Recognition and stabilization of peptide alpha-helices using templatable nanoparticle receptors.
alpha-Helices are important structural elements in proteins. To provide a scaffold for the facial recognition of peptides, we have explored the interaction of cationic mixed monolayer protected clusters (MMPCs) with a tetra-aspartate peptide in water. In these studies, substantial enhancement of peptide helicity was observed upon addition of the MMPC. Significantly, this stabilization increased with time, demonstrating templation of the monolayer to the peptide helix.
Verma
Ayush
A
Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA.
Nakade
Hiroshi
H
Simard
Joseph M
JM
Rotello
Vincent M
VM
D006046:Gold / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D010455:Peptides / Q000737:chemistry*; D017433:Protein Structure, Secondary; D018000:Receptors, Peptide / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
D010455:Peptides; D018000:Receptors, Peptide; C017645:polyaspartate; D006046:Gold