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20 April 2024 |
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Article overview
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An all D-amino acid opioid peptide with central analgesic activity from a combinatorial library | C T Dooley
; N N Chung
; B C Wilkes
; P W Schiller
; J M Bidlack
; G W Pasternak
; R A Houghten
; | Date: |
23 Dec 1994 | Journal: | Science, 266 (5193), 2019-22 | Abstract: | A synthetic combinatorial library containing 52,128,400 D-amino acid hexapeptides was used to identify a ligand for the mu opioid receptor. The peptide, Ac-rfwink-NH2, bears no resemblance to any known opioid peptide. Simulations using molecular dynamics, however, showed that three amino acid moieties have the same spatial orientation as the corresponding pharmacophoric groups of the opioid peptide PLO17. Ac-rfwink-NH2 was shown to be a potent agonist at the mu receptor and induced long-lasting analgesia in mice. Analgesia produced by intraperitoneally administered Ac-rfwink-NH2 was blocked by intracerebroventricular administration of naloxone, demonstrating that this peptide may cross the blood-brain barrier. | Source: | PubMed, pmid7801131 | Services: | Forum | Review | Favorites |
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