Structural studies of a bifunctional inhibitor of neprilysin and DPP-IV.
Oefner, C., Pierau, S., Schulz, H., Dale, G.E.(2007) Acta Crystallogr D Biol Crystallogr 63: 975-981
- PubMed: 17704566 
- DOI: https://doi.org/10.1107/S0907444907036281
- Primary Citation of Related Structures:  
2QPJ - PubMed Abstract: 
Neutral endopeptidase (NEP) is the major enzyme involved in the metabolic inactivation of a number of bioactive peptides including the enkephalins, substance P, endothelin, bradykinin and atrial natriuretic factor, as well as the incretin hormone glucagon-like peptide 1 (GLP-1), which is a potent stimulator of insulin secretion. The activity of GLP-1 is also rapidly abolished by the serine protease dipeptidyl peptidase IV (DPP-IV), which led to an elevated interest in inhibitors of this enzyme for the treatment of type II diabetes. A dual NEP/DPP-IV inhibitor concept is proposed, offering an alternative strategy for the treatment of type 2 diabetes. Here, the synthesis and crystal structures of the soluble extracellular domain of human NEP (residues 52-749) complexed with the NEP, competitive and potent dual NEP/DPP-IV inhibitor MCB3937 are described.
Organizational Affiliation: 
Morphochem AG, CH-4058, Basel, Switzerland.