1. Affinity labeling of δ-opiate receptors using [D-Ala2,Leu5,Cys6]enkephalin: Covalent attachment via thiol-disulfide exchange;Bowen;J. Biol. Chem.,1987
2. Deltorphins: A family of naturally occurring peptides with high affinity and selectivity for δ opioid binding sites;Erspamer,1989
3. Tyr-D-Ser-Gly-Gly-Phe-Leu-Thr, a highly preferential ligand for δ opiate receptors;Gacel;FEBS Lett.,1980
4. Differential antagonism of opioid delta antinociception by [D-Ala2,Leu5,Cys6]enkephalin and naltrindole 5′-isothiocynate: Evidence for delta receptor subtypes;Jiang;J. Pharmacol. Exp. Ther.,1991
5. Bis-penicillamine enkephalins show pronounced delta receptor selectivity;Mosberg,1983