Secondary structure prediction of beta-hairpin peptide tryptophan zipper-I
Yazarlar (2)
Prof. Dr. Gökhan GÖKOĞLU Karabük Üniversitesi, Türkiye
Tarık Çelik Turkish Academy Of Sciences, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physica A Statistical Mechanics and Its Applications (Q2)
Dergi ISSN 0378-4371 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 06-2008
Kabul Tarihi Yayınlanma Tarihi 01-06-2008
Cilt / Sayı / Sayfa 387 / 14 / 3537–3545 DOI 10.1016/j.physa.2008.02.065
Makale Linki https://linkinghub.elsevier.com/retrieve/pii/S037843710800246X
UAK Araştırma Alanları
Yoğun Madde Fiziği
Özet
We have investigated the folding properties of tryptophan zipper-I molecule which folds into a stable β-hairpin motif in aqueous solution as suggested by nuclear magnetic resonance (NMR) experiments. An all-atom presentation, including hydrogen, was used with an implicit solvent. As a simulation technique, simulated tempering algorithm was used to obtain equilibrium conformations of the molecule at ten distinct temperatures. Our minimum energy configuration obtained from simulated tempering algorithm is a β-hairpin motif with 1.30 Å backbone root-mean-square deviation from the reference PDB structure (1le0.pdb). Several quantities and exhaustive folding free energy landscapes were determined and discussed in order to clarify the folding behavior.
Anahtar Kelimeler
β-hairpin | Generalized ensembles | Simulated tempering | Tryptophan zipper