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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; 128:7712-7721. [PMID: 38940335 DOI: 10.1021/acs.jpcb.4c01296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [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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Intrinsic photoisomerization dynamics of protonated Schiff-base retinal. Nat Commun 2019; 10:1210. [PMID: 30872581 PMCID: PMC6418104 DOI: 10.1038/s41467-019-09225-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 02/27/2019] [Indexed: 11/24/2022] Open
Abstract
The retinal protonated Schiff-base (RPSB) in its all-trans form is found in bacterial rhodopsins, whereas visual rhodopsin proteins host 11-cis RPSB. In both cases, photoexcitation initiates fast isomerization of the retinal chromophore, leading to proton transport, storage of chemical energy or signaling. It is an unsolved problem, to which degree this is due to protein interactions or intrinsic RPSB quantum properties. Here, we report on time-resolved action-spectroscopy studies, which show, that upon photoexcitation, cis isomers of RPSB have an almost barrierless fast 400 fs decay, whereas all-trans isomers exhibit a barrier-controlled slow 3 ps decay. Moreover, formation of the 11-cis isomer is greatly favored for all-trans RPSB when isolated. The very fast photoresponse of visual photoreceptors is thus directly related to intrinsic retinal properties, whereas bacterial rhodopsins tune the excited state potential-energy surface to lower the barrier for particular double-bond isomerization, thus changing both the timescale and specificity of the photoisomerization. The primary photoresponse of protonated Schiff-base retinal in visual and bacterial rhodopsins is fast sub-ps isomerisation. Here, the authors show that the fast photoisomerization of rhodopsin is related to an intrinsic retinal property, whereas bacterial rhodopsins tune the excited-state potential-energy surface and improve the isomerization timescale and specificity.
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Sala M, Egorova D. Quantum dynamics of multi-dimensional rhodopsin photoisomerization models: Approximate versus accurate treatment of the secondary modes. Chem Phys 2018. [DOI: 10.1016/j.chemphys.2018.07.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Grabarek D, Andruniów T. Initial excited-state relaxation of locked retinal protonated schiff base chromophore. An insight from coupled cluster and multireference perturbation theory calculations. J Comput Chem 2018; 39:1720-1727. [PMID: 29727036 DOI: 10.1002/jcc.25346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/06/2018] [Accepted: 04/12/2018] [Indexed: 11/07/2022]
Abstract
The initial S1 excited-state relaxation of retinal protonated Schiff base (RPSB) analog with central C11C12 double bond locked by eight-membered ring (locked-11.8) was investigated by means of multireference perturbation theory methods (XMCQDPT2, XMS-CASPT2, MS-CASPT2) as well as single-reference coupled-cluster CC2 method. The analysis of XMCQDPT2-based geometries reveals rather weak coupling between in-plane and out-of-plane structural evolution and minor energetical relaxation of three locked-11.8 conformers. Therefore, a strong coupling between bonds length inversion and backbone out-of-plane deformation resulting in a very steep S1 energy profile predicted by CASSCF/CASPT2 calculations is in clear contradiction with the reference XMCQDPT2 results. Even though CC2 method predicts good quality ground-state structures, the excited-state structures display more advanced torsional deformation leading to ca. 0.2 eV exaggerated energy relaxation and significantly red shifted (0.4-0.7 eV) emission maxima. According to our findings, the initial photoisomerization process in locked-11.8, and possibly in other RPSB analogs, studied fully (both geometries and energies) by multireference perturbation theory may be somewhat slower than predicted by CASSCF/CASPT2 or CC2 methods. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Dawid Grabarek
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, Wroclaw, 50-370, Poland
| | - Tadeusz Andruniów
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, Wroclaw, 50-370, Poland
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5
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Masters TA, Robinson NA, Marsh RJ, Blacker TS, Armoogum DA, Larijani B, Bain AJ. Time-resolved stimulated emission depletion and energy transfer dynamics in two-photon excited EGFP. J Chem Phys 2018; 148:134312. [DOI: 10.1063/1.5011643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T. A. Masters
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- CoMPLEX, University College London, London WC1E 6BT, United Kingdom
| | - N. A. Robinson
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - R. J. Marsh
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - T. S. Blacker
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- CoMPLEX, University College London, London WC1E 6BT, United Kingdom
| | - D. A. Armoogum
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - B. Larijani
- Cell Biophysics Laboratory, Ikerbasque, Basque Foundation for Science and Unidad de Biofisica (CSIC-UPV/EHU), Bilbao, Spain
| | - A. J. Bain
- Department of Physics and Astronomy, University College London, London WC1E 6BT, United Kingdom
- CoMPLEX, University College London, London WC1E 6BT, United Kingdom
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Grabarek D, Walczak E, Andruniów T. Assessing the Accuracy of Various Ab Initio Methods for Geometries and Excitation Energies of Retinal Chromophore Minimal Model by Comparison with CASPT3 Results. J Chem Theory Comput 2016; 12:2346-56. [DOI: 10.1021/acs.jctc.6b00108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dawid Grabarek
- Advanced Materials Engineering
and Modelling Group, Wroclaw University of Technology, Wyb. Wyspianskiego
27, 50-370 Wroclaw, Poland
| | - Elżbieta Walczak
- Advanced Materials Engineering
and Modelling Group, Wroclaw University of Technology, Wyb. Wyspianskiego
27, 50-370 Wroclaw, Poland
| | - Tadeusz Andruniów
- Advanced Materials Engineering
and Modelling Group, Wroclaw University of Technology, Wyb. Wyspianskiego
27, 50-370 Wroclaw, Poland
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Punwong C, Owens J, Martínez TJ. Direct QM/MM Excited-State Dynamics of Retinal Protonated Schiff Base in Isolation and Methanol Solution. J Phys Chem B 2014; 119:704-14. [DOI: 10.1021/jp5038798] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chutintorn Punwong
- Department
of Physics, Faculty of Science, and Trace
Analysis and Biosensor Research Center, Prince of Songkla University, Songkhla 90112, Thailand
| | - Jane Owens
- Department
of Chemistry, University of Illinois, Urbana-Champaign, Illinois 61801, United States
| | - Todd J. Martínez
- Department
of Chemistry and The PULSE Institute, Stanford University, Stanford, California 94305, United States
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
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Shelaev IV, Mozgovaya MN, Smitienko OA, Gostev FE, Fel’dman TB, Nadtochenko VA, Sarkisov OM, Ostrovskii MA. Femtosecond dynamics of primary processes in visual pigment rhodopsin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2014. [DOI: 10.1134/s1990793114040101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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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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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. 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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11
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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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12
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Hamm P, Zewail AH, Fleming GR. A tribute to Robin Hochstrasser. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Neumann-Verhoefen MK, Neumann K, Bamann C, Radu I, Heberle J, Bamberg E, Wachtveitl J. Ultrafast Infrared Spectroscopy on Channelrhodopsin-2 Reveals Efficient Energy Transfer from the Retinal Chromophore to the Protein. J Am Chem Soc 2013; 135:6968-76. [DOI: 10.1021/ja400554y] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mirka-Kristin Neumann-Verhoefen
- Institute of Physical and Theoretical
Chemistry, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue Strasse 7, 60438 Frankfurt am Main, Germany
| | - Karsten Neumann
- Institute of Physical and Theoretical
Chemistry, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue Strasse 7, 60438 Frankfurt am Main, Germany
| | - Christian Bamann
- Max Planck Institute of Biophysics, Max-von-Laue Strasse 3, 60438 Frankfurt
am Main, Germany
| | - Ionela Radu
- Department
of Physics, Molecular
Biospectroscopy, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Joachim Heberle
- Department of Physics, Experimental
Molecular Biophysics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Ernst Bamberg
- Max Planck Institute of Biophysics, Max-von-Laue Strasse 3, 60438 Frankfurt
am Main, Germany
| | - Josef Wachtveitl
- Institute of Physical and Theoretical
Chemistry, Johann Wolfgang Goethe-University Frankfurt, Max-von-Laue Strasse 7, 60438 Frankfurt am Main, Germany
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14
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Wand A, Gdor I, Zhu J, Sheves M, Ruhman S. Shedding New Light on Retinal Protein Photochemistry. Annu Rev Phys Chem 2013; 64:437-58. [DOI: 10.1146/annurev-physchem-040412-110148] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amir Wand
- Institute of Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
| | - Itay Gdor
- Institute of Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
| | - Jingyi Zhu
- Institute of Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
| | - Mordechai Sheves
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sanford Ruhman
- Institute of Chemistry and the Farkas Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel;
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Nadtochenko VA, Smitienko OA, Feldman TB, Mozgovaya MN, Shelaev IV, Gostev FE, Sarkisov OM, Ostrovsky MA. Conical intersection participation in femtosecond dynamics of visual pigment rhodopsin chromophore cis-trans photoisomerization. DOKL BIOCHEM BIOPHYS 2012; 446:242-6. [DOI: 10.1134/s1607672912050080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Indexed: 11/22/2022]
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16
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Kim JE, Mathies RA. Anti-stokes Raman study of vibrational cooling dynamics in the primary photochemistry of rhodopsin. J Phys Chem A 2012; 106:8508-15. [PMID: 16552447 PMCID: PMC1407760 DOI: 10.1021/jp021069r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Picosecond Stokes and anti-Stokes Raman spectra are used to probe the structural dynamics and reactive energy flow in the primary cis-to-trans isomerization reaction of rhodopsin. The appearance of characteristic ethylenic, hydrogen out-of-plane (HOOP), and low-wavenumber photoproduct bands in the Raman spectra is instrument-response-limited, consistent with a subpicosecond product appearance time. Intense high and low-frequency anti-Stokes peaks demonstrate that the all-trans photoproduct is produced vibrationally hot on the ground-state surface. Specifically, the low-frequency modes at 282, 350, and 477 cm(-1) are highly vibrationally excited (T > 2000 K) immediately following isomerization, revealing that these low-frequency motions directly participate in the reactive curve-crossing process. The anti-Stokes modes are characterized by a approximately 2.5 ps temporal decay that coincides with the conversion of photorhodopsin to bathorhodopsin. This correspondence shows that the photo-to-batho transition is a ground-state cooling process and that energy storage in the primary visual photoproduct is complete on the picosecond time scale. Finally, unique Stokes vibrations at 290, 992, 1254, 1290, and 1569 cm(-1) arising from the excited state of rhodopsin are observed only at 0 ps delay.
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Affiliation(s)
- Judy E Kim
- Department of Chemistry, University of California, Berkeley, California 94720
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Zhang W, Lan Z, Sun Z, Gaffney KJ. Resolving Photo-Induced Twisted Intramolecular Charge Transfer with Vibrational Anisotropy and TDDFT. J Phys Chem B 2012; 116:11527-36. [DOI: 10.1021/jp306455m] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Wenkai Zhang
- PULSE Institute, SLAC National
Accelerator Laboratory, Stanford University, Menlo Park, California, 94025, United States
| | - Zhenggang Lan
- Qingdao Institute of Bioenergy
and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, Shandong, China
| | - Zheng Sun
- PULSE Institute, SLAC National
Accelerator Laboratory, Stanford University, Menlo Park, California, 94025, United States
| | - Kelly J. Gaffney
- PULSE Institute, SLAC National
Accelerator Laboratory, Stanford University, Menlo Park, California, 94025, United States
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Wand A, Friedman N, Sheves M, Ruhman S. Ultrafast Photochemistry of Light-Adapted and Dark-Adapted Bacteriorhodopsin: Effects of the Initial Retinal Configuration. J Phys Chem B 2012; 116:10444-52. [DOI: 10.1021/jp2125284] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amir Wand
- Institute of Chemistry and the
Farkash Center for Light-Induced Processes, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat
Ram, Jerusalem 91904, Israel
| | - Noga Friedman
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Mordechai Sheves
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sanford Ruhman
- Institute of Chemistry and the
Farkash Center for Light-Induced Processes, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Givat
Ram, Jerusalem 91904, Israel
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Wand A, Rozin R, Eliash T, Jung KH, Sheves M, Ruhman S. Asymmetric Toggling of a Natural Photoswitch: Ultrafast Spectroscopy of Anabaena Sensory Rhodopsin. J Am Chem Soc 2011; 133:20922-32. [DOI: 10.1021/ja208371g] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amir Wand
- Institute of Chemistry and Farkash Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Rinat Rozin
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Tamar Eliash
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Kwang-Hwan Jung
- Department of Life Science and Institute of Biological Interfaces, Sogang University, Shinsu-Dong 1, Mapo-Gu, Seoul 121-742, South Korea
| | - Mordechai Sheves
- Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sanford Ruhman
- Institute of Chemistry and Farkash Center for Light-Induced Processes, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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McCamant DW. Re-evaluation of rhodopsin's relaxation kinetics determined from femtosecond stimulated Raman lineshapes. J Phys Chem B 2011; 115:9299-305. [PMID: 21650454 DOI: 10.1021/jp2028164] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This work presents a theoretical treatment of the vibrational line shape generated in a femtosecond stimulated Raman spectroscopy (FSRS) experiment under conditions in which the probed vibration undergoes a significant frequency shift during its free induction decay. This theory is applied to simulate the FSRS lineshapes previously observed in rhodopsin (Kukura et al. Science 2005, 310, 1006). The previously determined relaxation times for formation of the trans-photoproduct of rhodopsin were calculated using an incorrect equation for the time dependence of the observed frequency shifts. Here the data are reanalyzed by calculation of the corrected frequency sweep occurring during the vibrational free induction decay. It is shown that the calculated frequency shifts and general conclusions of the original work are sound but that the coherent vibrational frequency shifts of the C(10), C(11), and C(12) hydrogen-out-of-plane vibrations occur with a 140 fs time constant rather than the previously reported 325 fs time constant. This time constant provides an important constraint for models of the dynamics of the cis to trans isomerization process.
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Affiliation(s)
- David W McCamant
- Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, New York 14627, USA.
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deGrip WJ, Bovee-Geurts PHM, Wang Y, Verhoeven MA, Lugtenburg J. Cyclopropyl and isopropyl derivatives of 11-cis and 9-cis retinals at C-9 and C-13: subtle steric differences with major effects on ligand efficacy in rhodopsin. JOURNAL OF NATURAL PRODUCTS 2011; 74:383-390. [PMID: 21309593 DOI: 10.1021/np100744v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Retinal is the natural ligand (chromophore) of the vertebrate rod visual pigment. It occurs in either the 11-cis (rhodopsin) or the 9-cis (isorhodopsin) configuration. In its evolution to a G protein coupled photoreceptor, rhodopsin has acquired exceptional photochemical properties. Illumination isomerizes the chromophore to the all-trans isomer, which acts as a full agonist. This process is extremely efficient, and there is abundant evidence that the C-9 and C-13 methyl groups of retinal play a pivotal role in this process. To examine the steric limits of the C-9 and C-13 methyl binding pocket of the binding site, we have prepared C-9 and C-13 cyclopropyl and isopropyl derivatives of its native ligands and of α-retinal at C-9. Most isopropyl analogues show very poor binding, except for 9-cis-13-isopropylretinal. Most cyclopropyl derivatives exhibit intermediate binding activity, except for 9-cis-13-cyclopropylretinal, which presents good binding activity. In general, the binding site shows preference for the 9-cis analogues over the 11-cis analogues. In fact, 13-isopropyl-9-cis-retinal acts as a superagonist after illumination. Another surprising finding was that 9-cyclopropylisorhodopsin is more like native rhodopsin with respect to spectral and photochemical properties, whereas 9-cyclopropylrhodopsin behaves more like native isorhodopsin in these aspects.
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Affiliation(s)
- Willem J deGrip
- Department of Biochemistry, UMCN 286, Radboud University Nijmegen Medical Centre, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands.
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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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Briand J, Bräm O, Réhault J, Léonard J, Cannizzo A, Chergui M, Zanirato V, Olivucci M, Helbing J, Haacke S. Coherent ultrafast torsional motion and isomerization of a biomimetic dipolar photoswitch. Phys Chem Chem Phys 2010; 12:3178-87. [PMID: 20237707 DOI: 10.1039/b918603d] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Femtosecond fluorescence up-conversion, UV-Vis and IR transient absorption spectroscopy are used to study the photo-isomerization dynamics of a new type of zwitterionic photoswitch based on a N-alkylated indanylidene pyrroline Schiff base framework (ZW-NAIP). The system is biomimetic, as it mimics the photophysics of retinal, in coupling excited state charge translocation and isomerization. While the fluorescence lifetime is 140 fs, excited state absorption persists over 230 fs in the form of a vibrational wavepacket according to twisting of the isomerizing double bond. After a short "dark" time window in the UV-visible spectra, which we associate with the passage through a conical intersection (CI), the wavepacket appears on the ground state potential energy surface, as evidenced by the transient mid-IR data. This allows for a precise timing of the photoreaction all the way from the initial Franck-Condon region, through the CI and into both ground state isomers, until incoherent vibrational relaxation dominates the dynamics. The photo-reaction dynamics remarkably follow those observed for retinal in rhodopsin, with the additional benefit that in ZW-NAIP the conformational change reverses the zwitterion dipole moment direction. Last, the pronounced low-frequency coherences make these molecules ideal systems for investigating wavepacket dynamics in the vicinity of a CI and for coherent control experiments.
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Affiliation(s)
- Julien Briand
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, Strasbourg University, CNRS, IPCMS-DON, 23, rue du Loess, 67034 Strasbourg, France
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Smitienko OA, Mozgovaya MN, Shelaev IV, Gostev FE, Feldman TB, Nadtochenko VA, Sarkisov OM, Ostrovsky MA. Femtosecond formation dynamics of primary photoproducts of visual pigment rhodopsin. BIOCHEMISTRY (MOSCOW) 2010; 75:25-35. [DOI: 10.1134/s0006297910010049] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Feldman TB, Kholmurodov KT, Ostrovsky MA, Khrenova MG, Nemukhin AV. Studies on the conformational state of the chromophore group (11-cis-retinal) in rhodopsin by computer molecular simulation methods. Biophysics (Nagoya-shi) 2009. [DOI: 10.1134/s0006350909040113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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26
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Mahmoodi NO, Mamaghani M, Ghanadzadeh A, Arvand M, Fesanghari M. Photochromic behavior of several new synthesized dyes via Zincke salts. J PHYS ORG CHEM 2009. [DOI: 10.1002/poc.1623] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Smitienko OA, Shelaev IV, Gostev FE, Fel'dman TB, Nadtochenko VA, Sarkisov OM, Ostrovsky MA. Coherent processes in formation of primary products of rhodopsin photolysis. DOKL BIOCHEM BIOPHYS 2008; 421:194-8. [PMID: 18853770 DOI: 10.1134/s160767290804008x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- O A Smitienko
- Emmanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 117977 Russia
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28
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Marquetand P, Nuernberger P, Brixner T, Engel V. Molecular dump processes induced by chirped laser pulses. J Chem Phys 2008; 129:074303. [DOI: 10.1063/1.2960581] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kholmurodov KT, Fel'dman TB, Ostrovskii MA. Molecular dynamics of rhodopsin and free opsin: computer simulation. ACTA ACUST UNITED AC 2007; 37:161-74. [PMID: 17187208 DOI: 10.1007/s11055-007-0164-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Revised: 07/25/2005] [Indexed: 11/27/2022]
Abstract
Computer simulation was used to perform a comparative study of the molecular dynamics of rhodopsin containing the chromophore group (11-cis-retinal) and free opsin. The molecular dynamics were followed over a time interval of 3000 psec; a total of 3 x 10(6) discrete conformational states of rhodopsin and opsin. The presence of the chromophore group in the chromophore center of opsin was shown to have significant effects on the immediate protein environment of the chromophore and the conformational state of the cytoplasmic domain, but to have virtually no effect on the conformational state of the intradisk domain. The simulation results are used to discuss the possible intramolecular mechanism by which rhodopsin is maintained as a G-protein-coupled receptor in the inactive state, i.e., the function of the chromophore as an effective antagonist ligand.
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Affiliation(s)
- Kh T Kholmurodov
- Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygin Street, 119991, Moscow, Russia
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30
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About the intrinsic photochemical properties of the 11-cis retinal chromophore: computational clues for a trap state and a lever effect in Rhodopsin catalysis. Theor Chem Acc 2007. [DOI: 10.1007/s00214-007-0259-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Spezia R, Burghardt I, Hynes JT. Conical intersections in solution: non-equilibrium versus equilibrium solvation. Mol Phys 2007. [DOI: 10.1080/00268970500417895] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Riccardo Spezia
- a Département de Chimie , Ecole Normale Supérieure , 24 rue Lhomond, F-75231 Paris cedex 05, France
| | - Irene Burghardt
- a Département de Chimie , Ecole Normale Supérieure , 24 rue Lhomond, F-75231 Paris cedex 05, France
| | - James T. Hynes
- a Département de Chimie , Ecole Normale Supérieure , 24 rue Lhomond, F-75231 Paris cedex 05, France
- b Department of Chemistry and Biochemistry , University of Colorado , Boulder, CO 80309-0215, USA
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32
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Complex excited dynamics around a plateau on a retinal-like potential surface: chaos, multi-exponential decays and quantum/classical differences. Theor Chem Acc 2007. [DOI: 10.1007/s00214-006-0220-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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33
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Altoè P, Bernardi F, Conti I, Garavelli M, Negri F, Orlandi G. Light driven molecular switches: exploring and tuning their photophysical and photochemical properties. Theor Chem Acc 2006. [DOI: 10.1007/s00214-006-0219-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Renth F, Foca M, Petter A, Temps F. Ultrafast transient absorption spectroscopy of the photo-induced Z–E isomerization of a photochromic furylfulgide. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.07.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Nuernberger P, Vogt G, Gerber G, Improta R, Santoro F. Femtosecond study on the isomerization dynamics of NK88. I. Ground-state dynamics after photoexcitation. J Chem Phys 2006; 125:44512. [PMID: 16942161 DOI: 10.1063/1.2210482] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Recently, optimal control of a photoisomerization reaction in the liquid phase was demonstrated for the first time on the system 3,3(')-diethyl-2,2(')-thiacyanine (NK88). Additionally, the class of cyanines to which the molecule NK88 belongs draws a lot of attention in different recent theoretical publications. Therefore, a better understanding of the molecular dynamics of this molecular system is of special interest. Experiments using the femtosecond pump-supercontinuum probe technique with an excitation wavelength of 400 nm and a spectral range from 370 to 620 nm for the probe beam have been performed. In order to analyze the dynamics properly the time window has been chosen to comprise the characteristic times of the contributing processes, additionally we have employed two solvents, methanol and ethylene glycol, and have conducted anisotropy measurements. The spectroscopic data have been assigned to different molecular states with the help of density functional theory and second-order Moller-Plesset perturbation theory calculations. The analysis of the data has revealed in the most likely model that three different isomers exist with different lifetimes. On the basis of experimental and theoretical data, a conclusive scheme of the isomerization reaction is presented.
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Affiliation(s)
- Patrick Nuernberger
- Physikalisches Institut, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
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36
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Vogt G, Nuernberger P, Gerber G, Improta R, Santoro F. Femtosecond study on the isomerization dynamics of NK88. II. Excited-state dynamics. J Chem Phys 2006; 125:44513. [PMID: 16942162 DOI: 10.1063/1.2210939] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The molecule 3,3(')-diethyl-2,2(')-thiacyanine isomerizes after irradiation with light of the proper wavelength. After excitation, it undergoes a transition, in which one or more conical intersections are involved, back to the ground state to form different product photoisomers. The dynamics before and directly after the transition back to the ground state is investigated by transient absorption spectroscopy in a wavelength region of 360-950 nm, as well as by fluorescence upconversion. It is shown that the excited-state dynamics are governed by two time scales: a short one with a decay time of less than 2 ps and a long one with about 9 ps. A thorough comparison of the experimental results with those of configuration interaction singles and time-dependent density functional theory calculations suggests that these dynamics are related to two competing pathways differing in the molecular twisting on the excited surface after photoexcitation. From the experimental point of view this picture arises taking into account the time scales for ground-state bleach, excited-state absorption, stimulated emission, fluorescence, and assumed hot ground-state absorption both in the solvent methanol and ethylene glycol.
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Affiliation(s)
- Gerhard Vogt
- Physikalisches Institut, Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
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37
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Schenkl S, van Mourik F, Friedman N, Sheves M, Schlesinger R, Haacke S, Chergui M. Insights into excited-state and isomerization dynamics of bacteriorhodopsin from ultrafast transient UV absorption. Proc Natl Acad Sci U S A 2006; 103:4101-6. [PMID: 16537491 PMCID: PMC1449653 DOI: 10.1073/pnas.0506303103] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A visible-pump/UV-probe transient absorption is used to characterize the ultrafast dynamics of bacteriorhodopsin with 80-fs time resolution. We identify three spectral components in the 265- to 310-nm region, related to the all-trans retinal, tryptophan (Trp)-86 and the isomerized photoproduct, allowing us to map the dynamics from reactants to products, along with the response of Trp amino acids. The signal of the photoproduct appears with a time delay of approximately 250 fs and is characterized by a steep rise ( approximately 150 fs), followed by additional rise and decay components, with time scales characteristic of the J intermediate. The delayed onset and the steep rise point to an impulsive formation of a transition state on the way to isomerization. We argue that this impulsive formation results from a splitting of a wave packet of torsional modes on the potential surface at the branching between the all-trans and the cis forms. Parallel to these dynamics, the signal caused by Trp response rises in approximately 200 fs, because of the translocation of charge along the conjugate chain, and possible mechanisms are presented, which trigger isomerization.
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Affiliation(s)
- S. Schenkl
- *Laboratoire de Spectroscopie Ultrarapide, Institut des Sciences et Ingeniérie Chimiques, Faculté des Sciences de Base, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne-Dorigny, Switzerland
| | - F. van Mourik
- *Laboratoire de Spectroscopie Ultrarapide, Institut des Sciences et Ingeniérie Chimiques, Faculté des Sciences de Base, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne-Dorigny, Switzerland
| | - N. Friedman
- Departments of Organic Chemistry and Chemical Services, The Weizmann Institute of Sciences, Rehovot 76100, Israel; and
| | - M. Sheves
- Departments of Organic Chemistry and Chemical Services, The Weizmann Institute of Sciences, Rehovot 76100, Israel; and
| | - R. Schlesinger
- Institute for Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - S. Haacke
- *Laboratoire de Spectroscopie Ultrarapide, Institut des Sciences et Ingeniérie Chimiques, Faculté des Sciences de Base, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne-Dorigny, Switzerland
| | - M. Chergui
- *Laboratoire de Spectroscopie Ultrarapide, Institut des Sciences et Ingeniérie Chimiques, Faculté des Sciences de Base, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne-Dorigny, Switzerland
- To whom correspondence should be addressed. E-mail:
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39
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Kholmurodov KT, Feldman TB, Ostrovsky MA. Visual pigment rhodopsin : a computer simulation of the molecular dynamics of 11-cis-retinal chromophore and amino-acid residues in the chromophore centre. MENDELEEV COMMUNICATIONS 2006. [DOI: 10.1070/mc2006v016n01abeh002255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Olivucci M, Lami A, Santoro F. A Tiny Excited-State Barrier Can Induce a Multiexponential Decay of the Retinal Chromophore: A Quantum Dynamics Investigation. Angew Chem Int Ed Engl 2005; 44:5118-21. [PMID: 16035016 DOI: 10.1002/anie.200501236] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Massimo Olivucci
- Dipartimento di Chimica, Università degli Studi di Siena, via Aldo Moro, 53100 Siena, Italy.
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41
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Olivucci M, Lami A, Santoro F. A Tiny Excited-State Barrier Can Induce a Multiexponential Decay of the Retinal Chromophore: A Quantum Dynamics Investigation. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200501236] [Citation(s) in RCA: 10] [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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42
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Cembran A, Bernardi F, Olivucci M, Garavelli M. Counterion Controlled Photoisomerization of Retinal Chromophore Models: a Computational Investigation. J Am Chem Soc 2004; 126:16018-37. [PMID: 15584736 DOI: 10.1021/ja048782+] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CASPT2//CASSCF photoisomerization path computations have been used to unveil the effects of an acetate counterion on the photochemistry of two retinal protonated Schiff base (PSB) models: the 2-cis-penta-2,4-dieniminium and the all-trans-epta-2,4,6-trieniminium cations. Different positions/orientations of the counterion have been investigated and related to (i) the spectral tuning and relative stability of the S0, S1, and S2 singlet states; (ii) the selection of the photochemically relevant excited state; (iii) the control of the radiationless decay and photoisomerization rates; and, finally, (iv) the control of the photoisomerization stereospecificity. A rationale for the results is given on the basis of a simple (electrostatic) qualitative model. We show that the model readily explains the computational results providing a qualitative explanation for different aspects of the experimentally observed "environment" dependent PSB photochemistry. Electrostatic effects likely involved in controlling retinal photoisomerization stereoselectivity in the protein are also discussed under the light of these results, and clues for a stereocontrolled electrostatically driven photochemical process are presented. These computations provide a rational basis for the formulation of a mechanistic model for photoisomerization electrostatic catalysis.
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Affiliation(s)
- Alessandro Cembran
- Dipartimento di Chimica G. Ciamician, Università di Bologna, via Selmi 2, Bologna, I-40126 Italy
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Glasbeek M, Zhang H. Femtosecond Studies of Solvation and Intramolecular Configurational Dynamics of Fluorophores in Liquid Solution. Chem Rev 2004; 104:1929-54. [PMID: 15080717 DOI: 10.1021/cr0206723] [Citation(s) in RCA: 214] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Max Glasbeek
- Laboratory for Physical Chemistry, University of Amsterdam, Nieuwe Achtergracht 129, 1018 WS Amsterdam, The Netherlands.
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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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46
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Son DH, Kambhampati P, Kee TW, Barbara PF. Femtosecond Multicolor Pump−Probe Study of Ultrafast Electron Transfer of [(NH3)5RuIIINCRuII(CN)5]- in Aqueous Solution. J Phys Chem A 2002. [DOI: 10.1021/jp014151f] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Hee Son
- Department of Chemistry and Biochemistry, University of Texas, Austin, Texas 78712
| | | | - Tak W. Kee
- Department of Chemistry and Biochemistry, University of Texas, Austin, Texas 78712
| | - Paul F. Barbara
- Department of Chemistry and Biochemistry, University of Texas, Austin, Texas 78712
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Gensch T, Gradinaru C, van Stokkum I, Hendriks J, Hellingwerf K, van Grondelle R. The primary photoreaction of photoactive yellow protein (PYP): anisotropy changes and excitation wavelength dependence. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00344-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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48
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Schenkl S, Portuondo E, Zgrablić G, Chergui M, Haacke S, Friedman N, Sheves M. Ultrafast energy relaxation in bacteriorhodopsin studied by time-integrated fluorescence. Phys Chem Chem Phys 2002. [DOI: 10.1039/b205453a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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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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50
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Xu QH, Fleming GR. Isomerization Dynamics of 1,1’-Diethyl-4,4’-Cyanine (1144C) Studied by Different Third-Order Nonlinear Spectroscopic Measurements. J Phys Chem A 2001. [DOI: 10.1021/jp011924r] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qing-Hua Xu
- Department of Chemistry, University of California, Berkeley and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Graham R. Fleming
- Department of Chemistry, University of California, Berkeley and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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