dorsal/arxiv
View SchemaConformational properties of neutral and charged alanine and glycine chains
| Authors | Alexander V. Yakubovitch, Ilia A. Solov'yov, Andrey V. Solov'yov, Walter Greiner |
|---|---|
| Categories | |
| ArXiv ID | physics/0406093 |
| URL | https://arxiv.org/abs/physics/0406093 |
Abstract
We have investigated the potential energy surface for neutral and charged alanine and glycine chains consisting of up to 6 amino acids. For these molecules we have calculated potential energy surfaces as a function of the Ramachandran angles phi and psi. Our calculations are performed within it ab initio theoretical framework based on the density functional theory and also within semi-empirical model approaches. We have demonstrated that the excessive positive charge of the system influences strongly its geometrical and conformational properties. With increasing of the excessive charge amino acid chains become unstable and decay into two or more fragments. We have analysed how the secondary structure of polypeptide chains influences the formation of the potential energy landscapes. We have calculated the energy barriers for transitions between different molecular conformations and determined the ones being energetically the most favourable.
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"date_created": "2026-03-02T18:00:50.273000Z",
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"abstract": "We have investigated the potential energy surface for neutral and charged\nalanine and glycine chains consisting of up to 6 amino acids. For these\nmolecules we have calculated potential energy surfaces as a function of the\nRamachandran angles phi and psi. Our calculations are performed within it ab\ninitio theoretical framework based on the density functional theory and also\nwithin semi-empirical model approaches. We have demonstrated that the excessive\npositive charge of the system influences strongly its geometrical and\nconformational properties. With increasing of the excessive charge amino acid\nchains become unstable and decay into two or more fragments. We have analysed\nhow the secondary structure of polypeptide chains influences the formation of\nthe potential energy landscapes. We have calculated the energy barriers for\ntransitions between different molecular conformations and determined the ones\nbeing energetically the most favourable.",
"arxiv_id": "physics/0406093",
"authors": [
"Alexander V. Yakubovitch",
"Ilia A. Solov\u0027yov",
"Andrey V. Solov\u0027yov",
"Walter Greiner"
],
"categories": [
"physics.atm-clus"
],
"title": "Conformational properties of neutral and charged alanine and glycine chains",
"url": "https://arxiv.org/abs/physics/0406093"
},
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