideki Kandori
- Department of Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555, Japan
| | - Hiroaki Tomioka
- Department of Chemistry, Faculty of Education, Saitama University, 255 Shimo-Ohokubo, Saitama 338-8570, Japan
| | - Hiroyuki Sasabe
- Department of Photonics Materials Science, Chitose Institute of Science & Technology, 758-65 Bibi, Chitose, Hokkaido 066-8655, Japan
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36
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Nagata T, Oura T, Terakita A, Kandori H, Shichida Y. Isomer-Specific Interaction of the Retinal Chromophore with Threonine-118 in Rhodopsin. J Phys Chem A 2002. [DOI: 10.1021/jp0124488] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomoko Nagata
- Department of Biophysics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Tomonori Oura
- Department of Biophysics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Akihisa Terakita
- Department of Biophysics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Kandori
- Department of Biophysics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yoshinori Shichida
- Department of Biophysics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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37
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Mataga N, Chosrowjan H, Shibata Y, Imamoto Y, Kataoka M, Tokunaga F. Ultrafast photoinduced reaction dynamics of photoactive yellow protein (PYP): observation of coherent oscillations in the femtosecond fluorescence decay dynamics. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(01)01448-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Abstract
ALiu and Hammond recently reasoned that the hula-twist (HT), a volume-conserving cis-trans isomerization mechanism, is involved in reactions of confined systems. We now show that HT can be applied to various reported photochemical isomerization of chromophores (small organic systems as well as photoactive bio-pigments). The results, when taken as a whole, argue powerfully that HT is a common supramolecular photoisomerization reaction mechanism.
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Affiliation(s)
- R S Liu
- Department of Chemistry, University of Hawaii, Honolulu 96822, USA.
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39
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Hahn S, Stock G. Theoretical Description of Secondary Emission Reflecting Ultrafast Nonadiabatic Isomerization. J Phys Chem A 2001. [DOI: 10.1021/jp003788g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Susanne Hahn
- Theoretical Quantum Dynamics, Faculty of Physics, University Freiburg, D-79104 Freiburg, Germany
| | - Gerhard Stock
- Theoretical Quantum Dynamics, Faculty of Physics, University Freiburg, D-79104 Freiburg, Germany
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40
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Kandori H, Furutani Y, Nishimura S, Shichida Y, Chosrowjan H, Shibata Y, Mataga N. Excited-state dynamics of rhodopsin probed by femtosecond fluorescence spectroscopy. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(00)01457-3] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Metzler DE, Metzler CM, Sauke DJ. Light and Life. Biochemistry 2001. [DOI: 10.1016/b978-012492543-4/50026-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Mataga N, Chosrowjan H, Shibata Y, Tanaka F, Nishina Y, Shiga K. Dynamics and Mechanisms of Ultrafast Fluorescence Quenching Reactions of Flavin Chromophores in Protein Nanospace. J Phys Chem B 2000. [DOI: 10.1021/jp002145y] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Fumio Tanaka
- Mie Prefectural College of Nursing, Yumegaoka, 1-1-1, Tsu 514-0116, Japan
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43
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44
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González-Luque R, Garavelli M, Bernardi F, Merchán M, Robb MA, Olivucci M. Computational evidence in favor of a two-state, two-mode model of the retinal chromophore photoisomerization. Proc Natl Acad Sci U S A 2000; 97:9379-84. [PMID: 10944211 PMCID: PMC16872 DOI: 10.1073/pnas.97.17.9379] [Citation(s) in RCA: 259] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this paper we use ab initio multiconfigurational second-order perturbation theory to establish the intrinsic photoisomerization path model of retinal chromophores. This is accomplished by computing the ground state (S(0)) and the first two singlet excited-state (S(1), S(2)) energies along the rigorously determined photoisomerization coordinate of the rhodopsin chromophore model 4-cis-gamma-methylnona-2,4,6,8-tetraeniminium cation and the bacteriorhodopsin chromophore model all-trans-hepta-2,4, 6-trieniminium cation in isolated conditions. The computed S(2) and S(1) energy profiles do not show any avoided crossing feature along the S(1) reaction path and maintain an energy gap >20 kcal small middle dotmol(-1). In addition, the analysis of the charge distribution shows that there is no qualitative change in the S(2) and S(1) electronic structure along the path. Thus, the S(1) state maintains a prevalent ionic (hole-pair) character whereas the S(2) state maintains a covalent (dot-dot) character. These results, together with the analysis of the S(1) reaction coordinate, support a two-state, two-mode model of the photoisomerization that constitutes a substantial revision of the previously proposed models.
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Affiliation(s)
- R González-Luque
- Departamento de Quimica-Fisica, Universitat de València, Valencia, Spain
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45
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Abstract
Movement of the ligand/receptor complex in rhodopsin (Rh) has been traced. Bleaching of diazoketo rhodopsin (DK-Rh) containing 11-cis-3-diazo-4-oxo-retinal yields batho-, lumi-, meta-I-, and meta-II-Rh intermediates corresponding to those of native Rh but at lower temperatures. Photoaffinity labeling of DK-Rh and these bleaching intermediates shows that the ionone ring cross-links to tryptophan-265 on helix F in DK-Rh and batho-Rh, and to alanine-169 on helix D in lumi-, meta-I-, and meta-II-Rh intermediates. It is likely that these movements involving a flip-over of the chromophoric ring trigger changes in cytoplasmic membrane loops resulting in heterotrimeric guanine nucleotide-binding protein (G protein) activation.
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Affiliation(s)
- B Borhan
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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46
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Mataga N, Chosrowjan H, Shibata Y, Imamoto Y, Tokunaga F. Effects of Modification of Protein Nanospace Structure and Change of Temperature on the Femtosecond to Picosecond Fluorescence Dynamics of Photoactive Yellow Protein. J Phys Chem B 2000. [DOI: 10.1021/jp994205+] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Sanchez-Galvez A, Hunt P, Robb MA, Olivucci M, Vreven T, Schlegel HB. Ultrafast Radiationless Deactivation of Organic Dyes: Evidence for a Two-State Two-Mode Pathway in Polymethine Cyanines. J Am Chem Soc 2000. [DOI: 10.1021/ja993985x] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adelaida Sanchez-Galvez
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Patricia Hunt
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Michael A. Robb
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Massimo Olivucci
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Thom Vreven
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - H. Bernhard Schlegel
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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48
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Mathies RA. Photons, femtoseconds and dipolar interactions: a molecular picture of the primary events in vision. ACTA ACUST UNITED AC 2000; 224:70-84; discussion 84-101. [PMID: 10614047 DOI: 10.1002/9780470515693.ch6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
The first 200 femtoseconds in the life of a photoexcited rhodopsin molecule are extremely important for the development of visual sensation. Immediately upon excitation, a dramatic change in the charge distribution of the cationic 11-cis-retinal protonated Schiff base chromophore occurs that is quantitated by the change in electronic dipole moment of approximately 15 Debye. The opsin protein tunes the absorption maximum of the pigment to the blue or to the red enabling colour vision by placing dipolar rather than charged residues in the chromophore binding site to differentially stabilize either the ground or the excited state charge distribution. Resonance Raman intensity analysis reveals that the 11-cis-retinal chromophore then distorts violently about the C11 = C12 double bond, reaching torsional angles of approximately 70 degrees in only 30 fs. This rapid torsional distortion is driven by the non-bonded interaction between the 13-methyl group and the 10-hydrogen that is unique to the 11-cis configuration of the chromophore. The excited state depopulates in approximately 50 fs through a rapid and vibrationally coherent transition to the ground electronic state manifold with relaxation to the formally trans photoproduct complete in only 200 fs. This unusually fast and efficient isomerization process establishes a new paradigm for condensed phase photochemical reactions.
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Affiliation(s)
- R A Mathies
- Department of Chemistry, University of California, Berkeley 94720-1460, USA
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Mathies R, Lugtenburg J. Chapter 2 The primary photoreaction of rhodopsin. HANDBOOK OF BIOLOGICAL PHYSICS 2000. [DOI: 10.1016/s1383-8121(00)80005-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Tsiper EV, Chernyak V, Tretiak S, Mukamel S. Density-matrix-spectroscopic algorithm for excited-state adiabatic surfaces and molecular dynamics of a protonated Schiff base. J Chem Phys 1999. [DOI: 10.1063/1.478743] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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