Unprecedented Torsional Preferences in trans-β2,3-Amino Acid Residues and Formation of 11-Helices in α,β2,3-Hybrid Peptides
作者:Dhayalan Balamurugan、Kannoth M. Muraleedharan
DOI:10.1002/chem.201201415
日期:2012.7.27
Anti or gauche? trans‐β2,3‐Amino acid residues that are known to promote extended structures in their peptides show specific rotamer preferences in response to an intramolecular hydrogen‐bonding possibility, which facilitates the 11‐helical structures in their 1:1 α,β‐hybrid peptides (see figure). Preferences for the gauche conformation for all internal β residues and anti for the C‐terminal residue