1
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Zhang C, Zhou J, Wang Y. Effects of Carbon Spacer Length on Conformational Transitions and Protein Adsorption of Polyzwitterions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13365-13374. [PMID: 38904255 DOI: 10.1021/acs.langmuir.4c00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
The properties of polyzwitterions are closely linked to their carbon spacer length (CSL) between oppositely charged groups. A thorough understanding of the effect of CSL on the properties of polyzwitterion-functionalized membranes is important for their fouling resistance and separation performances. In this work, polyzwitterion-functionalized membranes with different CSLs are prepared by coupling selective swelling-induced pore generation with zwitterionization, and the investigation is focused on comprehending the molecular mechanisms underlying protein resistance and conformational transitions within polyzwitterions under varying CSLs. The zwitterionized films show an enhancement in the surface negative potential with the increase of CSL, attributed to the negatively charged groups distanced from the positively charged groups. Quartz crystal microbalance with dissipation (QCM-D) demonstrates that zwitterionized films with different CSLs display distinct levels of resistance to protein adsorption. The trimethylamine N-oxide-derived polymer (PTMAO, CSL = 0) zwitterionized film shows the highest resistance compared to the poly(3-[dimethyl(2'-methacryloyloxyethyl] ammonio) ethanesulfonate (PMAES, CSL = 2) zwitterionized film and the poly(sulfobetaine methacrylate) (PSBMA, CSL = 3) zwitterionized film, owing to its electrical neutrality and pronounced hydrophilicity. Moreover, analysis of the anti-polyelectrolyte behaviors reveals that PTMAO does not undergo a significant conformation transition in deionized water and salt solutions, while the conformations of PMAES and PSBMA display to be more salt-dependent as the CSL increases, attributed to their increased polarization and dipole moment. As a result, the permeability of zwitterionized membranes exhibits enhanced salt responsiveness with the increase in CSL. The findings of this study are expected to facilitate the design of adsorption-resistant surfaces desired in diverse fields.
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Affiliation(s)
- Chenxu Zhang
- Research Institute of Interdisciplinary Science & School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, China
| | - Jiemei Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Yong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, Jiangsu 211816, China
- School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China
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2
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Pallavi L, Tonannavar J, Tonannavar J. Molecular dynamics simulation, DFT calculations and vibrational spectroscopic study of N H•••O bound dimer models for DL-β-phenylalanine and 3-amino-3-(4-chlorophenyl)propionic acid. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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3
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Uriza-Prias DM, Méndez-Blas A, Rivas-Silva JF. A study of the effects of the polarity of the solvents acetone and cyclohexane on the luminescent properties of tryptophan. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120434. [PMID: 34624817 DOI: 10.1016/j.saa.2021.120434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/30/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
The luminescent properties of tryptophan in solvents less polar than water, such as acetone, and non-polar ones, such as cyclohexane, are experimentally studied and compared with theoretical calculations using time-dependent density functional theory (TD-DFT) methods. Since tryptophan may present different configurations and charge distributions, the most stable conformer is analyzed for both solvents, including its neutral and zwitterionic forms. To perform the simulation two clusters are proposed with the Zpt conformer in acetone: [Formula: see text] and [Formula: see text] , and four clusters with the Nag+ conformer in cyclohexane: (Trp)1-(C6H12), (Trp)2-(C6H12), (Trp)3-(C6H12) and (Trp)4-(C6H12), in order to conveniently emulate the concentration in each solvent by reducing the distance between adjacent tryptophan molecules as the concentration increases, since there is no control over the volume parameter. In each case, the UV-vis absorption is computed and compared with the experimental excitation spectra; the results show a good agreement. This calculation allows a more detailed analysis of the experimental results based on the properties of the molecular orbitals involved in electronic transitions. In the present work, a strong effect of the solvent acetone on tryptophan is observed; for this solvent, a charge transfer from the solute to solvent happens. This behavior does not occur with water (polar solvent) or cyclohexane (non-polar solvent). Finally, experimental spectroscopic data of Trp in cyclohexane are explained through the hydrogen bonds between amino acid molecules present in the fluorescent states. In this case, the theoretical and experimental results are compared and also show good agreement.
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Affiliation(s)
- D M Uriza-Prias
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J -48, 72570 Puebla, Pue, Mexico.
| | - A Méndez-Blas
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J -48, 72570 Puebla, Pue, Mexico
| | - J F Rivas-Silva
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apdo. Postal J -48, 72570 Puebla, Pue, Mexico
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Hernández B, Pflüger F, Ghomi M. Aspartate: An interesting model for analyzing dipole‐ion and ion pair interactions through its oppositely charged amine and acid groups. J Comput Chem 2020; 41:1402-1410. [DOI: 10.1002/jcc.26184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/10/2020] [Accepted: 02/17/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Belén Hernández
- Laboratoire Matrice Extracellulaire et Dynamique Cellulaire (MEDyC)UMR 7369, Université de Reims, Faculté des Sciences Moulin de la Housse, Reims Cedex 2 France
- Université Sorbonne Paris Nord, UFR Santé‐Médecine‐Biologie HumaineGroupe de Biophysique Moléculaire Bobigny Cedex France
| | - Fernando Pflüger
- Université Sorbonne Paris Nord, UFR Santé‐Médecine‐Biologie HumaineGroupe de Biophysique Moléculaire Bobigny Cedex France
| | - Mahmoud Ghomi
- Laboratoire Matrice Extracellulaire et Dynamique Cellulaire (MEDyC)UMR 7369, Université de Reims, Faculté des Sciences Moulin de la Housse, Reims Cedex 2 France
- Université Sorbonne Paris Nord, UFR Santé‐Médecine‐Biologie HumaineGroupe de Biophysique Moléculaire Bobigny Cedex France
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5
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Ghassemizadeh R, Moore B, Momose T, Walter M. Stability and IR Spectroscopy of Zwitterionic Form of β-Alanine in Water Clusters. J Phys Chem B 2019; 123:4392-4399. [DOI: 10.1021/acs.jpcb.9b00654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Reyhaneh Ghassemizadeh
- Physikalisches Institut, Universität Freiburg, Herrmann-Herder-Strasse 3, D-79104 Freiburg, Germany
| | - Brendan Moore
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - Takamasa Momose
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada V6T 1Z1
| | - Michael Walter
- Physikalisches Institut, Universität Freiburg, Herrmann-Herder-Strasse 3, D-79104 Freiburg, Germany
- FIT Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
- Fraunhofer IWM, MikroTribologie Centrum μTC, Wöhlerstrasse 11, D-79108 Freiburg, Germany
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6
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An ab iniio study on the micro-solvation of amino acids: On the number of water molecules necessary to stabilize the zwitter ion. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.12.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Li H, Jiang J, Luo Y. Identification of the smallest peptide with a zwitterion as the global minimum: a first-principles study on arginine-containing peptides. Phys Chem Chem Phys 2018; 19:12117-12126. [PMID: 28443881 DOI: 10.1039/c7cp01380a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zwitterions are believed to play an important role in determining the structures, properties and functions of peptides and proteins. However, the smallest peptide with a zwitterionic structure as the global minimum in the gas phase is still not yet identified. In this study, an effective step-by-step strategy has been used to characterize the stable conformers of arginine-containing peptides arginylalanine (ArgAla) and arginylserine (ArgSer). Energy calculations at the DSD-PBEP86-D3BJ/aug-cc-pVTZ level and further extrapolation to the complete basis set (CBS) limit have confirmed, for the first time, that ArgSer appears to be a promising candidate as the smallest peptide with a zwitterionic global minimum structure. First-principles simulations have been performed for near-edge X-ray absorption fine-structure (NEXAFS) spectra and X-ray photoelectron spectra (XPS) at C, N and O K-edges, as well as for infrared (IR) spectra of these arginine-containing peptides. Notable spectral differences were found which enable the unambiguous identification of different neutral forms in future experiments. Our study thus provides valuable insights into the structural stability of zwitterions with the increase of molecular size and illustrates the competition between the canonical and zwitterionic isomers.
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Affiliation(s)
- Hongbao Li
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China.
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Li H, Hu A, Jiang J, Luo Y. Systematic Study on Hydrated Arginine: Clear Theoretical Evidence for the Canonical-to-Zwitterionic Structure Transition. J Phys Chem A 2017; 121:3598-3605. [PMID: 28441493 DOI: 10.1021/acs.jpca.7b02008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Extensive ab initio investigations have been performed to characterize the stable conformers of hydrated arginine (Arg-H2O). Many new low-energy canonical Arg-H2O conformers were identified and they are more stable than previous results. The large energy differences (more than 5.00 kcal mol-1) between the canonical and zwitterionic Arg-H2O isomers calculated by the composite CBS-QB3 method confirmed the dominance of the zwitterions. The micro effects of corrections of the zero-point energy and the basis set superposition error on the stability of hydrated isomers were carefully examined for the first time. The infrared (IR) spectra were simulated at a recommended temperature and the notable spectral differences enable the unambiguous identification of the different hydrated forms. Further transition state calculations revealed that the canonical Arg-H2O can be transformed to the zwitterions using the amino group as a bridge. Our study thus shows valuable insights into the hydration of large flexible molecules and provides solid theoretical evidence for the canonical-to-zwitterionic structure transition of hydrated arginine.
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Affiliation(s)
- Hongbao Li
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Andong Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Jun Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China , Hefei, Anhui 230026, China.,Guizhou Provincial Key Laboratory of Computational Nano-Material Science, and Guizhou Synergetic Innovation Center of Scientific Big Data for Advanced Manufacturing Technology, Guizhou Education University , Guiyang, Guizhou 550018, China
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9
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Riffet V, Bouchoux G, Frison G. Microhydration of Protonated Nα-Acetylhistidine: A Theoretical Approach. J Phys Chem B 2015; 119:11527-39. [PMID: 26252717 DOI: 10.1021/acs.jpcb.5b05581] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Extensive exploration of the potential energy surfaces of protonated Nα-acetylhistidine hydrated by 0-3 molecules of water was performed. The methodology combined hierarchical and genealogical (Darwin family tree) approaches using polarizable AMOEBA force field and M06 functional. It is demonstrated that this mixed approach allows recovering a larger number of conformers than the number recovered by using any one of the two methods alone. Hydration enthalpies of protonated Nα-acetylhistidine and of model compounds have been computed using higher theoretical methods, up to the G4MP2 procedure. Excellent agreement with experiment is observed for successive hydration of methylamonium and imidazolium cations using MP2/6-311++G(2d,2p)//M06/6-311++G(d,p) and G4MP2 methods, thereby validating the theory levels used for hydrated protonated Nα-acetylhistidine. It is found that the first hydration enthalpy of protonated Nα-acetylhistidine is ca. 10 kJ mol(-1) lower than that of imidazolium, a result explained by the local environment of the positively charged imidazolium moiety.
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Affiliation(s)
- Vanessa Riffet
- Laboratoire de Chimie Moléculaire, Ecole Polytechnique and CNRS , 91128 Palaiseau cedex, France
| | - Guy Bouchoux
- Laboratoire de Chimie Moléculaire, Ecole Polytechnique and CNRS , 91128 Palaiseau cedex, France
| | - Gilles Frison
- Laboratoire de Chimie Moléculaire, Ecole Polytechnique and CNRS , 91128 Palaiseau cedex, France
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10
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Isaev AN. Keto-enol tautomerization of a peptide group with proton transfer through a water bridge. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2015. [DOI: 10.1134/s0036024415080154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Gadre SR, Yeole SD, Sahu N. Quantum chemical investigations on molecular clusters. Chem Rev 2014; 114:12132-73. [PMID: 25341561 DOI: 10.1021/cr4006632] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Shridhar R Gadre
- Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur 208 016, India
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12
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Pathak AK. Stabilizing the zwitter-ionic form of amino acids in the gas phase: An ab initio study on the minimum number of solvents and ions. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.07.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Wang F, Ahmed M. Sitting above the maze: recent model discoveries in molecular science. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2014.923570] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Méndez-Hurtado J, Isabel Menéndez M, López R, Ruiz-López MF. An ab initio analysis of the structure of l-tryptophan tautomers in microhydrated environments, in water and in hydrophobic solvents. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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15
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Wang F, Ganesan A. Fragment based electronic structural analysis of l-phenylalanine using calculated ionization spectroscopy and dual space analysis. RSC Adv 2014. [DOI: 10.1039/c4ra09146a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fragmentation schemes in phenylalanine revealed using ionization spectroscopy and dual space analysis.
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Affiliation(s)
- Feng Wang
- Molecular Model Discovery Laboratory
- Department of Chemistry and Biotechnology
- Faculty of Sciences
- Engineering and Technology
- Swinburne University of Technology
| | - Aravindhan Ganesan
- Molecular Model Discovery Laboratory
- Department of Chemistry and Biotechnology
- Faculty of Sciences
- Engineering and Technology
- Swinburne University of Technology
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16
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Ganesan A, Dreyer J, Wang F, Akola J, Larrucea J. Density functional study of Cu2+-phenylalanine complex under micro-solvation environment. J Mol Graph Model 2013; 45:180-91. [DOI: 10.1016/j.jmgm.2013.08.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 07/15/2013] [Accepted: 08/17/2013] [Indexed: 10/26/2022]
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17
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Chutia S, Rossi M, Blum V. Water Adsorption at Two Unsolvated Peptides with a Protonated Lysine Residue: From Self-Solvation to Solvation. J Phys Chem B 2012; 116:14788-804. [DOI: 10.1021/jp3098268] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sucismita Chutia
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Theory
Department, D-14195 Berlin, Germany
| | - Mariana Rossi
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Theory
Department, D-14195 Berlin, Germany
| | - Volker Blum
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Theory
Department, D-14195 Berlin, Germany
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18
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Kim JY, Won GY, Lee S. Effects of Microsolvation on the Stability of Zwitterionic Valine. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.11.3797] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Chen YL, Doltsinis NL, Hider RC, Barlow DJ. Prediction of Absolute Hydroxyl pKa Values for 3-Hydroxypyridin-4-ones. J Phys Chem Lett 2012; 3:2980-2985. [PMID: 26292237 DOI: 10.1021/jz301061m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
pKa values have been calculated for a series of 3-hydroxypyridin-4-one (HPO) chelators in aqueous solution using coordination constrained ab initio molecular dynamics (AIMD) in combination with thermodynamic integration. This dynamics-based methodology in which the solvent is treated explicitly at the ab initio level has been compared with more commonly used simple, static, approaches. Comparison with experimental numbers has confirmed that the AIMD-based approach predicts the correct trend in the pKa values and produces the lowest average error (∼0.3 pKa units). The corresponding pKa predictions made via static quantum mechanical calculations overestimate the pKa values by 0.3-7 pKa units, with the extent of error dependent on the choice of thermodynamic cycle employed. The use of simple quantitative structure property relationship methods gives prediction errors of 0.3-1 pKa units, with some values overestimated and some underestimated. Beyond merely calculating pKa values, the AIMD simulations provide valuable additional insight into the atomistic details of the proton transfer mechanism and the solvation structure and dynamics at all stages of the reaction. For all HPOs studied, it is seen that proton transfer takes place along a chain of three H2O molecules, although direct hydrogen bonds are seen to form transiently. Analysis of the solvation structure before and after the proton transfer event using radial pair distribution functions and integrated number densities suggests that the trends in the pKa values correlate with the strength of the hydrogen bond and the average number of solvent molecules in the vicinity of the donor oxygen.
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Affiliation(s)
- Yu-Lin Chen
- †Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London, SE1 9NH, U.K
| | - Nikos L Doltsinis
- ‡Department of Physics, King's College London, Strand, London, WC2R 2LS, U.K
| | - Robert C Hider
- †Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London, SE1 9NH, U.K
| | - Dave J Barlow
- †Institute of Pharmaceutical Science, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London, SE1 9NH, U.K
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Vianello R, Mavri J. Microsolvation of the histamine monocation in aqueous solution: the effect on structure, hydrogen bonding ability and vibrational spectrum. NEW J CHEM 2012. [DOI: 10.1039/c2nj20877f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Purushotham U, Vijay D, Narahari Sastry G. A computational investigation and the conformational analysis of dimers, anions, cations, and zwitterions of L-phenylalanine. J Comput Chem 2011; 33:44-59. [DOI: 10.1002/jcc.21942] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Accepted: 07/16/2011] [Indexed: 11/10/2022]
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22
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Vöhringer-Martinez E, Toro-Labbé A. The mean reaction force: A method to study the influence of the environment on reaction mechanisms. J Chem Phys 2011; 135:064505. [DOI: 10.1063/1.3624388] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Hwang TK, Eom GY, Choi MS, Jang SW, Kim JY, Lee S, Lee Y, Kim B. Microsolvation of Lysine by Water: Computational Study of Stabilized Zwitterion. J Phys Chem B 2011; 115:10147-53. [DOI: 10.1021/jp202850s] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tae-Kyu Hwang
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Ga-Young Eom
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Min-Seo Choi
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Sung-Woo Jang
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Ju-Young Kim
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Sungyul Lee
- Department of Applied Chemistry, Kyung Hee University, Kyungki 446-701, South Korea
| | - Yonghoon Lee
- Department of Chemistry, Mokpo National University, Muan-gun, Jeonnam 534-729, South Korea
| | - Bongsoo Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, South Korea
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24
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McDowell SA, Walcott JA. A computational study of hypoglycin A, the toxin of the unripe Jamaican ackee fruit. Mol Phys 2011. [DOI: 10.1080/00268976.2010.524895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Duarte F, Vöhringer-Martinez E, Toro-Labbé A. Insights on the mechanism of proton transfer reactions in amino acids. Phys Chem Chem Phys 2011; 13:7773-82. [DOI: 10.1039/c0cp02076a] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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27
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Hernández B, Pflüger F, Adenier A, Kruglik SG, Ghomi M. Vibrational Analysis of Amino Acids and Short Peptides in Hydrated Media. VIII. Amino Acids with Aromatic Side Chains: l-Phenylalanine, l-Tyrosine, and l-Tryptophan. J Phys Chem B 2010; 114:15319-30. [DOI: 10.1021/jp106786j] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Belén Hernández
- Groupe de Biophysique Moléculaire, UFR SMBH, Université Paris 13, 74 rue Marcel Cachin, 93017 Bobigny cedex, France; Laboratoire ITODYS, UMR 7086, Université Paris Diderot, Bâtiment Lavoisier, 15, rue Jean-Antoine de Baïf, 75205 Paris cedex 13, France; and Laboratoire Acides Nucléiques et Biophotonique (FRE 3207), Université Pierre et Marie Curie Paris 06, 75252 Paris, France
| | - Fernando Pflüger
- Groupe de Biophysique Moléculaire, UFR SMBH, Université Paris 13, 74 rue Marcel Cachin, 93017 Bobigny cedex, France; Laboratoire ITODYS, UMR 7086, Université Paris Diderot, Bâtiment Lavoisier, 15, rue Jean-Antoine de Baïf, 75205 Paris cedex 13, France; and Laboratoire Acides Nucléiques et Biophotonique (FRE 3207), Université Pierre et Marie Curie Paris 06, 75252 Paris, France
| | - Alain Adenier
- Groupe de Biophysique Moléculaire, UFR SMBH, Université Paris 13, 74 rue Marcel Cachin, 93017 Bobigny cedex, France; Laboratoire ITODYS, UMR 7086, Université Paris Diderot, Bâtiment Lavoisier, 15, rue Jean-Antoine de Baïf, 75205 Paris cedex 13, France; and Laboratoire Acides Nucléiques et Biophotonique (FRE 3207), Université Pierre et Marie Curie Paris 06, 75252 Paris, France
| | - Sergei G. Kruglik
- Groupe de Biophysique Moléculaire, UFR SMBH, Université Paris 13, 74 rue Marcel Cachin, 93017 Bobigny cedex, France; Laboratoire ITODYS, UMR 7086, Université Paris Diderot, Bâtiment Lavoisier, 15, rue Jean-Antoine de Baïf, 75205 Paris cedex 13, France; and Laboratoire Acides Nucléiques et Biophotonique (FRE 3207), Université Pierre et Marie Curie Paris 06, 75252 Paris, France
| | - Mahmoud Ghomi
- Groupe de Biophysique Moléculaire, UFR SMBH, Université Paris 13, 74 rue Marcel Cachin, 93017 Bobigny cedex, France; Laboratoire ITODYS, UMR 7086, Université Paris Diderot, Bâtiment Lavoisier, 15, rue Jean-Antoine de Baïf, 75205 Paris cedex 13, France; and Laboratoire Acides Nucléiques et Biophotonique (FRE 3207), Université Pierre et Marie Curie Paris 06, 75252 Paris, France
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Pathak AK, Mukherjee T, Maity DK. Global Minimum-Energy Structure and Spectroscopic Properties of I2.ââ
nâH2O Clusters: A Monte Carlo Simulated Annealing Study. Chemphyschem 2010; 11:220-8. [DOI: 10.1002/cphc.200900551] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Conformational changes of l-phenylalanine – Near infrared-induced mechanism of dimerization: B3LYP studies. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2009.06.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pathak AK, Mukherjee T, Maity DK. Theoretical Study on the Spectroscopic Properties of CO3.−.nH2O Clusters: Extrapolation to Bulk. Chemphyschem 2008; 9:2259-64. [DOI: 10.1002/cphc.200800429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Im S, Jang SW, Lee S, Lee Y, Kim B. Arginine Zwitterion is More Stable than the Canonical Form when Solvated by a Water Molecule. J Phys Chem A 2008; 112:9767-70. [DOI: 10.1021/jp801933y] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Suk Im
- College of Environmental Science and Applied Chemistry (BK21), Kyunghee University, Kyungki 449-701, S. Korea, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, S. Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, S. Korea
| | - Sung-Woo Jang
- College of Environmental Science and Applied Chemistry (BK21), Kyunghee University, Kyungki 449-701, S. Korea, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, S. Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, S. Korea
| | - Sungyul Lee
- College of Environmental Science and Applied Chemistry (BK21), Kyunghee University, Kyungki 449-701, S. Korea, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, S. Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, S. Korea
| | - Yonghoon Lee
- College of Environmental Science and Applied Chemistry (BK21), Kyunghee University, Kyungki 449-701, S. Korea, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, S. Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, S. Korea
| | - Bongsoo Kim
- College of Environmental Science and Applied Chemistry (BK21), Kyunghee University, Kyungki 449-701, S. Korea, Advanced Photonics Research Institute, Gwangju Institute of Science and Technology, Gwangju 500-712, S. Korea, and Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejon 305-701, S. Korea
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Michaux C, Wouters J, Perpète EA, Jacquemin D. Modeling the Microhydration of Protonated Alanine. J Phys Chem B 2008; 112:9896-902. [DOI: 10.1021/jp803476k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Michaux C, Wouters J, Perpète EA, Jacquemin D. Stepwise Hydration of Protonated Proline. J Phys Chem B 2008; 112:7702-5. [DOI: 10.1021/jp8023155] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Michaux C, Wouters J, Perpète EA, Jacquemin D. Microhydration of Protonated Glycine: An ab initio Family Tree. J Phys Chem B 2008; 112:2430-8. [DOI: 10.1021/jp710034r] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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