| Yazarlar |
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN
Kastamonu Üniversitesi, Türkiye |
| Özet |
| Quantum-chemical solvent effect theories describe the electronic structure of a molecular subsystem embedded in a solvent or other molecular environment. The solvation of biomolecules is important in molecular biology, since numerous processes involve proteins interacting in changing solvent-solute systems. In this theoretical study, we focus on mRNA-tRNA base pairs as a fundamental step in protein synthesis influenced by hydrogen bonding between two antiparallel trinucleotides, namely, the mRNA codon and tRNA anticodon. We use the mean reaction field theories, which describe electrostatic and polarization interactions between solute and solvent in the AAA, UUU, AAG, and UUC triplex sequences optimized in various solvent media such as water, dimethylsulfoxide, methanol, ethanol, and cyclopean using the self-consistent reaction field model. This process depends on either the reaction potential function of the solvent or charge transfer operators that appear in solute-solvent interaction. Because of codon and anticodon biological criteria, we performed nonempirical quantum-mechanical calculations at the BLYP and B3LYP/3-21G, 6-31G, and 6-31G*levels of theory in the gas phase and five solvents at three temperatures. Finally, to obtain more information, we calculated thermochemical parameters to find that the dielectric constant of solvents plays an important role in the displacement of amino acid sequences on codon-anticodon residues in proteins, which can cause some mutations in humans. © Pleiades Publishing, Ltd., 2008. |
| Anahtar Kelimeler |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SCOPUS dergilerinde yayımlanan tam makale |
| Dergi Adı | Russian Journal of Physical Chemistry A |
| Dergi ISSN | 0036-0244 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Makale Dili | İngilizce |
| Basım Tarihi | 12-2008 |
| Cilt No | 82 |
| Sayı | 13 |
| Sayfalar | 2277 / 2285 |
| Doi Numarası | 10.1134/S0036024408130207 |
| Makale Linki | http://dx.doi.org/10.1134/s0036024408130207 |
| Atıf Sayıları | |
| WoS | 17 |
| SCOPUS | 75 |
| Google Scholar | 55 |
