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Williams AE, Hammer NI, Fortenberry RC, Reinemann DN. Tracking the Amide I and αCOO- Terminal ν(C=O) Raman Bands in a Family of l-Glutamic Acid-Containing Peptide Fragments: A Raman and DFT Study. Molecules 2021; 26:4790. [PMID: 34443382 PMCID: PMC8399447 DOI: 10.3390/molecules26164790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
The E-hook of β-tubulin plays instrumental roles in cytoskeletal regulation and function. The last six C-terminal residues of the βII isotype, a peptide of amino acid sequence EGEDEA, extend from the microtubule surface and have eluded characterization with classic X-ray crystallographic techniques. The band position of the characteristic amide I vibration of small peptide fragments is heavily dependent on the length of the peptide chain, the extent of intramolecular hydrogen bonding, and the overall polarity of the fragment. The dependence of the E residue's amide I ν(C=O) and the αCOO- terminal ν(C=O) bands on the neighboring side chain, the length of the peptide fragment, and the extent of intramolecular hydrogen bonding in the structure are investigated here via the EGEDEA peptide. The hexapeptide is broken down into fragments increasing in size from dipeptides to hexapeptides, including EG, ED, EA, EGE, EDE, DEA, EGED, EDEA, EGEDE, GEDEA, and, finally, EGEDEA, which are investigated with experimental Raman spectroscopy and density functional theory (DFT) computations to model the zwitterionic crystalline solids (in vacuo). The molecular geometries and Boltzmann sum of the simulated Raman spectra for a set of energetic minima corresponding to each peptide fragment are computed with full geometry optimizations and corresponding harmonic vibrational frequency computations at the B3LYP/6-311++G(2df,2pd) level of theory. In absence of the crystal structure, geometry sampling is performed to approximate solid phase behavior. Natural bond order (NBO) analyses are performed on each energetic minimum to quantify the magnitude of the intramolecular hydrogen bonds. The extent of the intramolecular charge transfer is dependent on the overall polarity of the fragment considered, with larger and more polar fragments exhibiting the greatest extent of intramolecular charge transfer. A steady blue shift arises when considering the amide I band position moving linearly from ED to EDE to EDEA to GEDEA and, finally, to EGEDEA. However, little variation is observed in the αCOO- ν(C=O) band position in this family of fragments.
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Affiliation(s)
- Ashley E. Williams
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677, USA; (A.E.W.); (N.I.H.)
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677, USA; (A.E.W.); (N.I.H.)
| | - Ryan C. Fortenberry
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS 38677, USA; (A.E.W.); (N.I.H.)
| | - Dana N. Reinemann
- Department of Biomedical Engineering, University of Mississippi, University, MS 38677, USA
- Department of Chemical Engineering, University of Mississippi, University, MS 38677, USA
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Keiderling TA. Structure of Condensed Phase Peptides: Insights from Vibrational Circular Dichroism and Raman Optical Activity Techniques. Chem Rev 2020; 120:3381-3419. [DOI: 10.1021/acs.chemrev.9b00636] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Timothy A. Keiderling
- Department of Chemistry, University of Illinois at Chicago 845 West Taylor Street m/c 111, Chicago, Illinois 60607-7061, United States
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Declerck V, Pérez‐Mellor A, Guillot R, Aitken DJ, Mons M, Zehnacker A. Vibrational circular dichroism as a probe of solid‐state organisation of derivatives of cyclic β‐amino acids:
Cis
‐ and
trans
‐2‐aminocyclobutane‐1‐carboxylic acid. Chirality 2019; 31:547-560. [DOI: 10.1002/chir.23083] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Valérie Declerck
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182Université Paris Sud, Université Paris‐Saclay Orsay France
| | - Ariel Pérez‐Mellor
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris‐SudUniversité Paris‐Saclay Orsay France
| | - Régis Guillot
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182Université Paris Sud, Université Paris‐Saclay Orsay France
| | - David J. Aitken
- CP3A Organic Synthesis Group and Services Communs, ICMMO, UMR 8182Université Paris Sud, Université Paris‐Saclay Orsay France
| | - Michel Mons
- Laboratoire Interactions Dynamiques et Lasers (LIDYL)Université Paris Saclay Paris France
| | - Anne Zehnacker
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris‐SudUniversité Paris‐Saclay Orsay France
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4
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Storch G, Trapp O. Supramolecular chirality transfer in a stereodynamic catalysts. Chirality 2018; 30:1150-1160. [PMID: 30103282 DOI: 10.1002/chir.23007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/10/2018] [Accepted: 07/17/2018] [Indexed: 11/10/2022]
Abstract
We present rhodium catalysts that contain stereodynamic axially chiral biphenol-derived phosphinite ligands modified with non-stereoselective amides for non-covalent interactions. A chirality transfer was achieved with (R)- or (S)-acetylphenylalanine methyl amide, and the interaction mechanism was investigated by NMR measurements. These interactions at the non-stereoselective interaction sites and the formation of supramolecular complexes result in an enrichment of either the (Rax )- or (Sax ) enantiomer of the tropos catalysts, which in turn provide the (R)- or (S)-acetylphenylalanine methyl ester in the hydrogenation of (Z)-methyl-α-acetamidocinnamate.
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Affiliation(s)
- Golo Storch
- Department Chemie, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Oliver Trapp
- Department Chemie, Ludwig-Maximilians-Universität München, Munich, Germany.,Max-Planck-Institute for Astronomy, Heidelberg, Germany
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Abstract
Fascinating anisotropy decay experiments have recently been performed on H2O ice Ih by Timmer and Bakker [R. L. A. Timmer, and H. J. Bakker, J. Phys. Chem. A 114, 4148 (2010)]. The very fast decay (on the order of 100 fs) is indicative of resonant energy transfer between OH stretches on different molecules. Isotope dilution experiments with deuterium show a dramatic dependence on the hydrogen mole fraction, which confirms the energy transfer picture. Timmer and Bakker have interpreted the experiments with a Förster incoherent hopping model, finding that energy transfer within the first solvation shell dominates the relaxation process. We have developed a microscopic theory of vibrational spectroscopy of water and ice, and herein we use this theory to calculate the anisotropy decay in ice as a function of hydrogen mole fraction. We obtain very good agreement with experiment. Interpretation of our results shows that four nearest-neighbor acceptors dominate the energy transfer, and that while the incoherent hopping picture is qualitatively correct, vibrational energy transport is partially coherent on the relevant timescale.
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Affiliation(s)
- L Shi
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - F Li
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - J L Skinner
- Theoretical Chemistry Institute and Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA
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Schwartz E, Liégeois V, Koepf M, Bodis P, Cornelissen JJLM, Brocorens P, Beljonne D, Nolte RJM, Rowan AE, Woutersen S, Champagne B. Beta Sheets with a Twist: The Conformation of Helical Polyisocyanopeptides Determined by Using Vibrational Circular Dichroism. Chemistry 2013; 19:13168-74. [DOI: 10.1002/chem.201300073] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 05/07/2013] [Indexed: 11/10/2022]
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Farag MH, Zúñiga J, Requena A, Bastida A. Instantaneous normal mode analysis of the vibrational relaxation of the amide I mode of alanine dipeptide in water. J Chem Phys 2013; 138:205102. [DOI: 10.1063/1.4805086] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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8
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Rodriguez JJ, Mukamel S. Probing ring currents in Mg-porphyrins by pump-probe spectroscopy. J Phys Chem A 2012; 116:11095-100. [PMID: 22881200 PMCID: PMC3738187 DOI: 10.1021/jp3035874] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Theoretical studies of Manz et al. have shown that upon excitation of a Mg-porphyrin molecule with a circularly polarized laser pulse, a ring current can be generated that is much stronger than what can be induced by means of an external magnetic field with present technology. We show that the circular dichroism signal of a Mg-porphyrin molecule that has been excited to a state with an inner ring current is proportional to the magnitude of the probability of this ring current and can be used for the detection of this current. In analogy to magnetic circular dichroism, it probes the symmetry of degenerate excited states.
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Affiliation(s)
- Justo J Rodriguez
- Department of Chemistry, University of California, Irvine, California 92697, USA
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Rhee H, Choi JH, Cho M. Infrared optical activity: electric field approaches in time domain. Acc Chem Res 2010; 43:1527-36. [PMID: 20931956 DOI: 10.1021/ar100090q] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Vibrational circular dichroism (VCD) spectroscopy provides detailed information about the absolute configurations of chiral molecules including biomolecules and synthetic drugs. This method is the infrared (IR) analogue of the more popular electronic CD spectroscopy that uses the ultraviolet and visible ranges of the electromagnetic spectrum. Because conventional electronic CD spectroscopy measures the difference in signal intensity, problems such as weak signal and low time-resolution can limit its utility. To overcome the difficulties associated with that approach, we have recently developed femtosecond IR optical activity (IOA) spectrometry, which directly measures the IOA free-induction-decay (FID), the impulsive chiroptical IR response that occurs over time. In this Account, we review the time-domain electric field measurement and calculation methods used to simultaneously characterize VCD and related vibrational optical rotatory dispersion (VORD) spectra. Although conventional methods measure the electric field intensity, this vibrational technique is based on a direct phase-and-amplitude measurement of the electric field of the chiroptical signal over time. This method uses a cross-polarization analyzer to carry out heterodyned spectral interferometry. The cross-polarization scheme enables us to selectively remove the achiral background signal, which is the dominant noise component present in differential intensity measurement techniques. Because we can detect the IOA FID signal in a phase-amplitude-sensitive manner, we can directly characterize the time-dependent electric dipole/magnetic dipole response function and the complex chiral susceptibility that contain information about the angular oscillations of charged particles. These parameters yield information about the VCD and VORD spectra. In parallel with such experimental developments, we have also calculated the IOA FID signal and the resulting VCD spectrum. These simulations use a quantum mechanical/molecular mechanical molecular dynamics (QM/MM MD) method and calculate the electric dipole/magnetic dipole cross-correlation function in the time domain. Although many quantum chemistry calculation approaches can only consider a limited number of geometry-optimized conformations of chiral molecules in a gas phase, this computational method includes the solute-solvent interactions and the inhomogeneous distributions of solute conformers in condensed phases. A subsequent Fourier transformation of the chiral response function produced a theoretical VCD spectrum in the entire mid-IR frequency range. Directly comparing theory and experiment, we demonstrate quantitative agreement between frequency-tunable femtosecond IOA measurements and QM/MM MD simulations of (1S)-β-pinene in CCl(4) solution. We anticipate that these direct IOA measurement and calculation methods will be applied to the studies of equilibrium chiroptical properties and structure determinations. These methods provide tools to investigate ultrafast structural dynamics of chiral systems with unprecedented time resolution.
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Affiliation(s)
- Hanju Rhee
- Korea Basic Science Institute, Seoul 136-713, Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 305-764, Korea
| | - Jun-Ho Choi
- Department of Chemistry, Korea University, Seoul 136-701, Korea
| | - Minhaeng Cho
- Korea Basic Science Institute, Seoul 136-713, Korea
- Department of Chemistry, Korea University, Seoul 136-701, Korea
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Oh KI, Kim W, Joo C, Yoo DG, Han H, Hwang GS, Cho M. Azido Gauche Effect on the Backbone Conformation of β-Azidoalanine Peptides. J Phys Chem B 2010; 114:13021-9. [DOI: 10.1021/jp107359m] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kwang-Im Oh
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Woosung Kim
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Cheonik Joo
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Dong-Geun Yoo
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Hogyu Han
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Geum-Sook Hwang
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
| | - Minhaeng Cho
- Department of Chemistry, Korea University, Seoul 136-701, Korea, and Korea Basic Science Institute, Seoul 136-713, Korea
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Yang G, Xu Y, Hou J, Zhang H, Zhao Y. Determination of the Absolute Configuration of Pentacoordinate Chiral Phosphorus Compounds in Solution by Using Vibrational Circular Dichroism Spectroscopy and Density Functional Theory. Chemistry 2010; 16:2518-27. [DOI: 10.1002/chem.200902501] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Yang S, Cho M. Direct calculations of vibrational absorption and circular dichroism spectra of alanine dipeptide analog in water: Quantum mechanical/molecular mechanical molecular dynamics simulations. J Chem Phys 2009; 131:135102. [DOI: 10.1063/1.3243078] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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13
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Conformational behavior of the simplest dipeptide: Formylglycine. Quantum chemical and matrix isolation FTIR study. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.06.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Abramavicius D, Palmieri B, Voronine DV, Šanda F, Mukamel S. Coherent multidimensional optical spectroscopy of excitons in molecular aggregates; quasiparticle versus supermolecule perspectives. Chem Rev 2009; 109:2350-408. [PMID: 19432416 PMCID: PMC2975548 DOI: 10.1021/cr800268n] [Citation(s) in RCA: 327] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Lee KK, Kim E, Joo C, Song J, Han H, Cho M. Site-selective Intramolecular Hydrogen-Bonding Interactions in Phosphorylated Serine and Threonine Dipeptides. J Phys Chem B 2008; 112:16782-7. [DOI: 10.1021/jp803285x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyung-Koo Lee
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Eunmyung Kim
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Cheonik Joo
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Jaewook Song
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Hogyu Han
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
| | - Minhaeng Cho
- Department of Chemistry and Center for Multidimensional Spectroscopy, Korea University, Seoul 136-701, Korea and Multidimensional Spectroscopy Laboratory, Korea Basic Science Institute, Seoul 136-713, Korea
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