期刊
CHEMICAL PHYSICS LETTERS
卷 501, 期 1-3, 页码 30-32出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2010.10.064
关键词
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资金
- ICGEB [CRP/HUN08-03]
- Hungarian Scientific Research Fund [OTKA K72973, NK67800, NI-68466]
- European Union
- European Social Fund [TAMOP 4.2.1./B-09/KMR-2010-0003]
- Bolyai postdoctoral fellowship
Statistical mechanical principles are used to derive the approximate relationship of c(1) + c(2)ln(n) + c(3)n for the entropy of homo-oligo peptides with n residues, where c(1), c(2) and c(3) are constants for a specific polypeptide chain. The relationship is tested in the range 1 <= n <= 34 against entropy data derived from electron structure calculations completed both at the Hartree-Fock and the density functional levels of theory. We have found that the above equation provides a good representation of the entropy of oligoglycine and oligoalanine model systems when they fold from an extended-like to a helical conformation. (C) 2010 Elsevier B. V. All rights reserved.
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