Quanta of Local Conformational Change: Conformons in alpha-helical proteins
arXiv:0906.0456 · doi:10.1088/1367-2630/12/5/055003
Abstract
We propose the conformon as a quantum of conformational change for energy transfer in alpha-helical proteins. The underlying mechanism of interaction between the quantum of excitation and the conformational degrees of freedom is nonlinear and leads to solitary wave packets of conformational energy. The phenomenon is specific to alpha-helices and not to beta-sheets in proteins due to the three strands of hydrogen bonds constituting the alpha-helical backbone.