Comparative study of eight oxytocin antagonists by simulated annealing.

abstract：:Human immunodeficiency virus (HIV) infections continue to exert an enormous impact on global human health. This led experts to emphasize the importance of new measures for preventing HIV infections, including the development of vaccines and novel drugs. In this context, a promising approach involves the use of lectins...

journal_title：Journal of molecular modeling

authors： Conceição de Souza R,de Medeiros Muniz G,Siqueira AS,de Melo Lima A,da Silva AP,Gonçalves EC,da Silva Gonçalves Vianez Júnior JL

更新日期：2016-11-01 00:00:00

abstract：:Thermotropic polyurethanes with mesogenic groups in side chains were prepared from two diisocyanates and four diols with stoichiometric ratios of reactive isocyanate (NCO) and hydroxy (OH) groups. Their thermal behavior was determined by differential scanning calorimetry. The effect of structure modifications of the d...

journal_title：Journal of molecular modeling

authors： Repáková J,Capková P,Studenovský M,Ilavský M

更新日期：2004-08-01 00:00:00

abstract：:The heme-AB binding energies (AB = CO, O2) in a wild-type myoglobin (Mb) and two mutants (H64L, V68N) of Mb have been investigated in detail with both DFT and dispersion-corrected DFT methods, where H64L and V68N represent two different, opposite situations. Several dispersion correction approaches were tested in the ...

journal_title：Journal of molecular modeling

authors： Liao MS,Huang MJ,Watts JD

更新日期：2013-08-01 00:00:00

abstract：:The applicability of the newly developed PM6 method for modeling proteins is investigated. In order to allow the geometries of such large systems to be optimized rapidly, three modifications were made to the conventional semiempirical procedure: the matrix algebra method for solving the self-consistent field (SCF) equ...

journal_title：Journal of molecular modeling

authors： Stewart JJ

更新日期：2009-07-01 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：:Amorphous molecular simulation to model the reaction species in the synthesis of chemically inert and energetic 1,1-diamino-2,2-dinitroethene (DADNE) explosive material was performed in this work. Nitromethane was selected as the starting reactant to undergo halogenation, nitration, deprotonation, intermolecular conde...

journal_title：Journal of molecular modeling

authors： Liu MH,Liu CW

更新日期：2017-01-01 00:00:00

abstract：:The aqueous solvation of Th and Np in the IV oxidation state was examined using cluster models generated by Monte Carlo simulations and density functional theory embedded within the COSMO continuum model to approximate the effect of bulk water. Our results suggest that the coordination number (CN) for both Th(IV) and ...

journal_title：Journal of molecular modeling

authors： Amador DH,Sambrano JR,Gargano R,de Macedo LG

更新日期：2017-03-01 00:00:00

abstract：:The intercalation process and the structure of montmorillonite intercalated with [rhodamine B]+ cations have been investigated using molecular modeling (molecular mechanics and molecular dynamics simulations), X-ray powder diffraction and IR spectroscopy. The structure of the intercalate depends strongly on the concen...

journal_title：Journal of molecular modeling

authors： Pospísil M,Capková P,Weissmannová H,Klika Z,Trchová M,Chmielová M,Weiss Z

更新日期：2003-02-01 00:00:00

abstract：:Several noble-gas-containing molecules XNgY were observed experimentally. However, the bonding in such systems is still not understood. Using natural bond orbital and natural resonance theory (NBO/NRT) methods, the present work investigated bonding of the title molecules. The results show that each of the studied XNgY...

journal_title：Journal of molecular modeling

authors： Song J,Su Y,Jia Y,Chen L,Zhang G

更新日期：2018-05-07 00:00:00

abstract：:In this work, a scheme to generate exact wave functions and eigenvalues for the spherically symmetric three-dimensional position-dependent effective mass Schrödinger equation is presented. The methodology is implemented by means of separation of variables and point canonical transformations that allow to recognize a r...

journal_title：Journal of molecular modeling

authors： Ovando G,Morales J,López-Bonilla JL

更新日期：2013-05-01 00:00:00

abstract：:In the present study, DFT calculations are carried out on domestically designed 7-methyl-2-phenyl-5'H-spiro[chromene-4,2'-chromeno[3,4-e][1,3]oxazin]-5'-one spiropyran and merocyanine derivatives to recognize alkali and alkaline earth metal ions. Detection of these metal ions can be attained by exploiting the variatio...

journal_title：Journal of molecular modeling

authors： Arif AM,Yousaf A,Zhong RL,Akhtar M,Muhammad S,Xu HL,Su ZM

更新日期：2019-07-06 00:00:00

abstract：:Multicenter overlap integrals appearing in the evaluation of multicenter-multielectron integrals of central and noncentral interaction potentials are calculated using complete orthonormal sets of psi(alpha)-ETOs (alpha=1, 0, -1, -2,...). The final results are expressed in terms of two-center overlap integrals between ...

journal_title：Journal of molecular modeling

authors： Guseinov I,Aydin R,Mamedov B

更新日期：2003-10-01 00:00:00

abstract：:The nitrogen doping and phenyl substitution effects on the geometries, molecular stacking character, electronic, and charge transport properties of tetrabenzoheptacene (TTBH) have been investigated by means of density functional theory (DFT) calculation and incoherent charge hopping model. Our results indicate that th...

journal_title：Journal of molecular modeling

authors： Guan L,Wang W,Shao R,Liu F,Yin S

更新日期：2015-05-01 00:00:00

abstract：:Cyclic nucleotide binding domain (CNBD) is a ubiquitous domain of effector proteins involved in signalling cascades of prokaryota and eukaryota. CNBD activation by cyclic nucleotide monophosphate (cNMP) is studied well in the case of several proteins. However, this knowledge is hardly applicable to cNMP-modulated cati...

journal_title：Journal of molecular modeling

authors： Gushchin IY,Gordeliy VI,Grudinin S

更新日期：2012-09-01 00:00:00

abstract：:The internal rotation in ammonia borane (AB) was studied on the basis of natural orbitals for chemical valence (NOCV) and eigenvectors for Pauli repulsion (NOPR). We found that the total hyperconjugation stabilization (ca. 5 kcal mol(-1)), based on the charge transfer from the occupied σ (B-H) orbitals into the empty ...

journal_title：Journal of molecular modeling

authors： Parafiniuk M,Mitoraj MP

更新日期：2014-06-01 00:00:00

abstract：:Solar-assisted water splitting using photoelectrochemical cells (PECs) is one of the promising ways for the production of hydrogen to store renewable energy. Semiconducting materials are used as a key factor which controls the overall energy conversion efficiency in PECs. However, finding new semiconductors with appro...

journal_title：Journal of molecular modeling

authors： Uğur Ş,Akbudak S,Kushwaha AK,Bayrak G

更新日期：2020-05-15 00:00:00

abstract：:Conjugate peak refinement (CPR) is a powerful and robust method to search transition states on a molecular potential energy surface. Nevertheless, the method was to the best of our knowledge so far only implemented in CHARMM. In this paper, we present PyCPR, a new Python-based implementation of the CPR algorithm withi...

journal_title：Journal of molecular modeling

authors： Gisdon FJ,Culka M,Ullmann GM

更新日期：2016-10-01 00:00:00

abstract：:Quantum chemical calculations of the structures and stabilities of the title series at the CCSD(T) theoretical level are performed. Laplacian, electron density deformation, electron localization function and reduced density gradient analysis are investigated to explore the nature of the interaction. The results show t...

journal_title：Journal of molecular modeling

authors： Li X

更新日期：2012-03-01 00:00:00

abstract：:Paracetamol is a relatively safe analgesia/antipyretic drug without the risks of addiction, dependence, tolerance, and withdrawal when used alone. However, when administrated in an opioid/paracetamol combination product, which often contains a large quantity of paracetamol, it can be potentially dangerous due to the r...

journal_title：Journal of molecular modeling

authors： Wang Y,Lin W,Wu N,He X,Wang J,Feng Z,Xie XQ

更新日期：2018-08-18 00:00:00

abstract：:To determine the kinase inhibitory potential of natural products that could be utilized in lung cancer therapy in the near future, a pharmacophore-based activity profiling protocol using parallel pharmacophore-based virtual screening of ZINC-a natural product database-was employed. The work presented here is based on ...

journal_title：Journal of molecular modeling

authors： Singh PK,Silakari O

更新日期：2018-10-20 00:00:00

abstract：:Acylthiocarbamates (ATCs) have been identified as a class of potent non-nucleoside HIV-1 reverse transcriptase (RT) inhibitors. A computational strategy based on molecular docking studies followed by comparative molecular fields analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA) was used t...

journal_title：Journal of molecular modeling

authors： Cichero E,Cesarini S,Spallarossa A,Mosti L,Fossa P

更新日期：2009-07-01 00:00:00

abstract：:Comprehensive molecular dynamics simulations are conducted to identify material modifications which can improve strength and reduce hysteresis losses at the nanointerfaces formed between silica, silane coupling agent (SCA) and styrene-butadiene rubber (SBR), all of which are important ingredients of green tyres. Impro...

journal_title：Journal of molecular modeling

authors： Joseph E,Swaminathan N,Kannan K

更新日期：2020-08-17 00:00:00

abstract：:Abnormal expression of cyclin-dependent kinase 2 (CDK2)/cyclin-E is detected in colorectal, ovarian, breast and prostate cancers. The study of CDK2 with a bound inhibitor revealed CDK2 as a potential therapeutic target for several proliferative diseases. Several highly selective inhibitors of CDK2 are currently underg...

journal_title：Journal of molecular modeling

authors： Pasha FA,Neaz MM

更新日期：2013-02-01 00:00:00

abstract：:Noncovalent interactions in XCN···YO2H (X = F, Cl, Br, I; Y = P, As, Sb) complexes were investigated using ab initio calculations at the MP2/aug-cc-pVDZ level of theory. There are four different configurations of these complexes, and the complexes are formed via hydrogen bonds, halogen bonds, π-hole interactions, or d...

journal_title：Journal of molecular modeling

authors： Zhao Q

更新日期：2017-06-01 00:00:00

abstract：:Hydrogen dissociative chemisorption and desorption on small lowest energy Ni(n) clusters up to n=13 as a function of H coverage was studied using density functional theory. H adsorption on the clusters was found to be preferentially at edge sites followed by 3-fold hollow sites and on-top sites. The minimum energy pat...

journal_title：Journal of molecular modeling

authors： Zhou C,Yao S,Zhang Q,Wu J,Yang M,Forrey RC,Cheng H

更新日期：2011-09-01 00:00:00

abstract：:The structure and electronic properties of the complexes formed by the interaction of imidazole and pyrazole with different BeXH(BeX2) (X = H, Me, F, Cl) derivatives have been investigated via B3LYP/6-311+G(3df,2p)//B3LYP/6-31+G(d,p) calculations. The formation of these azole:BeXH(BeX2) complexes is accompanied by a d...

journal_title：Journal of molecular modeling

authors： Mó O,Yáñez M,Alkorta I,Elguero J

更新日期：2013-10-01 00:00:00

abstract：:To date, no suitable vaccine or specific antiviral drug is available to treat Chikungunya viral (CHIKV) fever. Hence, it is essential to identify drug candidates that could potentially impede CHIKV infection. Here, we present the development of a homology model of nsP2 protein based on the crystal structure of the nsP...

journal_title：Journal of molecular modeling

authors： Singh KhD,Kirubakaran P,Nagarajan S,Sakkiah S,Muthusamy K,Velmurgan D,Jeyakanthan J

更新日期：2012-01-01 00:00:00

abstract：:The structures and stabilities of eleven N13+ and N13- isomers have been investigated with second-order Moller-Plesset (MP2) and density functional theory (DFT) methods. Five N13+ isomers and six N13- isomers are all reasonable local minima on their potential energy hypersurfaces. The most stable N13+ cation is struct...

journal_title：Journal of molecular modeling

authors： Yin PG,Li QS

更新日期：2004-02-01 00:00:00

abstract：:The contribution of folic acid (FA)-tryptophan interactions to FA-protein association was investigated in the context of using FA as a drug carrier in protein delivery systems. Bovine serum albumin (BSA) and indolicidin were used as model proteins in the study. The FA-BSA complex was characterized by using the Bradfor...

journal_title：Journal of molecular modeling

authors： Gupta R,Kalita P,Patil O,Mohanty S

更新日期：2015-12-01 00:00:00

abstract：:4'-substituted neutral/protonated furfurylidenanilines and trans-styrylfurans are able to exist in two different conformations related to the rotation around the furan ring-bridge double bond. In this work, the equilibrium geometry and the corresponding rotational barrier of the benzene ring for each furan derivative ...

journal_title：Journal of molecular modeling

authors： Santos-Carballal D,Suardíaz R,Crespo-Otero R,González L,Pérez CS

更新日期：2013-10-01 00:00:00