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Wyszukujesz frazę "molecular docking" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Coarse-grained modeling of protein structure, dynamics and protein-protein interactions
Autorzy:
Koliński, A.
Kmiecik, S.
Jamróz, M.
Błaszczyk, M.
Kouza, M.
Kurciński, M.
Powiązania:
https://bibliotekanauki.pl/articles/1954428.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska
Tematy:
coarse-grained modeling
protein folding
protein dynamics
molecular docking
protein docking
Opis:
Theoretical prediction of protein structures and dynamics is essential for understanding the molecular basis of drug action, metabolic and signaling pathways in living cells, designing new technologies in the life science and material sciences . We developed and validated a novel multiscale methodology for the study of protein folding processes including flexible docking of proteins and peptides. The new modeling technique starts from coarse-grained large-scale simulations, followed by selection of the most plausible final structures and intermediates and, finally, by an all-atom rectification of the obtained structures. Except for the most basic bioinformatics tools, the entire computational methodology is based on the models and algorithms developed in our lab. The coarse-grained simulations are based on a high-resolution lattice representation of protein structures, a knowledge based statistical force field and efficient Monte Carlo dynamics schemes, including Replica Exchange algorithms. This paper focuses on the description of the coarse-grained CABS model and its selected applications.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2014, 18, 3; 219--229
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of interactions between dermorphin analogs and µ-opioid receptor
Autorzy:
Karczyńska, A.
Zaborowski, B.
Ślusarz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1935820.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska
Tematy:
molecular modeling
opioid receptors
defmorphin
molecular docking
drug design
modelowanie molekularne
receptory opioidowe
dokująca molekularna
projektowanie leków
dermorfina
Opis:
Opioid receptors play the pain control function in the body. Most of the research is carried out to find the most effective analgesic. The earliest analgesic is morphine, however, unfortunately it has many side effects [Mizoguchi H et al. 2003 J. Pharmacol Sci. 93 423]. At a later time dermorphin was discovered as another potent analgesic [Mont ecucchi P C et al. 1981 Int. J. Pept. Protein Res. 17 275]. Unfortunately, this peptide is not resistant to enzymatic metabolism [Kisara K et al. 1986 Br. J. Pharmacol. 87 183; Sasaki Y et al. 1985 Neuropeptides 5 391]. The objective of this study is to search for new opioid analgesics by investigation of interactions between dermorphin analogs and the μ -opioid receptor using molecular modeling methods. MOPR ( μ -Opioid Peptide Receptor) complexes with several ligands (with known biological activity) were modeled to explain how the structure of the complex was related to the biological activity. The investigated dermorphin analogs containing [ DMT1, D -Arg 2 ] (especially tetrapeptides) may become a good alternative for the currently used an algesics.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2014, 18, 4; 331--336
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling drug-receptor interactions in an average binding site for NK2
Autorzy:
Alagona, G.
Ghio, C.
Monti, S.
Powiązania:
https://bibliotekanauki.pl/articles/1953954.pdf
Data publikacji:
1998
Wydawca:
Politechnika Gdańska
Tematy:
receptor modelling
docking
non covalent interactions
molecular mechanics
molecular dynamics
substituent effects
Opis:
A tentative procedure applied to the search for a new antagonist of neurokinin A (NKA) is presented. In parallel a tentative 3-D model of the NK2 receptor was created, using bacteriorhodopsin (BRD) as a template. The residue substitutions were performed in BRD to obtain the sequence for NK2R_H and the seven a-helical segments were optimized forcing the a-helical backbone to match the corresponding aligned parts of BRD, while the arrangements of the side chains were model built based on available site-directed mutagenesis studies. Constrained MM and molecular dynamics simulations were carried out H-bonding a low energy conformer of the known drugs to residues in the receptor site, allowing both the receptor site and drugs to relax. The Connolly surface for each ligand allowed to determine an "average" binding site in which all the low energy conformers of known and prospective drugs were docked and classified according to a statistical index. The whole procedure was repeated exploiting the lately published structure of an actual G protein coupled receptor as a better template, thus producing a cavity in the binding site to directly dock the drugs. Corollary validations of the force fields used are also mentioned. In addition intra- and intermolecular interactions suitable to produce more active drugs were evaluated.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 1998, 2, 4; 563-581
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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