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Prediction of protein structure using a knowledge-based off-lattice united-residue force field and global optimization methods

✍ Scribed by Adam Liwo; Jarosław Pillardy; Rajmund Kaźmierkiewicz; Ryszard J. Wawak; Małgorzata Groth; Cezary Czaplewski; Stanisaw Ołdziej; Harold A. Scheraga


Publisher
Springer
Year
1999
Tongue
English
Weight
283 KB
Volume
101
Category
Article
ISSN
1432-2234

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United-residue force field for off-latti
✍ Liwo, A.; Ka?mierkiewicz, R.; Czaplewski, C.; Groth, M.; O?dziej, S.; Wawak, R. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 549 KB

Based on the dipole model of peptide groups developed in our w Ž .x earlier work Liwo et al., Prot. Sci., 2, 1697 1993 , a cumulant expansion of the average free energy of the system of freely rotating peptide-group dipoles tethered to a fixed ␣-carbon trace is derived. A graphical approach is prese

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Continuing our work on the determination of an off-lattice united-residue force field for protein-structure simulations, we determined and parameterized appropriate functional forms for the local-interaction terms, Ž . corresponding to the rotation about the virtual bonds U , the bending of

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A two-stage procedure for the determination of a united-residue potential designed for protein simulations is outlined. In the first stage, the long-range and local-interaction energy terms of the total energy of a polypeptide chain are determined by analyzing protein᎐crystal data and averaging the