Phys. Rev. Lett. 80, 5691–5694 (1998)Helix-Coil Transition and 1/f Fluctuation in a PolypeptideReceived 14 July 1997; published in the issue dated 22 June 1998 We report on molecular dynamics simulations of the helix-coil transition of a polypeptide. The simulated transition was two-state-like and similar to the solid-liquid-like transition that has been observed in computer simulations of an atomic cluster. At the transition temperature, the polypeptide chain fluctuated between a helical and a random-coil state, and we observed 1/f fluctuation through potential-energy fluctuations. The origin of the observed 1/f fluctuation is discussed, considering the underlying potential-energy landscape. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.5691
DOI:
10.1103/PhysRevLett.80.5691
PACS:
87.15.He, 05.40.+j, 64.70.Dv
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.