6pt3

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Crystal structure of the active delta opioid receptor in complex with the small molecule agonist DPI-287

Structural highlights

6pt3 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.3Å
Ligands:OWY
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

OPRD_HUMAN G-protein coupled receptor that functions as a receptor for endogenous enkephalins and for a subset of other opioids. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling leads to the inhibition of adenylate cyclase activity. Inhibits neurotransmitter release by reducing calcium ion currents and increasing potassium ion conductance. Plays a role in the perception of pain and in opiate-mediated analgesia. Plays a role in developing analgesic tolerance to morphine.[1] [2] [3]

Publication Abstract from PubMed

Selective activation of the delta-opioid receptor (DOP) has great potential for the treatment of chronic pain, benefitting from ancillary anxiolytic and antidepressant-like effects. Moreover, DOP agonists show reduced adverse effects as compared to mu-opioid receptor (MOP) agonists that are in the spotlight of the current "opioid crisis." Here, we report the first crystal structures of the DOP in an activated state, in complex with two relevant and structurally diverse agonists: the potent opioid agonist peptide KGCHM07 and the small-molecule agonist DPI-287 at 2.8 and 3.3 A resolution, respectively. Our study identifies key determinants for agonist recognition, receptor activation, and DOP selectivity, revealing crucial differences between both agonist scaffolds. Our findings provide the first investigation into atomic-scale agonist binding at the DOP, supported by site-directed mutagenesis and pharmacological characterization. These structures will underpin the future structure-based development of DOP agonists for an improved pain treatment with fewer adverse effects.

Elucidating the active delta-opioid receptor crystal structure with peptide and small-molecule agonists.,Claff T, Yu J, Blais V, Patel N, Martin C, Wu L, Han GW, Holleran BJ, Van der Poorten O, White KL, Hanson MA, Sarret P, Gendron L, Cherezov V, Katritch V, Ballet S, Liu ZJ, Muller CE, Stevens RC Sci Adv. 2019 Nov 27;5(11):eaax9115. doi: 10.1126/sciadv.aax9115. eCollection, 2019 Nov. PMID:31807708[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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Citations
18 reviews cite this structure
Biased Opioid Ligands.
Faouzi et al. (2020)
17 more
25 other articles
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See Also

References

  1. ↑ Leskela TT, Lackman JJ, Vierimaa MM, Kobayashi H, Bouvier M, Petaja-Repo UE. Cys-27 variant of human delta-opioid receptor modulates maturation and cell surface delivery of Phe-27 variant via heteromerization. J Biol Chem. 2012 Feb 10;287(7):5008-20. doi: 10.1074/jbc.M111.305656. Epub 2011 , Dec 19. PMID:22184124 doi:http://dx.doi.org/10.1074/jbc.M111.305656
  2. ↑ Simonin F, Befort K, Gaveriaux-Ruff C, Matthes H, Nappey V, Lannes B, Micheletti G, Kieffer B. The human delta-opioid receptor: genomic organization, cDNA cloning, functional expression, and distribution in human brain. Mol Pharmacol. 1994 Dec;46(6):1015-21. PMID:7808419
  3. ↑ Knapp RJ, Malatynska E, Fang L, Li X, Babin E, Nguyen M, Santoro G, Varga EV, Hruby VJ, Roeske WR, et al.. Identification of a human delta opioid receptor: cloning and expression. Life Sci. 1994;54(25):PL463-9. PMID:8201839
  4. ↑ Claff T, Yu J, Blais V, Patel N, Martin C, Wu L, Han GW, Holleran BJ, Van der Poorten O, White KL, Hanson MA, Sarret P, Gendron L, Cherezov V, Katritch V, Ballet S, Liu ZJ, Muller CE, Stevens RC. Elucidating the active delta-opioid receptor crystal structure with peptide and small-molecule agonists. Sci Adv. 2019 Nov 27;5(11):eaax9115. doi: 10.1126/sciadv.aax9115. eCollection, 2019 Nov. PMID:31807708 doi:http://dx.doi.org/10.1126/sciadv.aax9115

Contents


PDB ID 6pt3

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OCA

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