The Dominant Folding Route Minimizes Backbone Distortion in SH3

dc.citation.firstpagee1002776
dc.citation.issueNumber11
dc.citation.journalTitlePLoS Computational Biology
dc.citation.volumeNumber8
dc.contributor.authorLammert, Heiko
dc.contributor.authorNoel, Jeffrey K.
dc.contributor.authorOnuchic, José N.
dc.contributor.orgCenter for Theoretical Biological Physics
dc.date.accessioned2013-01-09T17:56:51Z
dc.date.available2013-01-09T17:56:51Z
dc.date.issued2012
dc.description.abstractEnergetic frustration in protein folding is minimized by evolution to create a smooth and robust energy landscape. As a result the geometry of the native structure provides key constraints that shape protein folding mechanisms. Chain connectivity in particular has been identified as an essential component for realistic behavior of protein folding models. We study the quantitative balance of energetic and geometrical influences on the folding of SH3 in a structure-based model with minimal energetic frustration. A decomposition of the two-dimensional free energy landscape for the folding reaction into relevant energy and entropy contributions reveals that the entropy of the chain is not responsible for the folding mechanism. Instead the preferred folding route through the transition state arises from a cooperative energetic effect. Off-pathway structures are penalized by excess distortion in local backbone configurations and contact pair distances. This energy cost is a new ingredient in the malleable balance of interactions that controls the choice of routes during protein folding.
dc.embargo.termsnone
dc.identifier.citationLammert, Heiko, Noel, Jeffrey K. and Onuchic, José N.. "The Dominant Folding Route Minimizes Backbone Distortion in SH3." <i>PLoS Computational Biology,</i> 8, no. 11 (2012) Public Library of Science: e1002776. http://dx.doi.org/10.1371/journal.pcbi.1002776.
dc.identifier.doihttp://dx.doi.org/10.1371/journal.pcbi.1002776
dc.identifier.urihttps://hdl.handle.net/1911/68523
dc.language.isoeng
dc.publisherPublic Library of Science
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleThe Dominant Folding Route Minimizes Backbone Distortion in SH3
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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