Using Structural Information of Peptides, Derived from NMR Spectroscopy, in Pharmaceutical Chemistry

Authors

  • Reto Bader
  • Mirjam Lerch
  • Gerd Folkers
  • Oliver Zerbe

DOI:

https://doi.org/10.2533/chimia.2000.627

Keywords:

Chemical sensors, G-protein coupled receptors, Neuropeptide y, Nmr, Pharmaceutical chemistry

Abstract

The significance of information gained from the solution structure of peptides for pharmaceutical research is demonstrated with two examples: the neuropeptide Y (NPY) hormone system and a undecapeptide designed for use as a chemical sensor. In the case of NPY, the structure of the homodimer and the mode of membrane association was determined. Thereby, it was discovered that the membrane/NPY interface is formed by the same hydrophobic residues that constitute the homodimer interface. Furthermore, in the membrane-bound state, the C-terminal helix is stabilized, which is of special functional importance for the C-terminal tetrapeptide. Receptor-subtype specificity of NPY mutants may be explained through pre-orientation of residues relative to the different membrane compartments. In the case of the undecapeptide designed for use in a chemical sensor, structural information from NMR helped us to design and optimize a peptide whose unligated form is unstructured in solution but adopts a unique helical fold upon addition of sulfate. The sulfate binding pocket is formed by the N-terminal first turn.

Downloads

Published

2000-11-29

Issue

Section

Scientific Articles

How to Cite