β-Branched Amino Acids Stabilize Specific Conformations of Cyclic Hexapeptides.

ABSTRACT: Cyclic peptides (CPs) are a promising class of molecules for drug development, particularly as inhibitors of protein-protein interactions. Predicting low-energy structures and global structural ensembles of individual CPs is critical for the design of bioactive molecules, but these are challenging to predict and difficult to verify experimentally. In our previous work, we used explicit-solvent molecular dynamics simulations with enhanced sampling methods to predict the global structural ensembles of cyclic hexapeptides containing different permutations of glycine, alanine, and valine. One peptide, cyclo-(VVGGVG) or P7, was predicted to be unusually well structured. In this work, we synthesized P7, along with a less well-structured control peptide, cyclo-(VVGVGG) or P6, and characterized th

SUBMITTER: Cummings AE 

PROVIDER: S-EPMC6369414 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature