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Bian B, Miao X, Zhao X, Lai C, Chen Y, Zhou M, Yong Q. Impacts of monosaccharide composition on immunomodulation by cello-pentaose, manno-pentaose, and xylo-pentaose: Unraveling the underlying molecular mechanisms. Carbohydr Polym 2024; 334:122006. [PMID: 38553211 DOI: 10.1016/j.carbpol.2024.122006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 04/02/2024]
Abstract
Different types of functional oligosaccharides exhibit varying degrees of immune-enhancing effects, which might be attributable to differences in their glycosyl structures. The differences in the immunomodulatory action of three functional oligosaccharides with distinct glycosyl compositions: cello-oligosaccharides (COS), manno-oligosaccharides (MOS), and xylo-oligosaccharides (XOS), were investigated in mouse-derived macrophage RAW264.7. Moreover, the immune enhancement mechanism of oligosaccharides with diverse glycosyl compositions was investigated from a molecular interaction perspective. The TLR4-dependent immunoregulatory effect of functional oligosaccharides was shown by measuring the levels of tumor necrosis factor (TNF)-α and interleukin (IL)-6 in RAW264.7 cells treated with different functional oligosaccharides, both with and without Resatorvid [TAK-242] (a Toll-like receptor 4 [TLR4] inhibitor). Western blot analysis showed that binding of the three oligosaccharides to TLR4 activated the downstream signaling pathway and consequently enhanced the immune response. The fluorescence spectra and molecular docking results revealed that the main mechanisms by which these oligosaccharides attach to the TLR4 active pocket are hydrogen bonds and van der Waals forces. Functional oligosaccharides were ranked according to their affinity for TLR4, as follows: MOS > COS > XOS, indicating that oligosaccharides or polysaccharides containing mannose units may confer significant advantages for immune enhancement.
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Affiliation(s)
- Bin Bian
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoyang Miao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoxue Zhao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chenhuan Lai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yanan Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Mengyi Zhou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Qiang Yong
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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2
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Abuhatab S, Pal S, Roberts EPL, Trifkovic M. Electrochemical Regeneration of Highly Stable and Sustainable Cellulose/Graphene Adsorbent Saturated with Dissolved Organic Dye. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38316141 DOI: 10.1021/acs.langmuir.3c03265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Electrochemical regeneration of adsorbents presents a cost-effective and environmentally friendly approach. Yet, its application to 3D structured adsorbents such as cellulose/graphene-based aerogels remains largely unexplored. This study introduces a method for producing these aerogels, highlighting their significant adsorption capacity for dissolved organic pollutants and resilience during electrochemical regeneration. By adjusting the ratio of hydrophobized cellulose nanofibers to graphene, the aerogels demonstrate a tunable adsorption capacity, ranging from 56 to 228 mg/g. Hydrophobization using oleic acid is vital for maintaining the aerogels' structural stability in water. Notably, the aerogels maintain structural integrity and efficiency over at least 18 electrochemical regeneration cycles, underscoring their potential for long-term environmental applications. The increase in adsorption capacity observed after regeneration cycles, approximately 10-20% by the fifth cycle, is attributed to electrochemical surface roughening and the creation of new adsorption sites. The tunability and durability of these aerogels offer a sustainable solution for adsorption with electrochemical regeneration technology.
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Affiliation(s)
- Saqr Abuhatab
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada
| | - Sucharita Pal
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada
| | - Edward P L Roberts
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada
| | - Milana Trifkovic
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, Alberta T2N 1N4, Canada
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3
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Adhav V, Saikrishnan K. The Realm of Unconventional Noncovalent Interactions in Proteins: Their Significance in Structure and Function. ACS OMEGA 2023; 8:22268-22284. [PMID: 37396257 PMCID: PMC10308531 DOI: 10.1021/acsomega.3c00205] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 05/22/2023] [Indexed: 07/04/2023]
Abstract
Proteins and their assemblies are fundamental for living cells to function. Their complex three-dimensional architecture and its stability are attributed to the combined effect of various noncovalent interactions. It is critical to scrutinize these noncovalent interactions to understand their role in the energy landscape in folding, catalysis, and molecular recognition. This Review presents a comprehensive summary of unconventional noncovalent interactions, beyond conventional hydrogen bonds and hydrophobic interactions, which have gained prominence over the past decade. The noncovalent interactions discussed include low-barrier hydrogen bonds, C5 hydrogen bonds, C-H···π interactions, sulfur-mediated hydrogen bonds, n → π* interactions, London dispersion interactions, halogen bonds, chalcogen bonds, and tetrel bonds. This Review focuses on their chemical nature, interaction strength, and geometrical parameters obtained from X-ray crystallography, spectroscopy, bioinformatics, and computational chemistry. Also highlighted are their occurrence in proteins or their complexes and recent advances made toward understanding their role in biomolecular structure and function. Probing the chemical diversity of these interactions, we determined that the variable frequency of occurrence in proteins and the ability to synergize with one another are important not only for ab initio structure prediction but also to design proteins with new functionalities. A better understanding of these interactions will promote their utilization in designing and engineering ligands with potential therapeutic value.
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4
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Du K, Wang Y. Infinitenes as the Most Stable Form of Cycloarenes: The Interplay among π Delocalization, Strain, and π-π Stacking. J Am Chem Soc 2023; 145:10763-10778. [PMID: 37092900 DOI: 10.1021/jacs.3c01644] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The recent successful preparation of infinitene has sparked widespread attention due to its aesthetic appeal and synthetic challenge. Spectroscopic measurements and follow-up computational investigations suggest that infinitene holds fundamental significance and potential applications in chiroptics, optoelectronics, asymmetric synthesis, and supramolecular chemistry. However, unlike other looped polyarenes enriched with sizes and shapes, the infinitene molecule seems, so far, the only known example of this fascinating new form of nanocarbons, whose further exploitation would be considerably limited because of the lack of molecular diversity. Here, we introduce a whole new family of generalized infinitenes with different sizes and topologies. Three types of infinitene structures are rationally designed by joining two units of coronene, kekulene, or their extended analogs. The constructed molecules of varying sizes, each with a large number of possible topoisomers, are systematically studied by DFT calculations. Comprehensive analysis using a simple energy decomposition model uncovers that the stability of infinitenes is governed by the interplay among π delocalization, steric strain, and π-π stacking. While the first two factors are crucial to the stability of smaller infinitenes, the latter is the primary stabilizing interaction for larger infinitenes. Most importantly, we show that larger-sized infinitenes are actually the energetically most favorable form among all known looped polyarenes; their substantial thermodynamic stability surpassing that of circulenes, various carbon nanobelts, and kekulene-like macrocycles renders them promising targets for synthesis. The simulated 1H NMR, UV-vis, and circular dichroism spectra along with optical rotations for the most stable infinitene species may help their identification in future synthetic efforts.
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Affiliation(s)
- Ke Du
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
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5
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A Competition between Relative Stability and Binding Energy in Caffeine Phenyl-Glucose Aggregates: Implications in Biological Mechanisms. Int J Mol Sci 2023; 24:ijms24054390. [PMID: 36901823 PMCID: PMC10002916 DOI: 10.3390/ijms24054390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/16/2023] [Accepted: 02/19/2023] [Indexed: 02/25/2023] Open
Abstract
Hydrogen bonds and stacking interactions are pivotal in biological mechanisms, although their proper characterisation within a molecular complex remains a difficult task. We used quantum mechanical calculations to characterise the complex between caffeine and phenyl-β-D-glucopyranoside, in which several functional groups of the sugar derivative compete with each other to attract caffeine. Calculations at different levels of theory (M06-2X/6-311++G(d,p) and B3LYP-ED=GD3BJ/def2TZVP) agree to predict several structures similar in stability (relative energy) but with different affinity (binding energy). These computational results were experimentally verified by laser infrared spectroscopy, through which the caffeine·phenyl-β-D-glucopyranoside complex was identified in an isolated environment, produced under supersonic expansion conditions. The experimental observations correlate with the computational results. Caffeine shows intermolecular interaction preferences that combine both hydrogen bonding and stacking interactions. This dual behaviour had already been observed with phenol, and now with phenyl-β-D-glucopyranoside, it is confirmed and maximised. In fact, the size of the complex's counterparts affects the maximisation of the intermolecular bond strength because of the conformational adaptability given by the stacking interaction. Comparison with the binding of caffeine within the orthosteric site of the A2A adenosine receptor shows that the more strongly bound caffeine·phenyl-β-D-glucopyranoside conformer mimics the interactions occurring within the receptor.
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Murata C, Shin J, Konishi K. Anion-π interaction inside the polyanionic Mo 132O 372 cage with hydrophobic inner space. Chem Commun (Camb) 2023; 59:2441-2444. [PMID: 36734061 DOI: 10.1039/d2cc06875c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In this paper, we provide experimental evidence to indicate that the polyanionic Mo132O372 cage with a hydrophobic inner nanospace has a unique capability to participate in anion-π interactions by showing a preference for electron-deficient mono-substituted benzenes over non-electron-deficient guests in inclusion.
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Affiliation(s)
- Chinatsu Murata
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan.
| | - Jaesob Shin
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan.
| | - Katsuaki Konishi
- Graduate School of Environmental Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan. .,Faculty of Environmental Earth Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan
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7
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Xi J, Ng EWH, Ho CY. Unsymmetric N-Aryl Substituent Effects on Chiral NHC-Cu: Enantioselectivity and Reactivity Enhancement by Ortho-H and Syn-Configuration. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jianwei Xi
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Elvis Wang Hei Ng
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Chun-Yu Ho
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Grubbs Institute, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
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8
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A combined experimental and theoretical study to demonstrate the importance of V2O4 synthon in the crystal packing of an oxo-bridged dinuclear vanadium(V) complex with V2O4 core. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121279] [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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Imaizumi A, Nakada A, Matsumoto T, Yokoi T, Chang HC. Synthesis of Microporous Aluminosilicate by Direct Thermal Activation of Phenyl-Substituted Single-Source Aluminosilicate Molecular Precursors. Inorg Chem 2022; 61:13481-13496. [PMID: 35976816 DOI: 10.1021/acs.inorgchem.2c02006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The construction of aluminosilicates from versatile molecular precursors (MPs) represents a promising alternative strategy to conventional processes based on monomeric molecular or polymeric Al and Si sources. However, the use of MPs often suffers from drawbacks such as the decomposition of the core structures in the presence of solvents, acids, or bases. In this work, we demonstrate a simple thermal synthesis of porous aluminosilicates from single-source spiro-7-type MPs that consist of a tetrahedral Al atom and six Si atoms functionalized with 12 phenyl (Ph) groups, (C+)[Al{Ph2Si(OSiPh2O)2}2]- (C+[AlSi6]-; C+ = pyridinium cation (PyH+), Na+, K+, Rb+, or Cs+), without using a solvent or activator. Microporous aluminosilicates synthesized via the thermal treatment of C+[AlSi6]- under a 79% N2 + 21% O2 atmosphere exhibited extremely low carbon contents (0.10-1.28%), together with Si/Al ratios of 3.9-6.7 ± 0.2 and surface areas of 103.1-246.3 m2/g. The solid-state 27Al and 29Si MAS NMR spectra suggest that the obtained aluminosilicates with alkali cations retain a tetrahedral Al site derived from the spiro-7-type core structure. After a proton-exchange reaction, the aluminosilicates showed almost 1.5 times higher reactivity in the catalytic ring-opening of styrene oxide than the aluminosilicate before proton exchange due to the catalytically active OH site being predominantly bridged by tetrahedral Al and Si atoms. These results suggest that the present MP strategy is a promising method for the introduction of key structures into active inorganic materials.
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Affiliation(s)
- Akira Imaizumi
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Akinobu Nakada
- Department of Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takeshi Matsumoto
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Toshiyuki Yokoi
- Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan.,Tokyo Tech World Research Hub Initiative (WRHI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Ho-Chol Chang
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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10
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Luminescent Sensors Based on the Assembly of Coinage Metal Nanoclusters. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Coinage metals, such as Cu, Ag and Au, can form nanoclusters, which, when functionalized with ligands, have unique electronic and optical properties and are widely used in biomedical imaging, remote sensing, labeling, catalytic, etc. The mechanisms, structures and properties of nanocluster assemblies have been well reviewed. However, the collections and analyses of nanocluster assemblies for sensor application are few. This review examines different nanocluster sensor platforms with a focus on the assembly and analysis of the assembly processes and examples of applications.
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11
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Gibbs CA, Fedoretz-Maxwell BP, Warren JJ. On the roles of methionine and the importance of its microenvironments in redox metalloproteins. Dalton Trans 2022; 51:4976-4985. [PMID: 35253809 DOI: 10.1039/d1dt04387k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The amino acid residue methionine (Met) is commonly thought of as a ligand in redox metalloproteins, for example in cytochromes c and in blue copper proteins. However, the roles of Met can go beyond a simple ligand. The thioether functional group of Met allows it to be considered as a hydrophobic residue as well as one that is capable of weak dipolar interactions. In addition, the lone pairs on sulphur allow Met to interact with other groups, inluding the aforementioned metal ions. Because of its properties, Met can play diverse roles in metal coordination, fine tuning of redox reactions, or supporting protein structures. These roles are strongly influenced by the nature of the surrounding medium. Herein, we describe several common interactions between Met and surrounding aromatic amino acids and how they affect the physical properties of both copper and iron metalloproteins. While the importance of interactions between Met and other groups is established in biological systems, less is known about their roles in redox metalloproteins and our view is that this is an area that is ready for greater attention.
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Affiliation(s)
- Curtis A Gibbs
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
| | | | - Jeffrey J Warren
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
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12
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Putta A, Gairhe S, Yao F, Sun H. Stereo-electronic effect of perfluoropropyl group on solid state molecular packing of isomeric dibenzo [a,c]phenazine derivatives. CrystEngComm 2022. [DOI: 10.1039/d2ce00019a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here the synthesis, characterization, and crystal structures of three perfluoropropylated dibenzo [a,c]phenazine constitutional isomers where the only differences among them are the position of perfluoropropyl substituents. The crystal...
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13
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Clustering of Aromatic Amino Acid Residues around Methionine in Proteins. Biomolecules 2021; 12:biom12010006. [PMID: 35053154 PMCID: PMC8774105 DOI: 10.3390/biom12010006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/14/2021] [Accepted: 12/18/2021] [Indexed: 12/31/2022] Open
Abstract
Short-range, non-covalent interactions between amino acid residues determine protein structures and contribute to protein functions in diverse ways. The interactions of the thioether of methionine with the aromatic rings of tyrosine, tryptophan, and/or phenylalanine has long been discussed and such interactions are favorable on the order of 1–3 kcal mol−1. Here, we carry out a new bioinformatics survey of known protein structures where we assay the propensity of three aromatic residues to localize around the [-CH2-S-CH3] of methionine. We term these groups “3-bridge clusters”. A dataset consisting of 33,819 proteins with less than 90% sequence identity was analyzed and such clusters were found in 4093 structures (or 12% of the non-redundant dataset). All sub-classes of enzymes were represented. A 3D coordinate analysis shows that most aromatic groups localize near the CH2 and CH3 of methionine. Quantum chemical calculations support that the 3-bridge clusters involve a network of interactions that involve the Met-S, Met-CH2, Met-CH3, and the π systems of nearby aromatic amino acid residues. Selected examples of proposed functions of 3-bridge clusters are discussed.
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14
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Li M, Wen J, Huang X, Nie Q, Wu X, Ma W, Nie S, Xie M. Interaction between polysaccharides and toll-like receptor 4: Primary structural role, immune balance perspective, and 3D interaction model hypothesis. Food Chem 2021; 374:131586. [PMID: 34839969 DOI: 10.1016/j.foodchem.2021.131586] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 12/12/2022]
Abstract
Various structural types of polysaccharides are recognized by toll-like receptor 4 (TLR4). However, the mechanism of interaction between the polysaccharides with different structures and TLR4 is unclarified. This review summarized the primary structure of polysaccharides related to TLR4, mainly including molecular weight, monosaccharide composition, glycosidic bonds, functional groups, and branched-chain structure. The optimal primary structure for interacting with TLR4 was obtained by the statistical analysis. Besides, the dual-directional regulation of TLR4 signaling cascade by polysaccharides was also elucidated from an immune balance perspective. Finally, the 3D interaction model of polysaccharides to TLR4-myeloid differentiation factor 2 (MD2) complex was hypothesized according to the LPS-TLR4-MD2 dimerization model and the polysaccharides solution conformation. The essence of polysaccharides binding to TLR4-MD2 complex is a multivalent non-covalent bond interaction. All the arguments summarized in this review are intended to provide some new insights into the interaction between polysaccharides and TLR4.
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Affiliation(s)
- Mingzhi Li
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Jiajia Wen
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Xiaojun Huang
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Qixing Nie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science (Peking University), Ministry of Education, Beijing, China
| | - Xincheng Wu
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Wanning Ma
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
| | - Mingyong Xie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, 235 Nanjing East Road, Nanchang 330047, China.
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15
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Saparbaev E, Yamaletdinov R, Boyarkin OV. Identification of Isomeric Lipids by UV Spectroscopy of Noncovalent Complexes with Aromatic Molecules. Anal Chem 2021; 93:12822-12826. [PMID: 34516082 DOI: 10.1021/acs.analchem.1c02866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The tremendous structural and isomeric diversity of lipids enables a wide range of their functions in nature but makes the identification of these biomolecules challenging. We distinguish and quantify isomeric lipids using cold ion UV fragmentation spectroscopy of their noncovalent complexes with aromatic amino acids and dipeptides. On the basis of structural simulations, specific isomer-sensitive aromatic "sensors" have been preselected for lipids of each studied class. Tyrosine appeared to be a good "sensor" to distinguish steroids and prostaglandins, which are rich in functional groups, while diphenylalanine is a better choice for sensing largely hydrophobic phospholipids. With this sensor, the relative concentrations of two isomeric glycerophospholipids mixed in solution have been determined with 3.3% accuracy, which should degrade only to 3.7% for a 14 s express measurement.
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Affiliation(s)
- Erik Saparbaev
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Ruslan Yamaletdinov
- Nikolaev Institute of Inorganic Chemistry, Novosibirsk 630090, Russian Federation
| | - Oleg V Boyarkin
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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16
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Rival JV, Mymoona P, Lakshmi KM, Pradeep T, Shibu ES. Self-Assembly of Precision Noble Metal Nanoclusters: Hierarchical Structural Complexity, Colloidal Superstructures, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005718. [PMID: 33491918 DOI: 10.1002/smll.202005718] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/07/2020] [Indexed: 06/12/2023]
Abstract
Ligand protected noble metal nanoparticles are excellent building blocks for colloidal self-assembly. Metal nanoparticle self-assembly offers routes for a wide range of multifunctional nanomaterials with enhanced optoelectronic properties. The emergence of atomically precise monolayer thiol-protected noble metal nanoclusters has overcome numerous challenges such as uncontrolled aggregation, polydispersity, and directionalities faced in plasmonic nanoparticle self-assemblies. Because of their well-defined molecular compositions, enhanced stability, and diverse surface functionalities, nanoclusters offer an excellent platform for developing colloidal superstructures via the self-assembly driven by surface ligands and metal cores. More importantly, recent reports have also revealed the hierarchical structural complexity of several nanoclusters. In this review, the formulation and periodic self-assembly of different noble metal nanoclusters are focused upon. Further, self-assembly induced amplification of physicochemical properties, and their potential applications in molecular recognition, sensing, gas storage, device fabrication, bioimaging, therapeutics, and catalysis are discussed. The topics covered in this review are extensively associated with state-of-the-art achievements in the field of precision noble metal nanoclusters.
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Affiliation(s)
- Jose V Rival
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Paloli Mymoona
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Kavalloor Murali Lakshmi
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology (IIT) Madras, Chennai, Tamil Nadu, 600036, India
| | - Edakkattuparambil Sidharth Shibu
- Smart Materials Lab, Electrochemical Power Sources (ECPS) Division, Council of Scientific and Industrial Research (CSIR)-Central Electrochemical Research Institute (CECRI), Karaikudi, Tamil Nadu, 630003, India
- Academy of Scientific and Innovative Research (AcSIR)-CSIR, Ghaziabad, Uttar Pradesh, 201002, India
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17
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Shiryaev AA, Burkhanova TM, Mitoraj MP, Kukulka M, Sagan F, Mahmoudi G, Babashkina MG, Bolte M, Safin DA. Supramolecular structures of Ni II and Cu II with the sterically demanding Schiff base dyes driven by cooperative action of preagostic and other non-covalent interactions. IUCRJ 2021; 8:351-361. [PMID: 33953922 PMCID: PMC8086159 DOI: 10.1107/s2052252521000610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
This work reports on synthesis and extensive experimental and theoretical investigations on photophysical, structural and thermal properties of the NiII and CuII discrete mononuclear homoleptic complexes [Ni(L I,II)2] and [Cu(L I,II)2] fabricated from the Schiff base dyes o-HOC6H4-CH=N-cyclo-C6H11 (HL I) and o-HOC10H6-CH=N-cyclo-C6H11 (HL II), containing the sterically crowding cyclo-hexyl units. The six-membered metallocycles adopt a clearly defined envelope conformation in [Ni(L II)2], while they are much more planar in the structures of [Ni(L I)2] and [Cu(L I,II)2]. It has been demonstrated by in-depth bonding analyses based on the ETS-NOCV and Interacting Quantum Atoms energy-decomposition schemes that application of the bulky substituents, containing several C-H groups, has led to the formation of a set of classical and unintuitive intra- and inter-molecular interactions. All together they are responsible for the high stability of [Ni(L I,II)2] and [Cu(L I,II)2]. More specifically, London dispersion dominated intramolecular C-H⋯O, C-H⋯N and C-H⋯H-C hydrogen bonds are recognized and, importantly, the attractive, chiefly the Coulomb driven, preagostic (not repulsive anagostic) C-H⋯Ni/Cu interactions have been discovered despite their relatively long distances (∼2.8-3.1 Å). All the complexes are further stabilized by the extremely efficient intermolecular C-H⋯π(benzene) and C-H⋯π(chelate) interactions, where both the charge-delocalization and London dispersion constituents appear to be crucial for the crystal packing of the obtained complexes. All the complexes were found to be photoluminescent in CH2Cl2, with [Cu(L II)2] exhibiting the most pronounced emission - the time-dependent density-functional-theory computations revealed that it is mostly caused by metal-to-ligand charge-transfer transitions.
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Affiliation(s)
- Alexey A. Shiryaev
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Street 19, Ekaterinburg, 620002, Russian Federation
| | - Tatyana M. Burkhanova
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Kurgan State University, Sovetskaya Street 63/4, 640020, Russian Federation
| | - Mariusz P. Mitoraj
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Mercedes Kukulka
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Filip Sagan
- Department of Theoretical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków, 30-387, Poland
| | - Ghodrat Mahmoudi
- Department of Chemistry, Faculty of Science, University of Maragheh, PO Box 55181-83111, Maragheh, Iran
| | - Maria G. Babashkina
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve, 1348, Belgium
| | - Michael Bolte
- Institut für Anorganische Chemie, J.-W.-Goethe-Universität, Frankfurt/Main, Germany
| | - Damir A. Safin
- University of Tyumen, Volodarskogo Street 6, Tyumen, 625003, Russian Federation
- Innovation Center for Chemical and Pharmaceutical Technologies, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira Street 19, Ekaterinburg, 620002, Russian Federation
- Kurgan State University, Sovetskaya Street 63/4, 640020, Russian Federation
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18
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He J, Mousavi SH, Li G, Li Z, Mokarizadeh AH, Shang J, May EF, Li GK. The rational design of Li-doped nitrogen adsorbents for natural gas purification. Phys Chem Chem Phys 2021; 23:971-981. [PMID: 33399149 DOI: 10.1039/d0cp04690f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Separation of nitrogen (N2) and methane (CH4) is one of the most challenging and energy-intensive processes in the natural gas industry, due to their close physico-chemical properties. The quest for an effective N2-selective adsorbent has long been the focus of research; however, the results have been sparse. In this work, a first-principle study has been used to construct and investigate Li-doped polycyclic aromatic hydrocarbons (PAHs) for N2 rejection in natural gas purification. We doped lithium on a series of linear/nonlinear PAHs consisting of two to six benzene rings. The adsorption affinity of the Li-doped organic molecular systems toward N2 and CH4 was evaluated by calculating the interaction energy using density functional theory. From the gas adsorption selectivities for different Li-doped PAHs, Li-doped phenanthrene and chrysene showed the highest N2 over CH4 equilibrium selectivities, with values of 119.7 and 80.8, respectively. It was found that the Li atom enabled the π bond of the aromatic substrate to interfere with the N2 lowest unoccupied molecular orbital, resulting in strong physisorption of N2. These results indicate the high potential of Li-doped phenanthrene and chrysene for N2 removal from natural gas.
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Affiliation(s)
- Jialuo He
- MOE Key Laboratory of Theoretical Chemistry of Environment, School of Chemistry, South China Normal University, Guangzhou 510006, P. R. China and Centre for Energy, Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia.
| | - Seyed Hesam Mousavi
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Guoliang Li
- MOE Key Laboratory of Theoretical Chemistry of Environment, School of Chemistry, South China Normal University, Guangzhou 510006, P. R. China
| | - Zhikao Li
- Centre for Energy, Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia.
| | | | - Jin Shang
- School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
| | - Eric F May
- Centre for Energy, Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia.
| | - Gang Kevin Li
- Centre for Energy, Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia. and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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19
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Triolo A, Lo Celso F, Plechkova NV, Leonelli F, Gärtner S, Keeble DS, Russina O. Structure of anisole derivatives by total neutron and X-ray scattering: Evidences of weak C H⋯O and C H⋯π interactions in the liquid state. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Sarkar S, Ramanathan N, Sruthi P, Sundararajan K. Computational and experimental evidence of N–H…π and cooperative πN…π∗ interactions in pyrrole…benzene and pyrrole…ethylene heterodimers at low temperatures. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Saparbaev E, Aladinskaia V, Yamaletdinov R, Pereverzev AY, Boyarkin OV. Revealing Single-Bond Anomeric Selectivity in Carbohydrate-Protein Interactions. J Phys Chem Lett 2020; 11:3327-3331. [PMID: 32279507 DOI: 10.1021/acs.jpclett.0c00871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The noncovalent binding of proteins to glycans is amazingly selective to the isoforms of carbohydrates, including α/β anomers that coexist in solution. We isolate in the gas phase and study at the atomic level the simplest model system: noncovalent complexes of monosaccharide α/β-GalNAc and protonated aromatic molecule tyramine. IR/UV cold ion spectroscopy and quantum chemistry calculations jointly solve the structures of the two complexes. Although the onsets of the measured UV absorptions of the complexes differ significantly, the networks of H bonds in both complexes appear identical and do not include the anomeric hydroxyl. The detailed analysis reveals that, through inductive polarization, the α- to β-reorientation of this group nevertheless reduces the length of one remote short intermolecular H-bond by 0.03 Å. Although small, this change substantially strengthens the bond, thus contributing to the anomeric selectivity of the binding.
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Affiliation(s)
- Erik Saparbaev
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, Station-6, 1015 Lausanne, Switzerland
| | - Viktoriia Aladinskaia
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, Station-6, 1015 Lausanne, Switzerland
| | - Ruslan Yamaletdinov
- Nikolaev Institute of Inorganic Chemistry, Novosibirsk, 630090, Russian Federation
| | - Aleksandr Y Pereverzev
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, Station-6, 1015 Lausanne, Switzerland
| | - Oleg V Boyarkin
- Laboratoire de Chimie Physique Moléculaire, École Polytechnique Fédérale de Lausanne, Station-6, 1015 Lausanne, Switzerland
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22
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Schaub TA, Prantl EA, Kohn J, Bursch M, Marshall CR, Leonhardt EJ, Lovell TC, Zakharov LN, Brozek CK, Waldvogel SR, Grimme S, Jasti R. Exploration of the Solid-State Sorption Properties of Shape-Persistent Macrocyclic Nanocarbons as Bulk Materials and Small Aggregates. J Am Chem Soc 2020; 142:8763-8775. [DOI: 10.1021/jacs.0c01117] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tobias A. Schaub
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
- Institute of Organic Chemistry, Ruprecht-Karls University of Heidelberg, Heidelberg 69120, Germany
| | - Ephraim A. Prantl
- Department of Organic Chemistry, Johannes Gutenberg-University Mainz, Mainz 55128, Germany
| | - Julia Kohn
- Mulliken Center for Theoretical Chemistry, University Bonn, Bonn 53115, Germany
| | - Markus Bursch
- Mulliken Center for Theoretical Chemistry, University Bonn, Bonn 53115, Germany
| | - Checkers R. Marshall
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
| | - Erik J. Leonhardt
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
| | - Terri C. Lovell
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
| | - Lev N. Zakharov
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Carl K. Brozek
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
| | - Siegfried R. Waldvogel
- Department of Organic Chemistry, Johannes Gutenberg-University Mainz, Mainz 55128, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, University Bonn, Bonn 53115, Germany
| | - Ramesh Jasti
- Department of Chemistry & Biochemistry and Material Science Institute, University of Oregon, Eugene, Oregon 97403, United States
- Knight Campus for Accelerating Scientific Impact, University of Oregon, Eugene, Oregon 97403, United States
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23
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Bagheri S, Masoodi HR. The influence of CH … π interaction on coupling constants across N … H–F hydrogen bond in a substituted T-shaped configuration: a theoretical study. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1580393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sotoodeh Bagheri
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Hamid Reza Masoodi
- Department of Chemistry, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
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24
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Interfacial interaction and steric repulsion in polymer-assisted liquid exfoliation to produce high-quality graphene. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00928-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Synthesis and characterization of three new Cu(II) paddle-wheel compounds with 1,3-benzodioxole-5-carboxylic acid. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Bulman Page PC, Almutairi SM, Chan Y, Stephenson GR, Gama Y, Goodyear RL, Douteau A, Allin SM, Jones GA. Asymmetric Oxidation of Enol Derivatives to α-Alkoxy Carbonyls Using Iminium Salt Catalysts: A Synthetic and Computational Study. J Org Chem 2019; 84:544-559. [PMID: 30548068 DOI: 10.1021/acs.joc.8b02354] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report herein the first examples of asymmetric oxidation of enol ether and ester substrates using iminium salt organocatalysis, affording moderate to excellent enantioselectivities of up to 98% ee for tetralone-derived substrates in the α-hydroxyketone products. A comprehensive density functional theory study was undertaken to interpret the competing diastereoisomeric transition states in this example in order to identify the origins of enantioselectivity. The calculations, performed at the B3LYP/6-31G(D) level of theory, gave good agreement with the experimental results, in terms of the magnitude of the effects under the specified reaction conditions, and in terms of the preferential formation of the ( R)-enantiomer. Just one of the 30 characterized transition states dominates the enantioselectivity, which is attributed to the adoption of an orientation relative to stereochemical features of the chiral controlling element that combines a CH-π interaction between a CH2 group in the substrate and one of the aromatic rings of the biaryl section of the chiral auxiliary with a good alignment of the acetoxy group with the other biaryl ring, and places the smallest substituent on the alkene (a hydrogen atom) in the most sterically hindered position.
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Affiliation(s)
- Philip C Bulman Page
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Saud M Almutairi
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Yohan Chan
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - G Richard Stephenson
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Yannick Gama
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Ross L Goodyear
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Alice Douteau
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
| | - Steven M Allin
- Department of Chemistry and Forensics , Nottingham Trent University , Clifton , Nottingham NG11 8NS , U.K
| | - Garth A Jones
- School of Chemistry , University of East Anglia , Norwich Research Park , Norwich , Norfolk NR4 7TJ , U.K
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27
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Chakraborty M, Ahmed T, Dhale RS, Majhi D, Sarkar M. Understanding the Microscopic Behavior of Binary Mixtures of Ionic Liquids through Various Spectroscopic Techniques. J Phys Chem B 2018; 122:12114-12130. [DOI: 10.1021/acs.jpcb.8b09699] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manjari Chakraborty
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Tasnim Ahmed
- Department of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Ranu Satish Dhale
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Debashis Majhi
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
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28
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Wang RS, Feng J, Lei YZ, Chen DM, Lian ML. New 3D Supramolecular Ag(I) Coordination Polymer Crystal Containing 2-Quinaldic Acid Radical Biological Ligand: Crystal Structure and Anticancer Activity. CRYSTAL RESEARCH AND TECHNOLOGY 2018. [DOI: 10.1002/crat.201800065] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ren-Shu Wang
- School of Chemistry and Materials Engineering; Liupanshui Normal University; Liupanshui Guizhou 553004 P. R. China
| | - Jing Feng
- School of Chemistry and Materials Engineering; Liupanshui Normal University; Liupanshui Guizhou 553004 P. R. China
| | - Yi-Zhu Lei
- School of Chemistry and Materials Engineering; Liupanshui Normal University; Liupanshui Guizhou 553004 P. R. China
| | - Ding-Mei Chen
- School of Chemistry and Materials Engineering; Liupanshui Normal University; Liupanshui Guizhou 553004 P. R. China
| | - Ming-Lei Lian
- School of Chemistry and Materials Engineering; Liupanshui Normal University; Liupanshui Guizhou 553004 P. R. China
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29
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Mishra BK, Venkatnarayan R. Substituents’ influence on the C–H···π interaction in the T-shaped benzene dimer. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2249-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Wang H, Liu F, Dong T, Du L, Zhang D, Gao J. Charge-Transfer Knowledge Graph among Amino Acids Derived from High-Throughput Electronic Structure Calculations for Protein Database. ACS OMEGA 2018; 3:4094-4104. [PMID: 31458645 PMCID: PMC6641752 DOI: 10.1021/acsomega.8b00336] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 03/30/2018] [Indexed: 05/25/2023]
Abstract
The charge-transfer coupling is an important component in tight-binding methods. Because of the highly complex chemical structure of biomolecules, the anisotropic feature of charge-transfer couplings in realistic proteins cannot be ignored. In this work, we have performed the first large-scale quantitative assessment of charge-transfer preference by calculating the charge-transfer couplings in all 20 × 20 possible amino acid side-chain combinations, which are extracted from available high-quality structures of thousands of protein complexes. The charge-transfer database quantitatively shows distinct features of charge-transfer couplings among millions of amino acid side-chain combinations. The overall distribution of charge-transfer couplings reveals that only one average or representative structure cannot be regarded as the typical charge-transfer preference in realistic proteins. This work provides us an alternative route to comprehensively understand the charge-transfer couplings for the overall distribution of realistic proteins in the foreseen big data scenario.
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Affiliation(s)
- Hongwei Wang
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Fang Liu
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Tiange Dong
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Likai Du
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Dongju Zhang
- Institute
of Theoretical Chemistry, Shandong University, Jinan 250100, P. R. China
| | - Jun Gao
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
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31
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Østrøm I, Ortolan AO, Schneider FSS, Caramori GF, Parreira RLT. Quest for Insight into Ultrashort C–H···π Proximities in Molecular “Iron Maidens”. J Org Chem 2018; 83:5114-5122. [DOI: 10.1021/acs.joc.8b00461] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ina Østrøm
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Alexandre O. Ortolan
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Felipe S. S. Schneider
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Giovanni F. Caramori
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CP 476, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Renato L. T. Parreira
- Núcleo de Pesquisas em Ciências Exatas e Tecnológicas, Universidade de Franca, 14404-600 Franca, São Paulo, Brazil
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32
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Kobayashi H, Fukuoka A. Development of Solid Catalyst–Solid Substrate Reactions for Efficient Utilization of Biomass. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170263] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hirokazu Kobayashi
- Institute for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021
| | - Atsushi Fukuoka
- Institute for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021
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33
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Korenaga T, Sasaki R, Takemoto T, Yasuda T, Watanabe M. Computationally-Led Ligand Modification using Interplay between Theory and Experiments: Highly Active Chiral Rhodium Catalyst Controlled by Electronic Effects and CH-π Interactions. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701191] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Toshinobu Korenaga
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering; Iwate University; 4-3-5 Ueda Morioka, Iwate 020-8551 Japan
| | - Ryo Sasaki
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering; Iwate University; 4-3-5 Ueda Morioka, Iwate 020-8551 Japan
| | - Toshihide Takemoto
- Central Research Laboratory, Technology and Development Division; Kanto Chemical Co., Inc., Soka; Saitama 340-0003 Japan
| | - Toshihisa Yasuda
- Central Research Laboratory, Technology and Development Division; Kanto Chemical Co., Inc., Soka; Saitama 340-0003 Japan
| | - Masahito Watanabe
- Central Research Laboratory, Technology and Development Division; Kanto Chemical Co., Inc., Soka; Saitama 340-0003 Japan
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34
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Li G, Huang L, Yi X, Peng YK, Tsang SCE, Zheng A. A nonpolar solvent effect by CH/π interaction inside zeolites: characterization, mechanism and concept. Chem Commun (Camb) 2018; 54:13435-13438. [DOI: 10.1039/c8cc08310j] [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
The acidity enhancement induced by the nonpolar solvent effect of naphthalene inside zeolites was unambiguously identified.
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Affiliation(s)
- Guangchao Li
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Ling Huang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Xianfeng Yi
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Yung-Kang Peng
- Department of Chemistry
- City University of Hong Kong
- Kowloon
- P. R. China
| | - Shik Chi Edman Tsang
- The Wolfson Catalysis Centre
- Department of Chemistry
- University of Oxford
- Oxford OX1 3QR
- UK
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
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35
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Roy S, Drew MGB, Frontera A, Chattopadhyay S. Suitable Interplay between Various Conventional and Unconventional Non-Covalent Interactions in Forming Self-Assembled Supramolecules of Two Ni(II)/Zn(II) Schiff Base Complexes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700853] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sourav Roy
- Department of Chemistry, Inorganic Section; Jadavpur University; Kolkata - 700032 India
| | - Michael. G. B. Drew
- School of Chemistry; The University of Reading; Whiteknights, Reading RG6 6AD 224 United Kingdom
| | - Antonio Frontera
- Departamento de Química; Universitat de les Illes Balears, Crta. deValldemossa km 7.5; 07122 Palma, Baleares Spain
| | - Shouvik Chattopadhyay
- Department of Chemistry, Inorganic Section; Jadavpur University; Kolkata - 700032 India
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36
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Zhang Y, Wang L, Zeng M, Kurmoo M. Fabrication of a capillary column coated with the four-fold-interpenetrated MOF Cd(D-Cam)(tmdpy) for gas chromatographic separation. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.04.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Zheng DD, Wang L, Yang T, Zhang Y, Wang Q, Kurmoo M, Zeng MH. A Porous Metal–Organic Framework [Zn2(bdc)(l-lac)] as a Coating Material for Capillary Columns of Gas Chromatography. Inorg Chem 2017; 56:11043-11049. [DOI: 10.1021/acs.inorgchem.7b01413] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dan-Dan Zheng
- College of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, P. R. China
| | - Li Wang
- College of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, P. R. China
| | - Tao Yang
- Hubei Collaborative
Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education
Key Laboratory for the Synthesis and Application of Organic Functional
Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Yan Zhang
- College of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, P. R. China
| | - Qian Wang
- College of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, P. R. China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg, CNRS-UMR
7177, Université de Strasbourg, 4 rue Blaise Pascal, 67070 Strasbourg, France
| | - Ming-Hua Zeng
- Hubei Collaborative
Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education
Key Laboratory for the Synthesis and Application of Organic Functional
Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
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38
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Ha S, Lee M, Seo HO, Song SG, Kim KS, Park CH, Kim IH, Kim YD, Song C. Structural Effect of Thioureas on the Detection of Chemical Warfare Agent Simulants. ACS Sens 2017; 2:1146-1151. [PMID: 28776366 DOI: 10.1021/acssensors.7b00256] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The ability to rapidly detect, identify, and monitor chemical warfare agents (CWAs) is imperative for both military and civilian defense. Since most CWAs and their simulants have an organophosphonate group, which is a hydrogen (H)-bond acceptor, many H-bond donors have been developed to effectively bind to the organophosphonate group. Although thioureas have been actively studied as an organocatalyst, they are relatively less investigated in CWA detection. In addition, there is a lack of studies on the structure-property relationship for gas phase detection. In this study, we synthesized various thioureas of different chemical structures, and tested them for sensing dimethylmethylphosphonate (DMMP), a CWA simulant. Molecular interaction between DMMP and thiourea was measured by 1H NMR titration and supported by density functional theory (DFT) calculations. Strong H-bond donor ability of thiourea may cause self-aggregation, and CH-π interaction can play an important role in the DMMP detection. Gas-phase adsorption of DMMP was also measured using a quartz crystal microbalance (QCM) and analyzed using the simple Langmuir isotherm, showing the importance of structure-induced morphology of thioureas on the surface.
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Affiliation(s)
- Seonggyun Ha
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Minhe Lee
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Hyun Ook Seo
- Department
of Chemistry and Energy Engineering, Sangmyung University, 20, Hongjimun
2-gil, Jongno-gu, Seoul 03016, Republic of Korea
| | - Sun Gu Song
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Kyung-su Kim
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Chan Heum Park
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Il Hee Kim
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Young Dok Kim
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
| | - Changsik Song
- Department
of Chemistry, Sungkyunkwan University, 2066, Seobu-ro,
Jangan-gu, Suwon-si, Gyeonggi-do, Seoul 16419, Republic of Korea
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39
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Zheng DD, Zhang Y, Wang L, Kurmoo M, Zeng MH. A rod-spacer mixed ligands MOF [Mn 3 (HCOO) 2 ( D -cam) 2 (DMF) 2 ] n as coating material for gas chromatography capillary column. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Rashid A, Vakurov A, Mohamadi S, Sanver D, Nelson A. Substituents modulate biphenyl penetration into lipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:712-721. [DOI: 10.1016/j.bbamem.2017.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/29/2016] [Accepted: 01/19/2017] [Indexed: 10/20/2022]
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41
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Lee IM, Tu IF, Yang FL, Ko TP, Liao JH, Lin NT, Wu CY, Ren CT, Wang AHJ, Chang CM, Huang KF, Wu SH. Structural basis for fragmenting the exopolysaccharide of Acinetobacter baumannii by bacteriophage ΦAB6 tailspike protein. Sci Rep 2017; 7:42711. [PMID: 28209973 PMCID: PMC5314372 DOI: 10.1038/srep42711] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 01/12/2017] [Indexed: 12/24/2022] Open
Abstract
With an increase in antibiotic-resistant strains, the nosocomial pathogen Acinetobacter baumannii has become a serious threat to global health. Glycoconjugate vaccines containing fragments of bacterial exopolysaccharide (EPS) are an emerging therapeutic to combat bacterial infection. Herein, we characterize the bacteriophage ΦAB6 tailspike protein (TSP), which specifically hydrolyzed the EPS of A. baumannii strain 54149 (Ab-54149). Ab-54149 EPS exhibited the same chemical structure as two antibiotic-resistant A. baumannii strains. The ΦAB6 TSP-digested products comprised oligosaccharides of two repeat units, typically with stoichiometric pseudaminic acid (Pse). The 1.48-1.89-Å resolution crystal structures of an N-terminally-truncated ΦAB6 TSP and its complexes with the semi-hydrolyzed products revealed a trimeric β-helix architecture that bears intersubunit carbohydrate-binding grooves, with some features unusual to the TSP family. The structures suggest that Pse in the substrate is an important recognition site for ΦAB6 TSP. A region in the carbohydrate-binding groove is identified as the determinant of product specificity. The structures also elucidated a retaining mechanism, for which the catalytic residues were verified by site-directed mutagenesis. Our findings provide a structural basis for engineering the enzyme to produce desired oligosaccharides, which is useful for the development of glycoconjugate vaccines against A. baumannii infection.
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Affiliation(s)
- I-Ming Lee
- Institute of Biochemical Sciences, National Taiwan University, Taipei 106, Taiwan.,Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - I-Fan Tu
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Feng-Ling Yang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Tzu-Ping Ko
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan.,Core Facilities for Protein Structural Analysis (CFPSA), Academia Sinica, Taipei 115, Taiwan
| | - Jiahn-Haur Liao
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Nien-Tsung Lin
- Master program in Microbiology and Immunology, Tzu Chi University, Hualien 970, Taiwan
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Chien-Tai Ren
- Genomics Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Andrew H-J Wang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan.,Core Facilities for Protein Structural Analysis (CFPSA), Academia Sinica, Taipei 115, Taiwan
| | - Ching-Ming Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Kai-Fa Huang
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan.,Core Facilities for Protein Structural Analysis (CFPSA), Academia Sinica, Taipei 115, Taiwan
| | - Shih-Hsiung Wu
- Institute of Biochemical Sciences, National Taiwan University, Taipei 106, Taiwan.,Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan.,Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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42
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Yuan K, Zhao RS, Zheng JJ, Zheng H, Nagase S, Zhao SD, Liu YZ, Zhao X. Van Der Waals heterogeneous layer-layer carbon nanostructures involving π···H-C-C-H···π···H-C-C-H stacking based on graphene and graphane sheets. J Comput Chem 2017; 38:730-739. [DOI: 10.1002/jcc.24743] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/05/2017] [Accepted: 01/09/2017] [Indexed: 01/18/2023]
Affiliation(s)
- Kun Yuan
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
- College of Chemical engineering & Technology; Department of Chemistry, Tianshui Normal University; Tianshui 741001 China
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
| | - Rui-Sheng Zhao
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
| | - Jia-Jia Zheng
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
| | - Hong Zheng
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
| | - Shigeru Nagase
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
| | - Sheng-Dun Zhao
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
| | - Yan-Zhi Liu
- College of Chemical engineering & Technology; Department of Chemistry, Tianshui Normal University; Tianshui 741001 China
| | - Xiang Zhao
- Institute for Chemical Physics & Department of Chemistry; School of Science, State Key Laboratory of Electrical Insulation and Power Equipment, School of Mechanical Engineering, Xi'an Jiaotong University; Xi'an 710049 China
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43
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Liu Y, Ma S, Xu B, Tian W. Construction and function of a highly efficient supramolecular luminescent system. Faraday Discuss 2017; 196:219-229. [DOI: 10.1039/c6fd00166a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aggregation-induced emission (AIE) provides a new way of achieving highly efficient luminescent materials. In this contribution, the self-assembly behavior, molecular stacking structure and photophysical properties of two polymorphs of a supramolecular co-crystal (C1 and C2) are investigated. The block-like crystal C1, packed in segregated stacking with strong π–π interactions between the H and G molecules, shows weak green emission with a low efficiency (ΦF) of 2%. In comparison, the needle-like crystal C2, packed in segregated stacking with no obviously strong intermolecular interactions, shows bright yellow emission. More importantly, C1 exhibits mechanochromic behavior.
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Affiliation(s)
- Yingjie Liu
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- China
| | - Suqian Ma
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- China
| | - Bin Xu
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- China
| | - Wenjing Tian
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130012
- China
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44
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Catalytic Conversion of Structural Carbohydrates and Lignin to Chemicals. ADVANCES IN CATALYSIS 2017. [DOI: 10.1016/bs.acat.2017.09.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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45
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Purkayastha A, Debnath D, Roy S, Bauzá A, Choudhury R, Frontera A, Misra TK. Synthesis and Investigation of Solid‐ and Solution‐State Structures of Nickel(II) Complexes with 1,3‐Dimethyl‐5‐(arylazo)‐6‐aminouracil. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Atanu Purkayastha
- Department of Chemistry National Institute of Technology (NIT) Agartala 799046 Tripura India
| | - Diptanu Debnath
- Department of Chemistry National Institute of Technology (NIT) Agartala 799046 Tripura India
| | - Subhadip Roy
- Department of Chemistry National Institute of Technology (NIT) Agartala 799046 Tripura India
| | - Antonio Bauzá
- Departament de Quimica Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
| | - Rupasree Choudhury
- Department of Chemistry National Institute of Technology (NIT) Agartala 799046 Tripura India
| | - Antonio Frontera
- Departament de Quimica Universitat de les Illes Balears Crta. de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares) Spain
| | - Tarun Kumar Misra
- Department of Chemistry National Institute of Technology (NIT) Agartala 799046 Tripura India
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46
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Wang PH, Ghoshal S, Gulgunje P, Verghese N, Kumar S. Polypropylene nanocomposites with polymer coated multiwall carbon nanotubes. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.07.070] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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47
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Lyu L, Niu D, Xie H, Cao N, Zhang H, Zhang Y, Liu P, Gao Y. Orientation-dependent energy level alignment and film growth of 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) on HOPG. J Chem Phys 2016; 144:034701. [PMID: 26801037 DOI: 10.1063/1.4939839] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Combining ultraviolet photoemission spectroscopy, X-ray photoemission spectroscopy, atomic force microscopy, and X-ray diffraction measurements, we performed a systematic investigation on the correlation of energy level alignment, film growth, and molecular orientation of 2,7-diocty[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) on highly oriented pyrolytic graphite. The molecules lie down in the first layer and then stand up from the second layer. The ionization potential shows a sharp decrease from the lying down region to the standing up region. When C8-BTBT molecules start standing up, unconventional energy level band-bending-like shifts are observed as the film thickness increases. These shifts are ascribed to gradual decreasing of the molecular tilt angle about the substrate normal with the increasing film thickness.
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Affiliation(s)
- Lu Lyu
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Dongmei Niu
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Haipeng Xie
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Ningtong Cao
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Hong Zhang
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Yuhe Zhang
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Peng Liu
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
| | - Yongli Gao
- Institute of Super-Microstructure and Ultrafast Process in Advanced Materials, School of Physics and Electronics, Central South University, No. 605 Lushan South Road, Changsha, Hunan 410012, People's Republic of China
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48
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Berg L, Mishra BK, Andersson CD, Ekström F, Linusson A. The Nature of Activated Non-classical Hydrogen Bonds: A Case Study on Acetylcholinesterase-Ligand Complexes. Chemistry 2016; 22:2672-81. [DOI: 10.1002/chem.201503973] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Lotta Berg
- Department of Chemistry; Umeå University; 901 87 Umeå Sweden
| | | | | | - Fredrik Ekström
- CBRN Defense and Security; Swedish Defense Research Agency; 906 21 Umeå Sweden
| | - Anna Linusson
- Department of Chemistry; Umeå University; 901 87 Umeå Sweden
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49
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Akmeemana AG, Kang JM, Dorris RE, Nelson RD, Anderton AM, Peebles RA, Peebles SA, Seifert NA, Pate BH. Effect of aromatic ring fluorination on CH⋯π interactions: microwave spectrum and structure of the 1,2-difluorobenzene⋯acetylene dimer. Phys Chem Chem Phys 2016; 18:24290-8. [DOI: 10.1039/c6cp04737h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The H⋯π distance increases ino-C6H4F2⋯HCCH, compared to C6H5F⋯HCCH or C6H6⋯HCCH, consistent with weaker interactions with increased ring fluorination.
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Affiliation(s)
| | | | - Rachel E. Dorris
- Department of Chemistry, Eastern Illinois University
- Charleston
- USA
| | | | | | | | - Sean A. Peebles
- Department of Chemistry, Eastern Illinois University
- Charleston
- USA
| | - Nathan A. Seifert
- Department of Chemistry and Biochemistry
- University of Virginia
- Charlottesville
- USA
| | - Brooks H. Pate
- Department of Chemistry and Biochemistry
- University of Virginia
- Charlottesville
- USA
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50
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Postils V, Company A, Solà M, Costas M, Luis JM. Computational Insight into the Mechanism of Alkane Hydroxylation by Non-heme Fe(PyTACN) Iron Complexes. Effects of the Substrate and Solvent. Inorg Chem 2015; 54:8223-36. [DOI: 10.1021/acs.inorgchem.5b00583] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Verònica Postils
- Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain
| | - Anna Company
- Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain
| | - Miquel Solà
- Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain
| | - Miquel Costas
- Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain
| | - Josep M. Luis
- Institut de Química
Computacional i Catàlisi (IQCC) and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain
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