4RWD image
Deposition Date 2014-12-02
Release Date 2015-01-14
Last Version Date 2024-11-20
Entry Detail
PDB ID:
4RWD
Title:
XFEL structure of the human delta opioid receptor in complex with a bifunctional peptide
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.70 Å
R-Value Free:
0.23
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
C 1 2 1
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Soluble cytochrome b562,Delta-type opioid receptor
Gene (Uniprot):cybC
Mutagens:M29W, H124I, R138L,M29W, H124I, R138L
Chain IDs:A, B
Chain Length:411
Number of Molecules:2
Biological Source:Escherichia coli, Homo sapiens
Polymer Type:polypeptide(L)
Molecule:bifunctional peptide
Chain IDs:C (auth: G), D (auth: H)
Chain Length:5
Number of Molecules:2
Biological Source:synthetic construct
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
DI7 C TYR 2,6-DIMETHYL-L-TYROSINE
Peptide-like Molecules
PRD_001256
Primary Citation

Abstact

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-NH2 (DIPP-NH2) 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.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
Feedback Form
Name
Email
Institute
Feedback