9FAR: Gamma2 subunit of GABA(A)R

CryoEM structure of gamma2 subunit of GABA(A)R in complex with GARLH4, the TMD of Neuroligin2 from a closed state, obtained by focused refinement. Determined by electron microscopy at 2.9 Å resolution. Released 2 Jul 2025.

Method
Electron microscopy
Resolution
2.9 Å
Organism
Homo sapiens
Chains
3
Atoms
2,345
Mol. weight
34.47 kDa
Ligands
PLM, CLR, D10, PGW
Released
2 Jul 2025

Explore 9FAR in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9FAR contains 12 α-helices and 9 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain C: 3 helices, 0 β-strands

ElementResiduesLengthSheet
α-helix375-3784
α-helix402-42322
α-helix424-4285
Chain H: 1 helix, 0 β-strands
ElementResiduesLengthSheet
α-helix673-69826
Chain L: 8 helices, 9 β-strands
ElementResiduesLengthSheet
α-helix12-4231
β-strand47-4821
β-strand57-5931
β-strand64-6631
β-strand76-7831
β-strand8012
β-strand8312
α-helix84-863
α-helix90-11223
α-helix113-1164
α-helix121-14525
α-helix146-1516
α-helix153-1597
β-strand16413
β-strand16713
β-strand172-17321
α-helix175-20228

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Isoform 2 of Gamma-aminobutyric acid receptor subunit gamma-2Cprotein61Homo sapiensP18507 (AlphaFold model)
Neuroligin-2Hprotein33Homo sapiensQ8NFZ4 (AlphaFold model)
LHFPL tetraspan subfamily member 4 proteinLprotein193Homo sapiensQ7Z7J7 (AlphaFold model)
Sequence of entity 1 (C), FASTA
>9FAR_1 Isoform 2 of Gamma-aminobutyric acid receptor subunit gamma-2 (chains C)
CLDGKDCASFFCCFEDCRTGAWRHGRIHIRIAKMDSYARIFFPTAFCLFNLVYWVSYLYL
G
Sequence of entity 2 (H), FASTA
>9FAR_2 Neuroligin-2 (chains H)
DSRDYSTELSVTVAVGASLLFLNILAFAALYYK
Sequence of entity 3 (L), FASTA
>9FAR_3 LHFPL tetraspan subfamily member 4 protein (chains L)
YHEHYMRNSRAIGVLWAIFTICFAIINVVVFIQPYWVGDSVSTPKPGYFGLFHYCVGSGL
AGRELTCRGSFTDFSTIPSSAFKAAAFFVLLSMVLILGCITCFSLFFFCNTATVYKICAW
MQLLAALCLVLGCMIFPDGWDAETIRDMCGAKTGKYSLGDCSVRWAYILAIIGILNALIL
SFLAFVLGNRQTD

Ligands and cofactors

IDNameFormulaCopies
PLMPalmitic acidC16 H32 O21
CLRCholesterolC27 H46 O1
D10DecaneC10 H221
PGW(1R)-2-{[(S)-{[(2S)-2,3-dihydroxypropyl]oxy}(hydroxy)phosphoryl]oxy}-1-[(hexade…C40 H77 O10 P1

Water and common crystallization additives (CL) are not listed.

Primary citation

CryoEM structure of gamma2 subunit of GABA(A)R in complex with GARLH4, the TMD of Neuroligin2 from a closed state, obtained by focused refinement. Kasaragod, V.B., Aricescu, A.R. To be published.

Other PDB entries of the same protein (UniProt P18507 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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