Structure of Peptides and Proteins
   
   

 

The purpose of our research is the conformational analysis and 3-D structural elucidation of peptides and proteins of biological interest. Our range goes from small cyclic depsipeptides of less than 10 residues to proteolitic enzymes of more than 70.000 Da of molecular weight. We use a variety of instrumental and computational tools with a special focus however, on the use of high-field nuclear magnetic resonance.

         
               
  Molecular Recognition
 
   
Our main interest is the design and synthesis of peptide molecules that are able to recognize specific hot-spots at protein surfaces. We use this knowledge to modulate protein-protein interactions. From a methodological point of view we use computational tools, mainly genetic algorithms, combinatorial chemistry, high-field NMR and mass-spectrometry.
   
   
     
  Peptides as Potential Therapeutic Agents
   
     
The use of peptides as therapeutic agents has still more drawbacks than advantages. However, we think that they can still be used in the design of drugs that are involved in protein-protein recognition events. Our activity in this area is focused on: the optimization of peptide ADME properties (specially blood brain barrier permeability), the discovery of new drug delivery systems (proline-rich peptides for intracellular drug delivery), the development of inhibitors of amyloid formation (beta amyloid peptide from Alzheimer disease) and the discovery of POP inhibitors (schizophrenia and bipolar disorders). More recently we have started a new area of research addressing the use of peptides in Nanomedicine.