Can Helical Peptides Unwind One Turn at a Time? - Controlled Conformational Transitions in α,β<sup>2,3</sup>-Hybrid Peptides
作者:Dhayalan Balamurugan、Kannoth M. Muraleedharan
DOI:10.1002/chem.201501198
日期:2015.6.22
Unfolding of helical trans‐β2,3‐hybrid peptides with (α–β)nα composition, when executed by increasing solvent polarity or temperature, proceeded in a systematic manner with the turns unwinding sequentially; C‐terminal region of these peptides were first to unwind and the process propagated towards N terminus with more and more β residues equilibrating from the gauche to the anti rotameric state across
螺旋的解折叠反式-β 2,3与(α-β)-hybrid肽Ñ α组合物中,当通过增加溶剂极性或温度,与匝顺序开卷以系统的方式进行执行; 这些肽的C末端区是第一个退绕并传播向N末端与越来越多的β残基从平衡过程笨拙的抗C两端旋转异构体状态α Ç β。这是通过在它们的C明确变化来证明β H信号分裂,3 Ĵ CαH-CβH值,并且顺序消失我,我+2个NOE。