6JOD image
Entry Detail
PDB ID:
6JOD
Title:
Angiotensin II type 2 receptor with ligand
Biological Source:
PDB Version:
Deposition Date:
2019-03-20
Release Date:
2020-01-15
Method Details:
Experimental Method:
Resolution:
3.20 Å
R-Value Free:
0.28
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
C 2 2 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Type-2 angiotensin II receptor
Mutations:S208A
Chain IDs:A
Chain Length:312
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Angiotensin II
Chain IDs:B
Chain Length:8
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Soluble cytochrome b562,Soluble cytochrome b562
Mutations:M1007W,R1098I,H1102I,R1106G
Chain IDs:C
Chain Length:86
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Description:Heavy chain of 4A03Fab
Chain IDs:D (auth: H)
Chain Length:220
Number of Molecules:1
Biological Source:Mus musculus
Polymer Type:polypeptide(L)
Description:Light chain of 4A03Fab
Chain IDs:E (auth: L)
Chain Length:212
Number of Molecules:1
Biological Source:Mus musculus
Ligand Molecules
Primary Citation
The Crystal Structure of Angiotensin II Type 2 Receptor with Endogenous Peptide Hormone.
Structure 28 418 ? (2020)
PMID: 31899086 DOI: 10.1016/j.str.2019.12.003

Abstact

Angiotensin II (AngII) is a peptide hormone that plays a key role in regulating blood pressure, and its interactions with the G protein-coupled receptors, AngII type-1 receptor (AT1R) and AngII type-2 receptor (AT2R), are central to its mechanism of action. We solved the crystal structure of human AT2R bound to AngII and its specific antibody at 3.2-Å resolution. AngII (full agonist) and [Sar1, Ile8]-AngII (partial agonist) interact with AT2R in a similar fashion, except at the bottom of the AT2R ligand-binding pocket. In particular, the residues including Met1283.36, which constitute the deep end of the cavity, play important roles in angiotensin receptor (ATR) activation upon AngII binding. These differences that occur upon endogenous ligand binding may contribute to a structural change in AT2R, leading to normalization of the non-canonical coordination of helix 8. Our results will inform the design of more effective ligands for ATRs.

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Primary Citation of related structures