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Yamabe S, Zeng G, Guan W, Sakaki S. Substrate dependent reaction channels of the Wolff-Kishner reduction reaction: A theoretical study. Beilstein J Org Chem 2014; 10:259-70. [PMID: 24605145 PMCID: PMC3943666 DOI: 10.3762/bjoc.10.21] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 12/18/2013] [Indexed: 11/23/2022] Open
Abstract
Wolff–Kishner reduction reactions were investigated by DFT calculations for the first time. B3LYP/6-311+G(d,p) SCRF=(PCM, solvent = 1,2-ethanediol) optimizations were carried out. To investigate the role of the base catalyst, the base-free reaction was examined by the use of acetone, hydrazine (H2N–NH2) and (H2O)8. A ready reaction channel of acetone → acetone hydrazine (Me2C=N–NH2) was obtained. The channel involves two likely proton-transfer routes. However, it was found that the base-free reaction was unlikely at the N2 extrusion step from the isopropyl diimine intermediate (Me2C(H)–N=N–H). Two base-catalyzed reactions were investigated by models of the ketone, H2N–NH2 and OH−(H2O)7. Here, ketones are acetone and acetophenone. While routes of the ketone → hydrazone → diimine are similar, those from the diimines are different. From the isopropyl diimine, the N2 extrusion and the C–H bond formation takes place concomitantly. The concomitance leads to the propane product concertedly. From the (1-phenyl)ethyl substituted diimine, a carbanion intermediate is formed. The para carbon of the phenyl ring of the anion is subject to the protonation, which leads to a 3-ethylidene-1,4-cyclohexadiene intermediate. Its [1,5]-hydrogen migration gives the ethylbenzene product. For both ketone substrates, the diimines undergoing E2 reactions were found to be key intermediates.
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Affiliation(s)
- Shinichi Yamabe
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, JAPAN
| | - Guixiang Zeng
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, JAPAN
| | - Wei Guan
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, JAPAN
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103, JAPAN
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Lee W, Engels B. The Protonation State of Catalytic Residues in the Resting State of KasA Revisited: Detailed Mechanism for the Activation of KasA by Its Own Substrate. Biochemistry 2014; 53:919-31. [DOI: 10.1021/bi401308j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wook Lee
- Institut für Physikalische
und Theoretische Chemie, Universität Würzburg, Emil-Fischer
Strasse 42, 97074 Würzburg, Germany
| | - Bernd Engels
- Institut für Physikalische
und Theoretische Chemie, Universität Würzburg, Emil-Fischer
Strasse 42, 97074 Würzburg, Germany
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3
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Lee W, Engels B. Clarification on the Decarboxylation Mechanism in KasA Based on the Protonation State of Key Residues in the Acyl-Enzyme State. J Phys Chem B 2013; 117:8095-104. [DOI: 10.1021/jp403067m] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wook Lee
- Institut
für Physikalische und Theoretische
Chemie, Universität Würzburg, Emil-Fischer Strasse 42, 97074, Würzburg, Germany
| | - Bernd Engels
- Institut
für Physikalische und Theoretische
Chemie, Universität Würzburg, Emil-Fischer Strasse 42, 97074, Würzburg, Germany
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4
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Paasche A, Schirmeister T, Engels B. Benchmark Study for the Cysteine-Histidine Proton Transfer Reaction in a Protein Environment: Gas Phase, COSMO, QM/MM Approaches. J Chem Theory Comput 2013; 9:1765-77. [PMID: 26587634 DOI: 10.1021/ct301082y] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Proton transfer reactions are of crucial interest for the investigation of proteins. We have investigated the accuracy of commonly used quantum chemical methods for the description of proton transfer reactions in different environments (gas phase, COSMO, QM/MM) using the proton transfer between the catalytic dyad residues cysteine 145 and histidine 41 of SARS coronavirus main protease as a case study. The test includes thermodynamic, kinetic, and structural properties. The study comprises computationally demanding ab initio approaches (HF, CC2, MP2, SCS-CC2, SCS-MP2, CCSD(T)), popular density functional theories (BLYP, B3LYP, M06-2X), and semiempirical methods (MNDO/d, AM1, RM1, PM3, PM6). The approximated coupled cluster approach LCCSD(T) is taken as a reference method. We find that the robustness of the tested methods with respect to the environment correlates well with the level of theory. As an example HF, CC2, MP2, and their SCS variants show similar errors for gas phase, COSMO, or QM/MM computations. In contrast for semiempirical methods, the errors strongly diversify if one goes from gas phase to COSMO or QM/MM. Particular problems are observed for the recent semiempirical methods PM6 and RM1, which show the best performance for gas phase calculations but possess larger errors in conjunction with COSMO. Finally, a combination of SCS-MP2 and B3LYP or M06-2X allows reliable estimates about remaining errors.
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Affiliation(s)
- Alexander Paasche
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Emil-Fischer-Str. 42, 97074 Würzburg, Germany
| | - Tanja Schirmeister
- Institut für Pharmazie und Biochemie, Johannes Gutenberg-Universität Mainz, Staudinger Weg 5, 55128 Mainz, Germany
| | - Bernd Engels
- Institut für Physikalische und Theoretische Chemie, Universität Würzburg, Emil-Fischer-Str. 42, 97074 Würzburg, Germany
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Marazzi M, Sancho U, Castaño O, Frutos LM. First principles study of photostability within hydrogen-bonded amino acids. Phys Chem Chem Phys 2011; 13:7805-11. [PMID: 21403960 DOI: 10.1039/c0cp02554b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The photochemistry and photophysics of a two-glycine minimal model is studied at the CASPT2//CASSCF level of theory. Different photoinduced processes are discussed, on the basis of the calculated minimum energy paths and the characterization of the electronic state crossings. Two main processes could provide UV-photostability to the hydrogen-bonded peptide system: (i) forward-backward photoinduced electron/proton transfer involving the H in the hydrogen bond, (ii) singlet-singlet energy transfer between two amino acids, providing ultrafast population of the low-energy n,π* state.
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Affiliation(s)
- Marco Marazzi
- Departamento de Química Física, Universidad de Alcalá, 28871 Alcalá de Henares (Madrid), Spain.
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7
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Yan S, Kang S, Hayashi T, Mukamel S, Lee JY. Computational studies on electron and proton transfer in phenol-imidazole-base triads. J Comput Chem 2010; 31:393-402. [PMID: 19479733 DOI: 10.1002/jcc.21339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The electron and proton transfer in phenol-imidazole-base systems (base = NH(2)(-) or OH(-)) were investigated by density-functional theory calculations. In particular, the role of bridge imidazole on the electron and proton transfer was discussed in comparison with the phenol-base systems (base = imidazole, H(2)O, NH(3), OH(-), and NH(2)(-)). In the gas phase phenol-imidazole-base system, the hydrogen bonding between the phenol and the imidazole is classified as short strong hydrogen bonding, whereas that between the imidazole and the base is a conventional hydrogen bonding. The n value in sp(n) hybridization of the oxygen and carbon atoms of the phenolic CO sigma bond was found to be closely related to the CO bond length. From the potential energy surfaces without and with zero point energy correction, it can be concluded that the separated electron and proton transfer mechanism is suitable for the gas-phase phenol-imidazole-base triads, in which the low-barrier hydrogen bond is found and the delocalized phenolic proton can move freely in the single-well potential. For the gas-phase oxidized systems and all of the triads in water solvent, the homogeneous proton-coupled electron transfer mechanism prevails.
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Affiliation(s)
- Shihai Yan
- Department of Chemistry, SungKyunKwan University, Suwon 440-746, Korea
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8
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Lankau T, Yu CH. A model study of the efficiency of the Asp-His-Ser triad. J Comput Chem 2010; 31:1853-9. [DOI: 10.1002/jcc.21470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Sakae Y, Matsubara T, Aida M, Kondo H, Masaki K, Iefuji H. ONIOM Study of the Mechanism of the Enzymatic Hydrolysis of Biodegradable Plastics. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2009. [DOI: 10.1246/bcsj.82.338] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Thomas V, Iftimie R. Toward Understanding the Dissociation of Weak Acids in Water: 1. Using IR Spectroscopy to Identify Proton-Shared Hydrogen-Bonded Ion-Pair Intermediates. J Phys Chem B 2008; 113:4152-60. [DOI: 10.1021/jp807378x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Vibin Thomas
- Département de Chimie, Université de Montréal, CP 6128, succursale Centre-Ville, Montréal, H3C3J7, Canada
| | - Radu Iftimie
- Département de Chimie, Université de Montréal, CP 6128, succursale Centre-Ville, Montréal, H3C3J7, Canada
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11
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Filarowski A, Koll A, Hansen PE, Kluba M. Density Functional Theory Study of Intramolecular Hydrogen Bonding and Proton Transfer in o-Hydroxyaryl Ketimines. J Phys Chem A 2008; 112:3478-85. [DOI: 10.1021/jp076991l] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Aleksander Filarowski
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland, and Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Aleksander Koll
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland, and Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Poul Erik Hansen
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland, and Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Malgorzata Kluba
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland, and Department of Life Sciences and Chemistry, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
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12
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Majerz I, Olovsson I. The shape of the potential energy curves for NHN+ hydrogen bonds and the influence of non-linearity. Phys Chem Chem Phys 2008; 10:3043-51. [DOI: 10.1039/b717815h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Gu W, Frigato T, Straatsma T, Helms V. Dynamisches Protonierungsgleichgewicht der in Wasser gelösten Essigsäure. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Gu W, Frigato T, Straatsma TP, Helms V. Dynamic Protonation Equilibrium of Solvated Acetic Acid. Angew Chem Int Ed Engl 2007; 46:2939-43. [PMID: 17366497 DOI: 10.1002/anie.200603583] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wei Gu
- Zentrum für Bioinformatik, Universität des Saarlandes, 66041 Saarbrücken, Germany
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15
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Tachikawa H, Igarashi M, Nishihira J, Ishibashi T. Ab initio model study on acetylcholinesterase catalysis: potential energy surfaces of the proton transfer reactions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2005; 79:11-23. [PMID: 15792875 DOI: 10.1016/j.jphotobiol.2004.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2004] [Revised: 11/11/2004] [Accepted: 11/20/2004] [Indexed: 11/18/2022]
Abstract
Ab initio molecular orbital (MO) and hybrid density functional theory (DFT) calculations have been applied to the initial step of the acylation reaction catalyzed by acetylcholinesterase (AChE), which is the nucleophiric addition of Ser200 in catalytic triads to a neurotransmitter acetylcholine (ACh). We focus our attention mainly on the effects of oxyanion hole and Glu327 on the potential energy surfaces (PESs) for the proton transfer reactions in the catalytic triad Ser200-His440-Glu327. The activation barrier for the addition reaction of Ser200 to ACh was calculated to be 23.4 kcal/mol at the B3LYP/6-31G(d)//HF/3-21G(d) level of theory. The barrier height under the existence of oxyanion hole, namely, Ser200-His440-Glu327-ACh-(oxyanion hole) system, decreased significantly to 14.2 kcal/mol, which is in reasonable agreement with recent experimental value (12.0 kcal/mol). Removal of Glu327 from the catalytic triad caused destabilization of both energy of transition state for the reaction and tetrahedral intermediate (product). PESs calculated for the proton transfer reactions showed that the first proton transfer process is the most important in the stabilization of tetrahedral intermediate complex. The mechanism of addition reaction of ACh was discussed on the basis of theoretical results.
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Affiliation(s)
- Hiroto Tachikawa
- Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan.
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16
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Rozenfeld R, Iturrioz X, Maigret B, Llorens-Cortes C. Contribution of molecular modeling and site-directed mutagenesis to the identification of two structural residues, Arg-220 and Asp-227, in aminopeptidase A. J Biol Chem 2002; 277:29242-52. [PMID: 12042323 DOI: 10.1074/jbc.m204406200] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Aminopeptidase A is a zinc metalloenzyme involved in the formation of brain angiotensin III, which exerts a tonic stimulatory action on the central control of blood pressure. Thus, central inhibitors of aminopeptidase A constitute putative central antihypertensive agents. Mutagenic studies have been performed to investigate organization of the aminopeptidase A active site, with a view to designing such inhibitors. The structure of one monozinc aminopeptidase (leukotriene A(4) hydrolase) was recently resolved and used to construct a three-dimensional model of the aminopeptidase A ectodomain. This new model, highly consistent with the results of mutagenic studies, showed a critical structural interaction between two conserved residues, Arg-220 and Asp-227. Mutagenic replacement of either of these two residues disrupted maturation and subcellular localization and abolished the enzymatic activity of aminopeptidase A, confirming the critical structural role of these residues. In this study, we generated the first three-dimensional model of a strict aminopeptidase, aminopeptidase A. This model constitutes a new tool to probe further the active site of aminopeptidase A and to design new inhibitors of this enzyme.
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Affiliation(s)
- Raphael Rozenfeld
- INSERM, Unité 36, Collège de France, 11, place Marcelin Berthelot, 75005 Paris, France
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Desfrançois C, Carles S, Schermann JP. Weakly bound clusters of biological interest. Chem Rev 2000; 100:3943-62. [PMID: 11749335 DOI: 10.1021/cr990061j] [Citation(s) in RCA: 202] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- C Desfrançois
- Laboratoire de Physique des Lasers, Université Paris Nord, Villetaneuse, 93430, France
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18
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Lill MA, Hutter MC, Helms V. Accounting for Environmental Effects in ab Initio Calculations of Proton Transfer Barriers. J Phys Chem A 2000. [DOI: 10.1021/jp001550m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Markus A. Lill
- Max-Planck Institute of Biophysics, Kennedyallee 70, 60596 Frankfurt/Main, Germany
| | - Michael C. Hutter
- Max-Planck Institute of Biophysics, Kennedyallee 70, 60596 Frankfurt/Main, Germany
| | - Volkhard Helms
- Max-Planck Institute of Biophysics, Kennedyallee 70, 60596 Frankfurt/Main, Germany
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Schweighofer KJ, Pohorille A. Computer simulation of ion channel gating: the M(2) channel of influenza A virus in a lipid bilayer. Biophys J 2000; 78:150-63. [PMID: 10620282 PMCID: PMC1300626 DOI: 10.1016/s0006-3495(00)76581-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The transmembrane fragment of the influenza virus M(2) protein forms a homotetrameric channel that transports protons. In this paper, we use molecular dynamics simulations to help elucidate the mechanism of channel gating by four histidines that occlude the channel lumen in the closed state. We test two competing hypotheses. In the "shuttle" mechanism, the delta nitrogen atom on the extracellular side of one histidine is protonated by the incoming proton, and, subsequently, the proton on the epsilon nitrogen atom is released on the opposite side. In the "water-wire" mechanism, the gate opens because of electrostatic repulsion between four simultaneously biprotonated histidines. This allows for proton transport along the water wire that penetrates the gate. For each system, composed of the channel embedded in a hydrated phospholipid bilayer, a 1.3-ns trajectory was obtained. It is found that the states involved in the shuttle mechanism, which contain either single-protonated histidines or a mixture of single-protonated histidines plus one biprotonated residue, are stable during the simulations. Furthermore, the orientations and dynamics of water molecules near the gate are conducive to proton transfer. In contrast, the fully biprotonated state is not stable. Additional simulations show that if only two histidines are biprotonated, the channel deforms but the gate remains closed. These results support the shuttle mechanism but not the gate-opening mechanism of proton gating in M(2).
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Affiliation(s)
- K J Schweighofer
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, California 94143, USA
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Cramer CJ, Truhlar DG. Implicit Solvation Models: Equilibria, Structure, Spectra, and Dynamics. Chem Rev 1999; 99:2161-2200. [PMID: 11849023 DOI: 10.1021/cr960149m] [Citation(s) in RCA: 1715] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christopher J. Cramer
- Department of Chemistry and Supercomputer Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431
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Alagona G, Ghio C, Villani V. Basis Set, Level, and Continuum Solvation Effects on the Stability of a Synthetic Dipeptide: PIDOTIMOD. J Phys Chem A 1999. [DOI: 10.1021/jp991063a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giuliano Alagona
- CNR-ICQEM, Institute of Quantum Chemistry and Molecular Energetics, Via Risorgimento 35, I-56126 Pisa, Italy, and Dipartimento di Chimica, Università della Basilicata, Via N. Sauro 85, I-85100 Potenza, Italy
| | - Caterina Ghio
- CNR-ICQEM, Institute of Quantum Chemistry and Molecular Energetics, Via Risorgimento 35, I-56126 Pisa, Italy, and Dipartimento di Chimica, Università della Basilicata, Via N. Sauro 85, I-85100 Potenza, Italy
| | - Vincenzo Villani
- CNR-ICQEM, Institute of Quantum Chemistry and Molecular Energetics, Via Risorgimento 35, I-56126 Pisa, Italy, and Dipartimento di Chimica, Università della Basilicata, Via N. Sauro 85, I-85100 Potenza, Italy
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Ruiz-López MF, Oliva A, Tuñón I, Bertrán J. Self-Consistent Reaction Field Calculations of Nonequilibrium Solvent Effects on Proton Transfer Processes through Low-Barrier Hydrogen Bonds. J Phys Chem A 1998. [DOI: 10.1021/jp983288b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. F. Ruiz-López
- Laboratoire de Chimie Théorique, UMR CNRS-UHP 7565, Université Henri Poincaré, Nancy I, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, Unitat de Química Física, Universitat Autónoma de Barcelona, 08193 Bellaterra (Barcelona), Spain, and Departamento de Química Física, Universidad de Valencia, 46100 Burjasot, Spain
| | - A. Oliva
- Laboratoire de Chimie Théorique, UMR CNRS-UHP 7565, Université Henri Poincaré, Nancy I, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, Unitat de Química Física, Universitat Autónoma de Barcelona, 08193 Bellaterra (Barcelona), Spain, and Departamento de Química Física, Universidad de Valencia, 46100 Burjasot, Spain
| | - I. Tuñón
- Laboratoire de Chimie Théorique, UMR CNRS-UHP 7565, Université Henri Poincaré, Nancy I, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, Unitat de Química Física, Universitat Autónoma de Barcelona, 08193 Bellaterra (Barcelona), Spain, and Departamento de Química Física, Universidad de Valencia, 46100 Burjasot, Spain
| | - J. Bertrán
- Laboratoire de Chimie Théorique, UMR CNRS-UHP 7565, Université Henri Poincaré, Nancy I, BP 239, 54506 Vandoeuvre-lès-Nancy Cedex, France, Unitat de Química Física, Universitat Autónoma de Barcelona, 08193 Bellaterra (Barcelona), Spain, and Departamento de Química Física, Universidad de Valencia, 46100 Burjasot, Spain
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Li GS, Martins-Costa M, Millot C, Ruiz-López M. AM1/TIP3P molecular dynamics simulation of imidazole proton-relay processes in aqueous solution. Chem Phys Lett 1998. [DOI: 10.1016/s0009-2614(98)01128-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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