Arashiro, EveraldoFelício, José Roberto Drugowich deHansmann, Ulrich H. E.2012-11-292012-11-292006ARASHIRO, E.; FELÍCIO, J. R. D. de; HANSMANN, U. H. E. Short-time dynamics of helix-coil transition in polypeptides. Physical Review. E, Statistical, Nonlinear and Soft Matter Physics, v. 73, n. 4, p. 40902, abr. 2006. Disponível em: <http://pre.aps.org/pdf/PRE/v73/i4/e040902>. Acesso em: 29 nov. 2012.15502376http://www.repositorio.ufop.br/handle/123456789/1885We study the critical relaxation of the helix-coil transition in all-atom models of polyalanine chains. We show that at the critical temperature the decay of a completely helical conformation can be described by scaling relations that allow us estimating the pertinent critical exponents. The present approach opens a new way for characterizing transitions in proteins and may lead to a better understanding of their folding mechanism. An application of the technique to the 34-residue human parathyroid fragment PTH(1-34) supports universality of the helix-coil transition in homopolymers and (helical) proteins.en-USArtigo publicado em periodicoO periódico Physical Review E permite o depósito da versão PDF do editor em repositório institucional. Fonte: Sherpa/Romeo <http://www.sherpa.ac.uk/romeo/search.php?issn=1539-3755>. Acesso em: 15 dez. 2013.