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Wang Y, Cacchillo EM, Niedzwiedzki DM, Taylor JS. Ability of the Putative Decomposition Products of 2,3-dioxetanes of Indoles to Photosensitize Cyclobutane Pyrimidine Dimer (CPD) Formation and its Implications for the "Dark" (Chemisensitized) Pathway to CPDs in Melanocytes †. Photochem Photobiol 2021; 98:442-454. [PMID: 34558720 DOI: 10.1111/php.13529] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 09/20/2021] [Indexed: 11/28/2022]
Abstract
The formation of cyclobutane pyrimidine dimers (CPDs) by a "dark" pathway in melanocytes has been attributed to chemisensitization by dioxetanes produced from peroxynitrite oxidation of melanin or melanin precursors. These dioxetanes are proposed to decompose to triplet state compounds which sensitize CPD formation by triplet-triplet energy transfer. To determine whether such compounds are capable of sensitizing CPD formation, the putative decomposition products of 2,3-dioxetanes of variously substituted indoles were synthesized and their triplet state energies determined at 77 K. Their ability to photosensitize CPD formation was determined by an enzyme-coupled gel electrophoresis assay in comparison with norfloxacin (NFX) which has the lowest triplet energy known to sensitize CPD formation. The decomposition products of 2,3-dioxetanes of 5-hydroxy and 5,6-dimethoxy indoles used as models for melanin precursors had lower triplet energies and were incapable of photosensitizing CPD formation. Theoretical calculations suggest that the decomposition products of the 2,3-dioxetanes of melanin precursors DHI and DHICA will have similarly low triplet energies. Decomposition products of the 2,3-dioxetanes of indoles lacking oxygen substituents had higher triplet energies than NFX and were capable of photosensitizing CPD formation, suggesting that peroxynitrite oxidation of tryptophan could play a hitherto unrecognized role in the dark pathway to CPDs.
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Affiliation(s)
- Yanjing Wang
- Department of Chemistry, Washington University, St. Louis, MO
| | | | - Dariusz M Niedzwiedzki
- Center for Solar Energy and Energy Storage, Washington University, St. Louis, MO.,Department of Energy, Environmental & Chemical Engineering, Washington University, St. Louis, MO
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Pishchalnikov RY, Yaroshevich IA, Slastnikova TA, Ashikhmin AA, Stepanov AV, Slutskaya EA, Friedrich T, Sluchanko NN, Maksimov EG. Structural peculiarities of keto-carotenoids in water-soluble proteins revealed by simulation of linear absorption. Phys Chem Chem Phys 2019; 21:25707-25719. [PMID: 31720635 DOI: 10.1039/c9cp04508b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
To prevent irreversible damage caused by an excess of incident light, the photosynthetic machinery of many cyanobacteria uniquely utilizes the water-soluble orange carotenoid protein (OCP) containing a single keto-carotenoid molecule. This molecule is non-covalently embedded into the two OCP domains which are interconnected by a flexible linker. The phenomenon of OCP photoactivation, causing significant changes in carotenoid absorption in the orange and red form of OCP, is currently being thoroughly studied. Numerous additional spectral forms of natural and synthetic OCP-like proteins have been unearthed. The optical properties of carotenoids are strongly determined by the interaction of their electronic states with vibrational modes, the surrounding protein matrix, and the solvent. In this work, the effects of the pigment-protein interaction and vibrational relaxation in OCP were studied by computational simulation of linear absorption. Taking into account Raman spectroscopy data and applying the multimode Brownian oscillator model as well as the cumulant expansion technique, we have calculated a set of characteristic microparameters sufficient to demarcate different carotenoid states in OCP forms, using the model carotenoids spheroidene and spheroidenone in methanol/acetone solution as benchmarks. The most crucial microparameters, which determine the effect of solvent and protein environment, are the Huang-Rhys factors and the frequencies of C[double bond, length as m-dash]C and C-C stretching modes, the low-frequency mode and the FWHM due to inhomogeneous line broadening. Considering the difference of linear absorption between spheroidene and spheroidenone, which remarkably resembles the photoinduced changes of OCP absorption, and applying quantum chemical calculations, we discuss structural and functional determinants of carotenoid binding proteins.
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Affiliation(s)
- Roman Y Pishchalnikov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov Str., 38, 119991, Moscow, Russia.
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Niedzwiedzki DM, Blankenship RE. Excited-state properties of the central-cis isomer of the carotenoid peridinin. Arch Biochem Biophys 2018; 649:29-36. [DOI: 10.1016/j.abb.2018.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 04/10/2018] [Accepted: 05/04/2018] [Indexed: 01/09/2023]
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Uragami C, Saito K, Yoshizawa M, Molnár P, Hashimoto H. Unified analysis of optical absorption spectra of carotenoids based on a stochastic model. Arch Biochem Biophys 2018; 650:49-58. [DOI: 10.1016/j.abb.2018.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/06/2018] [Accepted: 04/30/2018] [Indexed: 11/26/2022]
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Kukura P, McCamant DW, Mathies RA. Femtosecond Time-Resolved Stimulated Raman Spectroscopy of the S(2) (1B(u)) Excited State of beta-Carotene. J Phys Chem A 2012; 108:5921-5. [PMID: 16633549 PMCID: PMC1444889 DOI: 10.1021/jp0482971] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The electronic and vibrational structure of beta-carotene's early excited states are examined using femtosecond time-resolved stimulated Raman spectroscopy. The vibrational spectrum of the short-lived ( approximately 160 fs) second excited singlet state (S(2),1B(u) (+))of beta-carotene is obtained. Broad, resonantly enhanced vibrational features are observed at approximately 1100, 1300, and 1650 cm(-1) that decay with a time constant corresponding to the electronic lifetime of S(2). The temporal evolution of the vibrational spectra are consistent with significant population of only two low-lying excited electronic states (1B(u) (+) and 2A(g) (-)) in the ultrafast relaxation pathway of beta-carotene.
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Affiliation(s)
- Philipp Kukura
- Department of Chemistry University of California, Berkeley, California 94720
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Shimada R, Hamaguchi HO. Solute–solvent intermolecular vibronic coupling as manifested by the molecular near-field effect in resonance hyper-Raman scattering. J Chem Phys 2011; 134:034516. [DOI: 10.1063/1.3512923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kosumi D, Kusumoto T, Fujii R, Sugisaki M, Iinuma Y, Oka N, Takaesu Y, Taira T, Iha M, Frank HA, Hashimoto H. Ultrafast excited state dynamics of fucoxanthin: excitation energy dependent intramolecular charge transfer dynamics. Phys Chem Chem Phys 2011; 13:10762-70. [DOI: 10.1039/c0cp02568b] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Karabunarliev S, Baumgarten M, Bittner ER, Müllen K. Rigorous Franck–Condon absorption and emission spectra of conjugated oligomers from quantum chemistry. J Chem Phys 2000. [DOI: 10.1063/1.1328067] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Onaka K, Fujii R, Nagae H, Kuki M, Koyama Y, Watanabe Y. The state energy and the displacements of the potential minima of the 2Ag− state in all-trans-β-carotene as determined by fluorescence spectroscopy. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)01212-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Macpherson AN, Gillbro T. Solvent Dependence of the Ultrafast S2−S1Internal Conversion Rate of β-Carotene. J Phys Chem A 1998. [DOI: 10.1021/jp980979z] [Citation(s) in RCA: 170] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Marzocchi MP, Mantini AR, Casu M, Smulevich G. Intramolecular hydrogen bonding and excited state proton transfer in hydroxyanthraquinones as studied by electronic spectra, resonance Raman scattering, and transform analysis. J Chem Phys 1998. [DOI: 10.1063/1.475417] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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de Oliveira LF, Dantas SO, Velozo ES, Santos PS, Ribeiro MC. Resonance Raman investigation and semi-empirical calculation of the natural carotenoid bixin. J Mol Struct 1997. [DOI: 10.1016/s0022-2860(97)00173-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Matrix and temperature effects on absorption spectra of β-carotene and pheophytin a in solution and in green plant photosystem II. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/1010-6030(96)04302-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mukhopadhyay D, Soos ZG. Nonlinear optical and electroabsorption spectra of polydiacetylene crystals and films. J Chem Phys 1996. [DOI: 10.1063/1.470748] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Soos ZG, Mukhopadhyay D. Vibronic analysis of overlapping resonances and the third‐harmonic‐generation spectrum of β‐carotene. J Chem Phys 1994. [DOI: 10.1063/1.467340] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shuai Z, Brédas JL. Relaxation of the first Bu excited state in linear polyenes: From trans‐butadiene to polyacetylene. J Chem Phys 1992. [DOI: 10.1063/1.463734] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Foggi P, Kamalov VF, Righini R, Torre R. Resonance-enhanced time-resolved optical Kerr effect of beta-carotene in solution. OPTICS LETTERS 1992; 17:775-777. [PMID: 19794627 DOI: 10.1364/ol.17.000775] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A sharp resonant amplification of the third-order susceptibility of a diluted beta-carotene solution in dodecane is observed by means of the time-resolved optical Kerr effect when the wavelength of the probe is tuned in the range of 490-570 nm. The resonance is well in the red with respect to the 0-0 first electronic transition; some evidence is given of the possible role of higher excited states and of two-photon resonance.
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Abstract
We report the near infrared absorption spectra of cyanomethemoglobin and cyanometmyoglobin in two different solvents (deuterated solutions containing 65% v/v glycerol(OD)3 or 65% v/v ethylene glycol(OD)2). At 25 K the spectra show a clearly resolved fine structure that can be accounted for by considering a strong coupling of the porphyrin-to-iron charge transfer transitions with a single vibrational mode at 365 cm-1. The coupling constants depend on both the specific electronic transition and the protein surrounding the chromophore, indicating once more the specificity of heme globin interactions.
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Affiliation(s)
- M Leone
- Istituto di Fisica dell'Università, Palermo, Italy
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van Beek JB, Kajzar F, Albrecht AC. Resonant third‐harmonic generation in all‐trans β‐carotene: The vibronic origins of the third‐order nonlinear susceptibility in the visible region. J Chem Phys 1991. [DOI: 10.1063/1.461560] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hagler TW, Pakbaz K, Voss KF, Heeger AJ. Enhanced order and electronic delocalization in conjugated polymers oriented by gel processing in polyethylene. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:8652-8666. [PMID: 9998821 DOI: 10.1103/physrevb.44.8652] [Citation(s) in RCA: 198] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sztainbuch IW, Leroi GE. Detection of parity‐forbidden excited states by preresonance Raman excitation: Diphenyldecapentaene. J Chem Phys 1990. [DOI: 10.1063/1.458704] [Citation(s) in RCA: 19] [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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