Density functional theoretical study on the preferential selectivity of macrocyclic dicyclohexano-18-crown-6 for Sr⁺² ion over Th⁺⁴ ion during extraction from an aqueous phase to organic phases with different dielectric constants.

abstract：:Epidermal growth factor receptors (EGFR) are associated with a number of biological processes and are becoming increasingly recognized as important therapeutic targets against cancer. In this work, we provide models based on homology for the extracellular domains (ECD) of ErbB3 and ErbB4 in their active conformations,...

journal_title：Journal of molecular modeling

authors： Franco-Gonzalez JF,Ramos J,Cruz VL,Martínez-Salazar J

更新日期：2013-02-01 00:00:00

abstract：:We propose a scheme to estimate hydrogen isotope effects on molecular polarizabilities. This approach combines the any-particle molecular orbital method, in which both electrons and H/D nuclei are described as quantum waves, with the auxiliary density perturbation theory, to calculate analytically the polarizability t...

journal_title：Journal of molecular modeling

authors： Moncada F,Flores-Moreno R,Reyes A

更新日期：2017-03-01 00:00:00

abstract：:White spot disease is a devastating disease of shrimp Penaeus monodon in which the shrimp receptor protein PmRab7 interacts with viral envelop protein VP28 to form PmRab7-VP28 complex, which causes initiation of the disease. The molecular mechanism implicated in the disease, the dynamic behavior of proteins as well as...

journal_title：Journal of molecular modeling

authors： Verma AK,Gupta S,Verma S,Mishra A,Nagpure NS,Singh SP,Pathak AK,Sarkar UK,Singh SP,Singh M,Seth PK

更新日期：2013-03-01 00:00:00

abstract：:The Z-DNA-binding domain of human double-stranded RNA adenosine deaminase I (hZαADAR1) can specifically recognize the left-handed Z-DNA which preferentially occurs at alternating purine-pyrimidine repeats, especially the CG-repeats. The interactions of hZαADAR1 and Z-DNAs in different sequence contexts can affect many...

journal_title：Journal of molecular modeling

authors： Wang Q,Li L,Wang X,Liu H,Yao X

更新日期：2014-11-01 00:00:00

abstract：:DFT calculations were carried out on the homo- and hetero-bimetallic model wires [(η(5)-C5H5)(dpe)Fe-C≡C-C6H4-C≡C-Fe(dpe)(η(5)-C5H5)] (1'), [(η(7)-C7H7)(dpe)Mo-C≡C-C6H4-C≡C-Mo(dpe)(η(7)-C7H7)] (2'), and [(η(5)-C5H5)(dpe)Fe-C≡C-C6H4-C≡C-Mo(dpe)(η(7)-C7H7)] (3') used to tentatively mimic [(η(5)-C5Me5)(dppe)Fe-C≡C-C6H4-C...

journal_title：Journal of molecular modeling

authors： Ladjarafi A,Costuas K,Meghezzi H,Halet JF

更新日期：2015-04-01 00:00:00

abstract：:Realistic molecular models of one and two-centre catalytic active sites originating from the cleavage of a precursor material known to give rise to an active double metal cyanide catalyst are described. Via periodic density functional calculations the structure of the proposed catalytic sites are shown to be dependent...

journal_title：Journal of molecular modeling

authors： Wojdeł JC,Bromley ST,Illas F,Jansen JC

更新日期：2007-07-01 00:00:00

abstract：:The mechanism and origin of selectivity for [3 + 2]-cycloaddition (32CA) reactions between thioketone and carbohydrate-derived nitrones in THF were investigated by using the density functional theory (DFT) at the M06-2X/6-311+G(d,p)//M06-2X/6-31+G(d,p) level of theory combined with the solvation SMD model. The calcula...

journal_title：Journal of molecular modeling

authors： Yang J,Zhang Y,Yang Y,Xue Y

更新日期：2019-07-02 00:00:00

abstract：:The electric field induced within a molecule by its electrons determines a whole series of important physical properties of the molecule. In particular, the values of the gradient of this field at the nuclei determine the interaction of their quadrupole moments with the electrons. Using unsymmetrical one-range additio...

journal_title：Journal of molecular modeling

authors： Guseinov II,Görgün NS

更新日期：2011-06-01 00:00:00

abstract：:The detailed decomposition mechanism of nitroglycerin (NG) in the gas phase was studied by examining reaction pathways using density functional theory (DFT) and canonical variational transition state theory combined with a small-curvature tunneling correction (CVT/SCT). The mechanism of NG autocatalytic decomposition ...

journal_title：Journal of molecular modeling

authors： Pei L,Dong K,Tang Y,Zhang B,Yu C,Li W

更新日期：2017-08-21 00:00:00

abstract：:A series of no-chlorine and oxygen-rich hydrazine derivatives (hydrazine modified with -NO₂ and NO₃(-) groups) was designed and optimized to obtain molecular geometries and electronic structures at density functional theory-B3PW91/6-311++G(3df,3pd) level. Some important properties such as bond dissociation enthalpy, d...

journal_title：Journal of molecular modeling

authors： Wang PC,Zhu ZS,Xu J,Zhao XJ,Lu M

更新日期：2013-06-01 00:00:00

abstract：:This article analyzes the interplay between X···N and X···X halogen bonds interactions in NCX···NCX···XCH3 complexes, where X=Cl and Br. To better understand the properties of these systems, the corresponding dyads were also studied. These effects are studied theoretically in terms of geometric and energetic features ...

journal_title：Journal of molecular modeling

authors： Esrafili MD,Vakili M,Solimannejad M

更新日期：2014-02-01 00:00:00

abstract：:The formation of selenium species in some biological processes involves the generation of ionic and radical intermediates such as RSe●, RSe-, RSeO●, and RSeO-, among others. We performed a theoretical study of the possible mechanisms for the reaction of the two simplest Se radicals-the hydroselenyl (HSe●) and seleneni...

journal_title：Journal of molecular modeling

authors： Vega-Teijido MA,Kieninger M,Ventura ON

更新日期：2017-12-05 00:00:00

abstract：:Several cellular disorders have been related to the overexpression of the cysteine protease cathepsin B (CatB), such as rheumatic arthritis, muscular dystrophy, osteoporosis, Alzheimer's disease, and tumor metastasis. Therefore, inhibiting CatB may be a way to control unregulated cellular functions and prevent tissue ...

journal_title：Journal of molecular modeling

authors： Vega-Teijido MA,El Chamy Maluf S,Bonturi CR,Sambrano JR,Ventura ON

更新日期：2014-06-01 00:00:00

abstract：:Geometries and energies of formation of bilirubin formed by reduction of biliverdin via three meso carbon sites, the beta, gamma and delta positions, have been calculated using semiempirical methods. It has been shown that gamma-bilirubin with a ridge-tile conformation forms six intramolecular hydrogen bonds and is th...

journal_title：Journal of molecular modeling

authors： Zahedi M,Kamalipour M,Safari N

更新日期：2002-04-01 00:00:00

abstract：:A survey of the fascinating history of anesthetics and the many critical findings that have improved our understanding of anesthetic activity is followed by an expanded analysis of the electrostatic potentials of 27 molecules and two noble gases with anesthetic activities ranging from high to totally inactive. We agai...

journal_title：Journal of molecular modeling

authors： Shields ZP,Seybold PG,Murray JS

更新日期：2017-12-19 00:00:00

abstract：:A coarse-grained Brownian dynamics model was used to simulate two proteins of similar sizes inside model membrane pores of varying size and hydrophobicity. The two proteins, which have radii of gyration of approximately 9.5 Å in their native states, are a 36-residue hydrophilic villin head piece (HP-36) and a 40-resid...

journal_title：Journal of molecular modeling

authors： Zhang Y,Zhang Y,McCready MJ,Maginn EJ

更新日期：2019-04-25 00:00:00

abstract：:Studying the electrochemical characteristics is an important step for determining interactions between molecules and the chemical environment. Moreover, the electrochemical evaluation of dyes is highly needed to establish the behavior of electro-active chemical species inside dye-sensitized solar cells (DSSCs). Four c...

journal_title：Journal of molecular modeling

authors： Ortega E,Bernède JC,Ramírez AMR,Louarn G,Díaz FR,Cattin L,Del Valle MA

更新日期：2019-02-27 00:00:00

abstract：:In this work molecular modeling was applied to generate homology models of the pore region of the Na(v)1.2 and Na(v)1.8 isoforms of human voltage-gated sodium channels. The models represent the channels in the resting, open, and fast-inactivated states. The transmembrane portions of the channels were based on the equi...

journal_title：Journal of molecular modeling

authors： Scheib H,McLay I,Guex N,Clare JJ,Blaney FE,Dale TJ,Tate SN,Robertson GM

更新日期：2006-09-01 00:00:00

abstract：:Here, we report theoretical research into the interaction of the drug tamoxifen drug with tripeptides found in the tumor environment-specifically, asparagine-glycine-arginine (NGR) and arginine-glycine-aspartic acid (RGD). Reactivity parameters of these tripeptides were calculated and their intrinsic reactivities and ...

journal_title：Journal of molecular modeling

authors： Landeros-Martínez LL,Glossman-Mitnik D,Flores-Holguín N

更新日期：2018-11-09 00:00:00

abstract：:The geometrical structure and electronic properties of bis(10-hydroxybenzo[h]quinolinato)beryllium (Bebq2) molecule and its dimer both in the neutral and in the positively and negatively charged states were studied using quantum-chemical calculations. It is found that the excess charge in the charged systems is locali...

journal_title：Journal of molecular modeling

authors： Safonov AA,Bagaturyants AA

更新日期：2014-08-01 00:00:00

abstract：:Ethanol and water are the solvents most commonly used to extract flavonoids from propolis. Do hydrogen-bonding interactions exist between flavonoids and ethanol/water? In this work, this question was addressed by using density functional theory (DFT) to provide information on the hydrogen-bonding interactions between ...

journal_title：Journal of molecular modeling

authors： Zheng YZ,Zhou Y,Liang Q,Chen DF,Guo R

更新日期：2016-04-01 00:00:00

abstract：:The present study analyzed binding of Cu(2+) 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 in...

journal_title：Journal of molecular modeling

authors： Czyżnikowska Z,Brasuń J

更新日期：2012-04-01 00:00:00

abstract：:The effect of CO2 and H2O on the behavior of shale gas confined in calcite [104] slit-like nanopore is investigated using molecular dynamics simulation technique. The study is relevant as the advancement of enhance gas recovery (EGR) technologies requires in-depth atomistic understanding of the hydrocarbons, water, ca...

journal_title：Journal of molecular modeling

authors： Berghe G,Kline S,Burket S,Bivens L,Johnson D,Singh R

更新日期：2019-09-02 00:00:00

abstract：:The binding properties of the protein-inhibitor complex of human immunodeficiency virus type 1 (HIV-1) protease with the inhibitor TMC-126 are investigated by combining computational alanine scanning (CAS) mutagenesis with binding free-energy decomposition (BFED). The calculated results demonstrate that the flap regio...

journal_title：Journal of molecular modeling

authors： Li D,Han JG,Chen H,Li L,Zhao RN,Liu G,Duan Y

更新日期：2012-05-01 00:00:00

abstract：:Density functional theory (DFT) has been applied to understand the influence of various linkages on the energetic properties and stability of the polynitro-biphenyl compounds. Structures were optimized using the B3PW91/6-31G(d,p) level, and the heats of formation (HOFs) were computed by employing the selected isodesmi...

journal_title：Journal of molecular modeling

authors： Nirwan A,Devi A,Ghule VD

更新日期：2019-09-15 00:00:00

abstract：:The average pull-out force and interaction energy of polyethylene (PE) cross-linked functionalized carbon nanotubes (cfCNTs) embedded in polymer matrices (PE-cfCNTs@polymers) was studied using molecular dynamics (MD) simulations. Accordingly, the pull-out process of PE-cfCNTs from inside polymer matrices, i.e., Aramid...

journal_title：Journal of molecular modeling

authors： Haghighi S,Ansari R,Ajori S

更新日期：2019-03-29 00:00:00

abstract：:The pathogen Legionella longbeachae is a causative agent of legionellosis. The antibiotic resistance is the major problem of this modern world. Thus, selective pressure warrants the need for identification of newer drug target. In current study, subtractive proteomics approach screen out SIS (sugar isomerase) domain p...

journal_title：Journal of molecular modeling

authors： Ahmad F,Shabaz Z,Azam SS

更新日期：2020-08-03 00:00:00

abstract：:The interpretation of mass spectra (ms) of molecules containing poly-isotopic elements (e.g. Ge, Se, W, Os, Sn, Te, Zn, Yb) can be difficult due to the occurrence of fragments resulting from isotopomeric composition. MS-clusters located in the range lower than or equal to M/2 are very difficult to interpret. In this a...

journal_title：Journal of molecular modeling

authors： Goraczko AJ,Szewczykowska K

更新日期：2009-06-01 00:00:00

abstract：:Studies of the interaction between phenol and intrinsic graphene, as well as phenol and aluminum doped graphene layer are performed using first principles total energy calculations within the periodic density functional theory. A 4x4 periodic structure is used to explore the adsorption of a phenol molecule on the intr...

journal_title：Journal of molecular modeling

authors： Hernández JM,Anota EC,de la Cruz MT,Melchor MG,Cocoletzi GH

更新日期：2012-08-01 00:00:00

abstract：:The Grand Canonical Monte Carlo method was used to analyse the phenomenon of adsorption of aromatic compounds (i.e. phenol, toluene, benzoic acid and salicylic acid) on the surface of the titania-silica (TiO2/SiO2) catalyst. We found that different types of interactions play important roles in the adsorption of molecu...

journal_title：Journal of molecular modeling

authors： Szyja B,Brodzik K

更新日期：2007-07-01 00:00:00