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Boychuk BTA, Wetmore SD. Assessment of Density Functional Theory Methods for the Structural Prediction of Transition and Post-Transition Metal-Nucleic Acid Complexes. J Chem Theory Comput 2023. [PMID: 37399186 DOI: 10.1021/acs.jctc.3c00127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Understanding the structure of metal-nucleic acid systems is important for many applications such as the design of new pharmaceuticals, metal detection platforms, and nanomaterials. Herein, we explore the ability of 20 density functional theory (DFT) functionals to reproduce the crystal structure geometry of transition and post-transition metal-nucleic acid complexes identified in the Protein Data Bank and Cambridge Structural Database. The environmental extremes of the gas phase and implicit water were considered, and analysis focused on the global and inner coordination geometry, including the coordination distances. Although gas-phase calculations were unable to describe the structure of 12 out of the 53 complexes in our test set regardless of the DFT functional considered, accounting for the broader environment through implicit solvation or constraining the model truncation points to crystallographic coordinates generally afforded agreement with the experimental structure, suggesting that functional performance for these systems is likely due to the models rather than the methods. For the remaining 41 complexes, our results show that the reliability of functionals depends on the metal identity, with the magnitude of error varying across the periodic table. Furthermore, minimal changes in the geometries of these metal-nucleic acid complexes occur upon use of the Stuttgart-Dresden effective core potential and/or inclusion of an implicit water environment. The overall top three performing functionals are ωB97X-V, ωB97X-D3(BJ), and MN15, which reliably describe the structure of a broad range of metal-nucleic acid systems. Other suitable functionals include MN15-L, which is a cheaper alternative to MN15, and PBEh-3c, which is commonly used in QM/MM calculations of biomolecules. In fact, these five methods were the only functionals tested to reproduce the coordination sphere of Cu2+-containing complexes. For metal-nucleic acid systems that do not contain Cu2+, ωB97X and ωB97X-D are also suitable choices. These top-performing methods can be utilized in future investigations of diverse metal-nucleic acid complexes of relevance to biology and material science.
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Affiliation(s)
- Briana T A Boychuk
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, AB T1K 3M4, Canada
| | - Stacey D Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive West, Lethbridge, AB T1K 3M4, Canada
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2
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Ouyang X, Wu Y, Gao Y, Li L, Li L, Liu T, Jing X, Fu Y, Luo J, Xie G, Jia S, Li M, Li Q, Fan C, Liu X. Micron-Scale Fabrication of Ultrathin Amorphous Copper Nanosheets Templated by DNA Scaffolds. J Am Chem Soc 2023; 145:4553-4563. [PMID: 36802526 DOI: 10.1021/jacs.2c12009] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Two-dimensional (2D) amorphous materials could outperform their crystalline counterparts toward various applications because they have more defects and reactive sites and thus could exhibit a unique surface chemical state and provide an advanced electron/ion transport path. Nevertheless, it is challenging to fabricate ultrathin and large-sized 2D amorphous metallic nanomaterials in a mild and controllable manner due to the strong metallic bonds between metal atoms. Here, we reported a simple yet fast (10 min) DNA nanosheet (DNS)-templated method to synthesize micron-scale amorphous copper nanosheets (CuNSs) with a thickness of 1.9 ± 0.4 nm in aqueous solution at room temperature. We demonstrated the amorphous feature of the DNS/CuNSs by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Interestingly, we found that they could transform to crystalline forms under continuous electron beam irradiation. Of note, the amorphous DNS/CuNSs exhibited much stronger photoemission (∼62-fold) and photostability than dsDNA-templated discrete Cu nanoclusters due to the elevation of both the conduction band (CB) and valence band (VB). Such ultrathin amorphous DNS/CuNSs hold great potential for practical applications in biosensing, nanodevices, and photodevices.
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Affiliation(s)
- Xiangyuan Ouyang
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Yongli Wu
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Yanjing Gao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lingyun Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Le Li
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Ting Liu
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Xinxin Jing
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Fu
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Jing Luo
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Gang Xie
- Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, China
| | - Sisi Jia
- Zhangjiang Laboratory, 100 Haike Road, Shanghai 201210, China
| | - Mingqiang Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qian Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
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3
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Stochastic dynamic quantitative and 3D structural matrix assisted laser desorption/ionization mass spectrometric analyses of mixture of nucleosides. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Szatylowicz H, Stasyuk OA, Solà M, Krygowski TM. Aromaticity of nucleic acid bases. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2021. [DOI: 10.1002/wcms.1509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Halina Szatylowicz
- Faculty of Chemistry Warsaw University of Technology, Noakowskiego 3, 00‐664 Warsaw Poland
| | - Olga A. Stasyuk
- Institute of Computational Chemistry and Catalysis and Department of Chemistry, University of Girona, C/ Maria Aurélia Capmany 69, 17003 Girona Spain
| | - Miquel Solà
- Institute of Computational Chemistry and Catalysis and Department of Chemistry, University of Girona, C/ Maria Aurélia Capmany 69, 17003 Girona Spain
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5
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Üngördü A, Tezer N. Electronic Properties of Artificial Metal‐DNA Base Pair Complexes Formed from Hydroxypyridone Base. ChemistrySelect 2020. [DOI: 10.1002/slct.201904232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ayhan Üngördü
- Department of ChemistryFaculty of ScienceSivas Cumhuriyet University 58140 Sivas Turkey
| | - Nurten Tezer
- Department of ChemistryFaculty of ScienceSivas Cumhuriyet University 58140 Sivas Turkey
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6
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Safaei Z, Shayesteh A. Ab Initio Calculations on Sequential Reactions of Nitric Oxide with Titanium Ions in the Gas Phase. J Phys Chem A 2020; 124:5194-5203. [PMID: 32466646 DOI: 10.1021/acs.jpca.0c03461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Potential energy surfaces of sequential reactions of NO with Ti+ ion in the gas phase were investigated for various spin multiplicities using the coupled-cluster and the multireference configuration interaction methods. The mechanisms of Ti+ reactions with up to four NO molecules were fully determined, with all transition-state structures being found by relaxed surface scans and confirmed by the intrinsic reaction coordinate (IRC) calculations. The reaction mechanisms are consistent with the products observed in mass spectrometric experiments. In the first reaction, the nitrogen atom and TiO+ ion are produced with intersystem crossings for singlet and triplet states. The OTi(NO)+ complex is formed in the second reaction, and the third reaction involves N-N bond formation, yielding the N2O molecule and TiO2+ ion. The fourth NO molecule reacts with the TiO2+ ion in an electron-transfer reaction to produce final products TiO2 and NO+. The coupled-cluster relative energies were used as a reference to evaluate the overall performance of common density functionals for this particular reaction.
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Affiliation(s)
- Zahra Safaei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Shayesteh
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Density functional theory studies on cytosine analogues for inducing double-proton transfer with guanine. Sci Rep 2020; 10:9671. [PMID: 32541653 PMCID: PMC7295794 DOI: 10.1038/s41598-020-66530-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/14/2020] [Indexed: 01/29/2023] Open
Abstract
To induce double-proton transfer (DPT) with guanine in a biological environment, 12 cytosine analogues (Ca) were formed by atomic substitution. The DPT reactions in the Watson-Crick cytosine-guanine model complex (Ca0G) and 12 modified cytosine-guanine complexes (Ca1-12G) were investigated using density functional theory methods at the M06-2X/def2svp level. The intramolecular proton transfers within the analogues are not facile due to high energy barriers. The hydrogen bond lengths of the Ca1-12G complexes are shorter than those in the Ca0G complex, which are conducive to DPT reactions. The DPT energy barriers of Ca1-12G complexes are also lower than that of the Ca0G complex, in particular, the barriers in the Ca7G and Ca11G complexes were reduced to -1.33 and -2.02 kcal/mol, respectively, indicating they are significantly more prone to DPT reactions. The DPT equilibrium constants of Ca1-12G complexes range from 1.60 × 100 to 1.28 × 107, among which the equilibrium constants of Ca7G and Ca11G are over 1.0 × 105, so their DPT reactions may be adequate. The results demonstrate that those cytosine analogues, especially Ca7 and Ca11, are capable of inducing DPT with guanine, and then the guanine tautomer will form mismatches with thymine during DNA replication, which may provide new strategies for gene therapy.
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8
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Peng D, Liang RP, Qiu JD, Liu J. Robust Colorimetric Detection of Cu2+ by Excessed Nucleotide Coordinated Nanozymes. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00106-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Zhang X, Liu Q, Jin Y, Li B. Facile and Sensitive Fluorescence Assay of DNA Polymerase Activity Using Cu2+
and Ascorbate as Signal Developers. ChemistrySelect 2019. [DOI: 10.1002/slct.201803850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xingxing Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Qiang Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Yan Jin
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Baoxin Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry & Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
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10
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Han Y, Li D. The prediction of intermolecular proton-transfer of guanine-cytosine base pair under the influence of fragments from decomposed MOFs. J Mol Model 2019; 25:40. [PMID: 30666421 DOI: 10.1007/s00894-019-3926-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/03/2019] [Indexed: 10/27/2022]
Abstract
Metal-organic frameworks (MOFs) can be decomposed into various fragments, including negative/positive charges, Zn+ or Cu2+ when used as drug delivery materials. To evaluate the safety of MOFs, different mechanisms of intermolecular proton-transfer in guanine-cytosine (GC) base pair under the influence of such fragments were investigated by density functional theory methods. In a vacuum, calculation results show that an excess electron assists proton transfer in the anionic GC radical, and a hole assists proton transfer in the cationic GC radical with small energy barriers. The mechanism for Zn+-GC transfer is that the located hole assists proton transfer from G to C. All proton-transfers of Cu2+-GC become spontaneous with stable proton-transferred structures, and the driving force is the Cu2+ due to its electrostatic and oxidative effects. However, in a micro-water environment, the average energy barrier of all proton-transfer processes increases by 2.8 kcal mol-1 because of the redistribution of charges. Water molecules play a very important role in buffering, and the influence of fragments on intermolecular proton-transfer processes of GC is reduced.
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Affiliation(s)
- Ying Han
- National Engineering Research Center for Colloidal Materials and School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, People's Republic of China
| | - Dejie Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, People's Republic of China.
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11
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Valadbeigi Y. Effect of alkali metal cations interactions on the intramolecular proton transfers in [cytosine-X]+ adduct ions, X = H, Li, Na, K. MAIN GROUP CHEMISTRY 2018. [DOI: 10.3233/mgc-180257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Younes Valadbeigi
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
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12
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Üngördü A, Tezer N. DFT study on metal-mediated uracil base pair complexes. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2017.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Srivastava R. Theoretical studies on the electronic and optoelectronic properties of [A.2AP(w)/A*.2AP(WC)/C.2AP(w)/C*.2AP(WC)/C.A(w)/C*.A(WC)]–Au8 mismatch nucleobase complexes. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1382737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ruby Srivastava
- Center for Molecular Modeling, CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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14
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Zhou F, Cui X, Shang A, Lian J, Yang L, Jin Y, Li B. Fluorometric determination of the activity and inhibition of terminal deoxynucleotidyl transferase via in-situ formation of copper nanoclusters using enzymatically generated DNA as template. Mikrochim Acta 2017. [DOI: 10.1007/s00604-016-2065-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Zhang S, Liu H, Cheng P, Ren D, Gong X. Analysis of the [CuL n ]2+ and [CuG n ]2+ (n = 2–4) complex structures: Comparison with CID experiment and DFT calculation. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416130173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Li H, Zhang L, Zhou H, Wang Y, Fan X. Theoretical studies on the single proton transfer process in adenine base. J PHYS ORG CHEM 2015. [DOI: 10.1002/poc.3479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Huifang Li
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 PR China
| | - Lisheng Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 PR China
| | - Hui Zhou
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 PR China
| | - Yanfei Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 PR China
| | - Xiaolin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry; Gannan Normal University; Ganzhou 341000 PR China
- Material and Chemical Engineering Department; Pingxiang University; Pingxiang 337055 PR China
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17
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Stasyuk OA, Szatylowicz H, Krygowski TM. Aromaticity of H-bonded and metal complexes of guanine tautomers. Struct Chem 2015. [DOI: 10.1007/s11224-015-0605-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Siddiqui SA, Rasheed T, Bouarissa N, Al-Hajry A. Possible use of BN-modified fullerene as a nano-biosensor to detect adenine–thymine Watson–Crick base pair in mutagenic tautomeric form: Theoretical approach. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2015. [DOI: 10.1142/s0219633615500030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
The present work deals with the theoretical investigation of electronic structure features and stability of adenine–thymine (AT) and rare tautomer of adenine–thymine (rAT) base pairs along with their complexes with Cu 2+ cation and their interactions with BN doped fullerene ( C 58 BN ). All the calculations have been performed with density functional theory using B3LYP functional. Electronic structures of the two base pairs are almost identical. Hence, it is rather difficult to distinguish between the two base pairs on the basis of their electronic properties. As per our theoretical calculations, we have observed that, BN modified fullerene could act as a nano-biosensor for detection of mispairing between these two complementary bases as well as their Cu 2+ complexes.
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Affiliation(s)
- Shamoon Ahmad Siddiqui
- Promising Centre for Sensors and Electronic Devices, Najran University, Najran, KSA
- Department of Physics, College of Arts and Science, Najran University, Najran, KSA
| | - Tabish Rasheed
- Department of Applied Sciences, School of Engineering and Technology, Sharda University, Plot No. 32–34, Knowledge Park III, Greater Noida, N.C.R., U.P., India-201306, India
| | - Nadir Bouarissa
- Department of Physics, Faculty of Science, University of M'sila, 28000 M'sila, Algeria
| | - A. Al-Hajry
- Promising Centre for Sensors and Electronic Devices, Najran University, Najran, KSA
- Department of Physics, College of Arts and Science, Najran University, Najran, KSA
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Joo JH, Lee JS. Divalent metal ion-mediated assembly of spherical nucleic acids: the case study of Cu2+. Phys Chem Chem Phys 2015; 17:30292-9. [DOI: 10.1039/c5cp05202e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A new strategy for reversibly assembling spherical nucleic acids (SNAs) is demonstrated based on the coordinative binding of divalent metal ions, particularly Cu2+, to nucleobases.
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Affiliation(s)
- Jang Ho Joo
- Department of Materials Science and Engineering
- Korea University
- Seoul
- 02841 Republic of Korea
| | - Jae-Seung Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul
- 02841 Republic of Korea
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20
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Song Q, Shi Y, He D, Xu S, Ouyang J. Sequence-dependent dsDNA-templated formation of fluorescent copper nanoparticles. Chemistry 2014; 21:2417-22. [PMID: 25510235 DOI: 10.1002/chem.201405726] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Indexed: 12/21/2022]
Abstract
There are only a few systematic rules about how to selectively control the formation of DNA-templated metal nanoparticles (NPs) by varying sequence combinations of double-stranded DNA (dsDNA), although many attempts have been made. Herein, we develop a facile method for sequence-dependent formation of fluorescent CuNPs by using dsDNA as templates. Compared with random sequences, AT sequences are better templates for highly fluorescent CuNPs. Other specific sequences, for example, GC sequences, do not induce the formation of CuNPs. These results shed light on directed DNA metallization in a sequence-specific manner. Significantly, both the fluorescence intensity and the fluorescence lifetime of CuNPs can be tuned by the length or the sequence of dsDNA. In order to demonstrate the promising practicality of our findings, a sensitive and label-free fluorescence nuclease assay is proposed.
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Affiliation(s)
- Quanwei Song
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
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Siddiqui SA, Bouarissa N, Rasheed T, Al-Hajry A. Quantum chemical investigations of AlN-doped C60 for use as a nano-biosensor in detection of mispairing between DNA bases. J Biosci 2014; 39:761-9. [PMID: 25431406 DOI: 10.1007/s12038-014-9475-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Quantum chemical calculations were carried out to study the electronic structure and stability of adenine-thymine and the rare tautomer of adenine-thymine base pairs along with their Cu 2+ complexes and their interactions with AlN-modified fullerene (C58AlN) using Density Functional Theory (B3LYP method). Since, these two forms of base pairs and their Cu 2+ complexes have almost similar electronic structures, their chemical differentiation is an extremely difficult task. In this investigation, we have observed that AlN-doped C 60 could be used as a potentially viable nanoscale sensor to detect these two base pairs as well as their Cu2+ complexes.
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Affiliation(s)
- Shamoon Ahmad Siddiqui
- Promising Centre for Sensors and Electronic Devices, College of Arts and Science, Najran University, Najran, KSA
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22
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Salpin JY, Haldys V, Guillaumont S, Tortajada J, Hurtado M, Lamsabhi AM. Gas-Phase Interactions between Lead(II) Ions and Cytosine: Tandem Mass Spectrometry and Infrared Multiple-Photon Dissociation Spectroscopy Study. Chemphyschem 2014; 15:2959-71. [DOI: 10.1002/cphc.201402369] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Indexed: 12/07/2022]
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24
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Randomness and multilevel interactions in biology. Theory Biosci 2013; 132:139-58. [PMID: 23637008 DOI: 10.1007/s12064-013-0179-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Accepted: 02/11/2013] [Indexed: 10/26/2022]
Abstract
The dynamic instability of living systems and the "superposition" of different forms of randomness are viewed, in this paper, as components of the contingently changing, or even increasing, organization of life through ontogenesis or evolution. To this purpose, we first survey how classical and quantum physics define randomness differently. We then discuss why this requires, in our view, an enriched understanding of the effects of their concurrent presence in biological systems' dynamics. Biological randomness is then presented not only as an essential component of the heterogeneous determination and intrinsic unpredictability proper to life phenomena, due to the nesting of, and interaction between many levels of organization, but also as a key component of its structural stability. We will note as well that increasing organization, while increasing "order", induces growing disorder, not only by energy dispersal effects, but also by increasing variability and differentiation. Finally, we discuss the cooperation between diverse components in biological networks; this cooperation implies the presence of constraints due to the particular nature of bio-entanglement and bio-resonance, two notions to be reviewed and defined in the paper.
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Im YJ, Jung SM, Kang YS, Kim HT. Structural Analysis of Cu Binding Site in [Cu(I)·d(CpG)·d(CpG)-2H] -1Complex. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.4.1232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Eizaguirre A, Mó O, Yáñez M, Salpin JY, Tortajada J. Modelling peptide-metal dication interactions: formamide-Ca2+ reactions in the gas phase. Org Biomol Chem 2013; 10:7552-61. [PMID: 22892540 DOI: 10.1039/c2ob26166a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The collision induced dissociation of formamide-Ca(2+) complexes produced in the gas phase through nanoelectrospray ionization yields as main products ions [CaOH](+), [HCNH](+), [Ca(NH(2))](+), HCO(+) and [Ca(NH(3))](2+) and possibly [Ca(H(2)O)](2+) and [C,O,Ca](2+), the latter being rather minor. The mechanisms behind these fragmentation processes have been established by analyzing the topology of the potential energy surface by means of B3LYP calculations carried out with a core-correlated cc-pWCVTZ basis set. The Ca(2+) complexes formed by formamide itself and formimidic acid play a fundamental role. The former undergoes a charge separation reaction yielding [Ca(NH(2))](+) + HCO(+), and the latter undergoes the most favorable Coulomb explosion yielding [Ca-OH](+) + [HCNH](+) and is the origin of a multistep mechanism which accounts for the observed loss of water and HCN. Conversely, the other isomer of formamide, amino(hydroxyl)carbene, does not play any significant role in the unimolecular reactivity of the doubly charged molecular cation.
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Affiliation(s)
- Ane Eizaguirre
- Departamento de Química, Módulo 13, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049, Madrid, Spain
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27
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Eizaguirre A, Mó O, Yáñez M, Tortajada J, Salpin JY. Unimolecular reactivity of the [urea-Sr]2+ complex, a metastable dication in the gas phase: an experimental and theoretical perspective. J Phys Chem B 2013; 117:2088-95. [PMID: 23343443 DOI: 10.1021/jp312466t] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The interactions between urea and Sr(2+) in the gas phase have been investigated by combining electrospray ionization/mass spectrometry techniques and density functional and high-level ab initio molecular orbital calculations. Our theoretical survey indicates that [Sr(urea)](2+) adducts are thermodynamically stable with respect to direct Coulomb explosions. However, after isomerization, some of the local minima of the PES are thermodynamically unstable with respect to the formation of NH(4)(+), but kinetically metastable. The loss of neutral fragments with the concomitant generation of lighter doubly charged fragment ions, namely, [(H(3)N)Sr](2+) and [(HNCO)]Sr(2+), compete with the aforementioned Coulomb explosion processes yielding NH(4)(+) + [(NCO)Sr](+) and [(H(2)N)Sr](+) + [H(2)NCO](+), although the former processes dominate. Hence, both singly and doubly charged species are detected as dissociation products. Quite importantly, the observed eliminations of NH(3) or HNCO lead to the formation of new doubly charged species, which turn out to be thermodynamically stable.
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Affiliation(s)
- Ane Eizaguirre
- Departamento de Química, Módulo 13, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco 28049, Madrid, Spain
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28
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Wang M, Zhao J, Bu Y. Theoretical exploration of structures and electronic properties of double-electron oxidized guanine–cytosine base pairs with intriguing radical–radical interactions. Phys Chem Chem Phys 2013; 15:18453-63. [DOI: 10.1039/c3cp52745j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Lin Y, Wang H, Gao S, Li R, Schaefer HF. Hydrogen-Bonded Double-Proton Transfer in Five Guanine–Cytosine Base Pairs after Hydrogen Atom Addition. J Phys Chem B 2012; 116:8908-15. [DOI: 10.1021/jp3048746] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuexia Lin
- School of
Physical Science and
Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Hongyan Wang
- School of
Physical Science and
Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Simin Gao
- School of
Physical Science and
Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Ruhu Li
- School of
Physical Science and
Technology, Southwest Jiaotong University, Chengdu 610031, P. R. China
| | - Henry F. Schaefer
- Center for Computational Quantum
Chemistry, University of Georgia, Athens,
Georgia 30602, United States
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30
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Interaction of adenine Cu(II) complexes with BN-doped fullerene differentiates electronically equivalent tautomers. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.04.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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A quantum-chemical study of the binding ability of βXaaHisGlyHis towards copper(II) ion. J Mol Model 2012; 18:1365-74. [PMID: 21761180 PMCID: PMC3313029 DOI: 10.1007/s00894-011-1162-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 06/24/2011] [Indexed: 11/30/2022]
Abstract
The present study analyzed binding of Cu2+ to tetrapeptides in water solution at several levels of theoretical approximation. The methods used to study the energetic and structural properties of the complexes in question include semiempirical hamiltonians, density functional theory as well as ab initio approaches including electron correlation effects. In order to shed light on the character of interactions between Cu2+ and peptides, which are expected to be mainly electrostatic in nature, decomposition of interaction energy into physically meaningful components was applied.
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32
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Can anion interaction accelerate transformation of cytosine tautomers? Detailed view form QTAIM analysis. Struct Chem 2012. [DOI: 10.1007/s11224-012-9993-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Cerón-Carrasco JP, Requena A, Jacquemin D. Impact of DFT functionals on the predicted magnesium–DNA interaction: an ONIOM study. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1188-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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34
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Mg2+/Ca2+ binding to DNA bases: a quantum chemical method and ABEEMσπ/MM fluctuating charge model study. Theor Chem Acc 2012. [DOI: 10.1007/s00214-012-1098-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Romancová I, Chval Z, Předota M. Influence of the Environment on the Specificity of the Mg(II) Binding to Uracil. J Phys Chem A 2012; 116:1786-93. [DOI: 10.1021/jp208823f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ingrid Romancová
- Institute
of Physics
and Biophysics, Faculty of Science, University of South Bohemia, Branišovská 31, CZ-370
05 České Budějovice, Czech Republic
| | - Zdeněk Chval
- Department of Laboratory
Methods and Information Systems, Faculty of Health and
Social Studies, University of South Bohemia, J. Boreckého 27, CZ-370 11 České Budějovice,
Czech Republic
| | - Milan Předota
- Institute
of Physics
and Biophysics, Faculty of Science, University of South Bohemia, Branišovská 31, CZ-370
05 České Budějovice, Czech Republic
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36
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Cerón-Carrasco JP, Jacquemin D, Cauët E. Cisplatin cytotoxicity: a theoretical study of induced mutations. Phys Chem Chem Phys 2012; 14:12457-64. [DOI: 10.1039/c2cp40515f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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37
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Zhang S, Xu L, Dong J, Cheng P, Zhou Z, Fu J. Collision-induced dissociation of singly and doubly charged CuII–cytidine complexes in the gas phase: an experimental and computational study. RSC Adv 2012. [DOI: 10.1039/c2ra01293f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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38
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Gao Q, Giordano C, Antonietti M. Controlled synthesis of tantalum oxynitride and nitride nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2011; 7:3334-3340. [PMID: 22009942 DOI: 10.1002/smll.201101207] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 07/28/2011] [Indexed: 05/31/2023]
Abstract
Synthesis of monodisperse metal nitride and oxynitride nanoparticles with a controllable chemical composition, size, and a well-defined morphology are useful for applications in fields of catalysis, optoelectronics, and electrochemistry. In this paper a novel method for the controllable synthesis of highly crystalline tantalum oxynitride and nitride nanoparticles with a relatively low polydispersity is presented using urea as the nitrogen source. In the presence of calcium ions as assisting agents, by simply varying the initial urea/Ta molar ratio, both the composition and size of the final product can be tailored to switch from TaON to Ta3 N5. The mechanism proposed is that Ca2+ slows down the release of NH3 from the decomposition of urea, which is indispensable for the controllable synthesis of oxynitride and nitride based nanoparticles.
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Affiliation(s)
- Qingsheng Gao
- Max-Planck-Institute of Colloids and Interfaces, Colloid Chemistry, Research Campus Golm, Am Mühlenberg, D-14476 Potsdam, Germany
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39
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WANG NANA, LI PING, HU YI, BU YUXIANG, WANG WEIHUA, XIE XIAOYAN. ASSOCIATION OF URACIL WITH Zn2+ AND THE HYDRATED Zn2+: A DFT INVESTIGATION. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633607002927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The association behaviors between Uracil and Zn 2+ in vacuum and in the presence of extra water molecules have been investigated systematically using the density functional theory (DFT). In these systems, the interaction of Zn 2+ with the carbonyl oxygen O 4 is systematically favored relative to O 2. For Uracil- Zn 2+ complexes, the more stable coordination mode among the possible complexes corresponds to the bidentate one, where the monodentate coordination mode is about 37 kcal/mol higher in energy relative to the bidentate case. Correspondingly, the stabilities of these structures are enhanced due to the formations of the four-membered chelate ring in the bidentate coordination processes. In the monodentate coordination complexes, the hydration effects are larger than those in the bidentate coordination complexes. The most basic center in the Uracil remains the same regardless of whether introducing the water molecules to Zn 2+ or not. The calculated Zn 2+ bonding energies in Uracil- Zn 2+( H 2 O ) complexes are reduced in comparison to those of the unhydrated Uracil- Zn 2+ complexes. Moreover, investigations of stepwise hydration of Zn 2+ in the most stable Uracil- Zn 2+ complex suggest that the successive hydration effect on the Zn 2+ site can enhance the strength of C = O bond in the Uracil- Zn 2+ complexes and reduce the association interaction of Uracil with Zn 2+. Additionally, the most acidic site of Uracil has been changed from N 1- to N 3– H group before and after introducing the Zn 2+ and there is a significant increase in the overall acidity of the system.
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Affiliation(s)
- NANA WANG
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - PING LI
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - YI HU
- High-performance Computational Center, Shandong University, Jinan, 250100, P. R. China
| | - YUXIANG BU
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
- Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China
| | - WEIHUA WANG
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - XIAOYAN XIE
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
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40
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Lin Y, Wang H, Gao S, Schaefer HF. Hydrogen-Bonded Proton Transfer in the Protonated Guanine-Cytosine (GC+H)+ Base Pair. J Phys Chem B 2011; 115:11746-56. [DOI: 10.1021/jp205403f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yuexia Lin
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Hongyan Wang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Simin Gao
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, People's Republic of China
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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41
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Cerón-Carrasco JP, Jacquemin D. Influence of Mg2+ on the Guanine-Cytosine Tautomeric Equilibrium: Simulations of the Induced Intermolecular Proton Transfer. Chemphyschem 2011; 12:2615-23. [DOI: 10.1002/cphc.201100264] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Revised: 06/28/2011] [Indexed: 01/01/2023]
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42
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Brancolini G, Felice RD. Combined effects of metal complexation and size expansion in the electronic structure of DNA base pairs. J Chem Phys 2011; 134:205102. [DOI: 10.1063/1.3593272] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Investigation of the Cu binding site at [dCdG] and [CG] base pairs in the absence of a DNA backbone. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.02.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Xing D, Tan X, Jiang X, Wang B. Deprotonation studies of Cu+–guanine and Cu2+–guanine complexes by theoretical investigation. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2010.11.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Dong C, Yang J, Ning H, Li C. Studies on structures, energetics, and electron affinities of As–nucleobases and their anions with density functional theory. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.theochem.2010.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Krasnokutski SA, Lee JS, Yang DS. High-resolution electron spectroscopy and structures of lithium-nucleobase (adenine, uracil, and thymine) complexes. J Chem Phys 2010; 132:044304. [DOI: 10.1063/1.3299278] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Georgieva I, Aquino AJA, Trendafilova N, Santos PS, Lischka H. Solvatochromic and Ionochromic Effects of Iron(II)bis(1,10-phenanthroline)dicyano: a Theoretical Study. Inorg Chem 2010; 49:1634-46. [DOI: 10.1021/ic9020299] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Ivelina Georgieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | - Natasha Trendafilova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Paulo S. Santos
- Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Hans Lischka
- Institute for Theoretical Chemistry, University of Vienna, Vienna, Austria
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48
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Chen X, Xing D, Zhang L, Cukier RI, Bu Y. Effect of metal ions on radical type and proton-coupled electron transfer channel: σ-Radical vs π-radical and σ-channel vs π-channel in the imide units. J Comput Chem 2009; 30:2694-705. [DOI: 10.1002/jcc.21284] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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49
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Georgieva I, Trendafilova N, Creaven BS, Walsh M, Noble A, McCann M. Is the CO frequency shift a reliable indicator of coumarin binding to metal ions through the carbonyl oxygen? Chem Phys 2009. [DOI: 10.1016/j.chemphys.2009.10.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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50
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Alagona G, Ghio C. Antioxidant Properties of Pterocarpans through Their Copper(II) Coordination Ability. A DFT Study in Vacuo and in Aqueous Solution. J Phys Chem A 2009; 113:15206-16. [DOI: 10.1021/jp905521u] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Giuliano Alagona
- CNR-IPCF, Institute for Physico-Chemical Processes, MML, Via Moruzzi 1, I-56124 Pisa, Italy
| | - Caterina Ghio
- CNR-IPCF, Institute for Physico-Chemical Processes, MML, Via Moruzzi 1, I-56124 Pisa, Italy
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