Abstract
Bifunctional μ- and δ-opioid receptor (OR) ligands are potential therapeutic alternatives, with diminished side effects, to alkaloid opiate analgesics. We solved the structure of human δ-OR bound to the bifunctional δ-OR antagonist and μ-OR agonist tetrapeptide H-Dmt-Tic-Phe-Phe-NH 2 (DIPP-NH 2) by serial femtosecond crystallography, revealing a cis-peptide bond between H-Dmt and Tic. The observed receptor-peptide interactions are critical for understanding of the pharmacological profiles of opioid peptides and for development of improved analgesics.
| Original language | English |
|---|---|
| Pages (from-to) | 265-268 |
| Number of pages | 4 |
| Journal | Nature Structural and Molecular Biology |
| Volume | 22 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 6 Mar 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 Nature America, Inc.