ISDA

Entry Detail

PDB ID:

4RWD

Keywords:

MEMBRANE PROTEIN

Title:

XFEL structure of the human delta opioid receptor in complex with a bifunctional peptide

Biological Source:

Source Organism:

Escherichia coli, Homo sapiens, synthetic construct

Host Organism:

Spodoptera frugiperda

PDB Version:

Deposition Date:

2014-12-02

Release Date:

2015-01-14

Method Details:

Experimental Method:

X-RAY DIFFRACTION

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

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Soluble cytochrome b562,Delta-type opioid receptor
Mutations:M29W, H124I, R138L,M29W, H124I, R138L
Chain IDs:A, B
Chain Length:411
Number of Molecules:2
Biological Source:Escherichia coli, Homo sapiens

UniProt ID:P0ABE7 Pfam ID:PF07361

Polymer Type:polypeptide(L)
Description: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

Ligand Molecules

OLA

OLC

Peptide-like Molecules

PRD_001256

Primary Citation

Structural basis for bifunctional peptide recognition at human delta-opioid receptor.

Fenalti, G, Zatsepin, N.A, Betti, C, Giguere, P, Han, G.W, Ishchenko, A, Liu, W, Guillemyn, K, Zhang, H, James, D, Wang, D, Weierstall, U, Spence, J.C, Boutet, S, Messerschmidt, M, Williams, G.J, Gati, C, Yefanov, O.M, White, T.A, Oberthuer, D, Metz, M, Yoon, C.H, Barty, A, Chapman, H.N, Basu, S, Coe, J, Conrad, C.E, Fromme, R, Fromme, P, Tourwe, D, Schiller, P.W, Roth, B.L, Ballet, S, Katritch, V, Stevens, R.C, Cherezov, V.Show

Nat.Struct.Mol.Biol. 22 265 268 (2015)

PMID: 25686086 DOI: 10.1038/nsmb.2965

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.

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Primary Citation of related structures