7WVY image
Entry Detail
PDB ID:
7WVY
EMDB ID:
Title:
Cryo-EM structure of the human formyl peptide receptor 2 in complex with Abeta42 and Gi2
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2022-02-11
Release Date:
2022-04-13
Method Details:
Experimental Method:
Resolution:
3.00 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(i) subunit alpha-2
Mutations:S47N, G204A, A327S, E246A
Chain IDs:C (auth: A)
Chain Length:355
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Chain IDs:D (auth: B)
Chain Length:351
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Chain IDs:E (auth: C)
Chain Length:71
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Amyloid-beta A4 protein
Chain IDs:A (auth: L)
Chain Length:42
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Description:Soluble cytochrome b562,N-formyl peptide receptor 2
Mutations:S211L
Chain IDs:B (auth: R)
Chain Length:513
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Structural basis of FPR2 in recognition of A beta 42 and neuroprotection by humanin.
Nat Commun 13 1775 1775 (2022)
PMID: 35365641 DOI: 10.1038/s41467-022-29361-x

Abstact

Formyl peptide receptor 2 (FPR2) has been shown to mediate the cytotoxic effects of the β amyloid peptide Aβ42 and serves as a receptor for humanin, a peptide that protects neuronal cells from damage by Aβ42, implying its involvement in the pathogenesis of Alzheimer's disease (AD). However, the interaction pattern between FPR2 and Aβ42 or humanin remains unknown. Here we report the structures of FPR2 bound to Gi and Aβ42 or N-formyl humanin (fHN). Combined with functional data, the structures reveal two critical regions that govern recognition and activity of Aβ42 and fHN, including a polar binding cavity within the receptor helical bundle and a hydrophobic binding groove in the extracellular region. In addition, the structures of FPR2 and FPR1 in complex with different formyl peptides were determined, providing insights into ligand recognition and selectivity of the FPR family. These findings uncover key factors that define the functionality of FPR2 in AD and other inflammatory diseases and would enable drug development.

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Primary Citation of related structures