ISDA

Deposition Date 2022-04-19

Release Date 2022-08-10

Last Version Date 2025-07-02

Entry Detail

PDB ID:

7XKD

Keywords:

MEMBRANE PROTEIN

Title:

Cryo-EM structure of DHEA-ADGRG2-BT-Gs complex

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)
Camelus bactrianus (Taxon ID: 9837)

Host Organism:

Baculovirus expression vector pFastBac1-HM

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

2.40 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Gene (Uniprot):GNAS
Mutations:S54N, G226A, E268A, N271K, K274D, R280K, T284D, I285T
Chain IDs:A
Chain Length:394
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P63092 Pfam ID:PF00503

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Gene (Uniprot):GNB1
Chain IDs:B
Chain Length:358
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P62873 Pfam ID:PF00400

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Gene (Uniprot):GNG2
Chain IDs:C (auth: G)
Chain Length:58
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P59768 Pfam ID:PF00631

Polymer Type:polypeptide(L)
Molecule:NB35
Chain IDs:D (auth: N)
Chain Length:128
Number of Molecules:1
Biological Source:Camelus bactrianus

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Adhesion G-protein coupled receptor G2
Gene (Uniprot):Adgrg2
Chain IDs:E (auth: R)
Chain Length:303
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q8CJ12 Pfam ID:PF00002

Ligand Molecules

AND

Primary Citation

Structures of the ADGRG2-G s complex in apo and ligand-bound forms.

Lin, H, Xiao, P, Bu, R.Q, Guo, S, Yang, Z, Yuan, D, Zhu, Z.L, Zhang, C.X, He, Q.T, Zhang, C, Ping, Y.Q, Zhao, R.J, Ma, C.S, Liu, C.H, Zhang, X.N, Jiang, D, Huang, S, Xi, Y.T, Zhang, D.L, Xue, C.Y, Yang, B.S, Li, J.Y, Lin, H.C, Zeng, X.H, Zhao, H, Xu, W.M, Yi, F, Liu, Z, Sun, J.P, Yu, X.Show

Nat.Chem.Biol. 18 1196 1203 (2022)

PMID: 35982227 DOI: 10.1038/s41589-022-01084-6

Abstact

Adhesion G protein-coupled receptors are elusive in terms of their structural information and ligands. Here, we solved the cryogenic-electron microscopy (cryo-EM) structure of apo-ADGRG2, an essential membrane receptor for maintaining male fertility, in complex with a Gs trimer. Whereas the formations of two kinks were determinants of the active state, identification of a potential ligand-binding pocket in ADGRG2 facilitated the screening and identification of dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate and deoxycorticosterone as potential ligands of ADGRG2. The cryo-EM structures of DHEA-ADGRG2-Gs provided interaction details for DHEA within the seven transmembrane domains of ADGRG2. Collectively, our data provide a structural basis for the activation and signaling of ADGRG2, as well as characterization of steroid hormones as ADGRG2 ligands, which might be used as useful tools for further functional studies of the orphan ADGRG2.

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Primary Citation of related structures