8FD7 image
Entry Detail
PDB ID:
8FD7
EMDB ID:
EMD-29004
Keywords:
MEMBRANE PROTEIN
Title:
Structure of the human L-type voltage-gated calcium channel Cav1.2 complexed with gabapentin
Biological Source:
Source Organism:
Oryctolagus cuniculus, Homo sapiens
Host Organism:
Homo sapiens
PDB Version:
Deposition Date:
2022-12-02
Release Date:
2023-03-22
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.10 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8FD7 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:Voltage-dependent L-type calcium channel subunit beta-3
Chain IDs:C
Chain Length:477
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:P54286 Pfam ID:PF12052, PF00625
Protein Blast
Polymer Type:polypeptide(L)
Description:Voltage-dependent calcium channel subunit alpha-2/delta-1
Chain IDs:A (auth: D)
Chain Length:1105
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:P13806 Pfam ID:PF08399, PF00092, PF08473
Protein Blast
Polymer Type:polypeptide(L)
Description:Voltage-dependent L-type calcium channel subunit alpha-1C
Chain IDs:B (auth: K)
Chain Length:1648
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q13936 Pfam ID:PF00520, PF08016, PF16905, PF08763
Ligand Molecules
CA
CLR
GBN
NA
NAG
WO9
YSW
Primary Citation
Structural basis for Ca V alpha 2 delta :gabapentin binding.
Nat.Struct.Mol.Biol. 30 735 739 (2023)
PMID: 36973510 DOI: 10.1038/s41594-023-00951-7

Abstact

Gabapentinoid drugs for pain and anxiety act on the CaVα2δ-1 and CaVα2δ-2 subunits of high-voltage-activated calcium channels (CaV1s and CaV2s). Here we present the cryo-EM structure of the gabapentin-bound brain and cardiac CaV1.2/CaVβ3/CaVα2δ-1 channel. The data reveal a binding pocket in the CaVα2δ-1 dCache1 domain that completely encapsulates gabapentin and define CaVα2δ isoform sequence variations that explain the gabapentin binding selectivity of CaVα2δ-1 and CaVα2δ-2.

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Primary Citation of related structures
8FD7