P08219: Gamma-aminobutyric acid receptor subunit alpha-1 (GABRA1)

Gamma-aminobutyric acid receptor subunit alpha-1 (GABRA1) is a 456-residue protein from Bos taurus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P08219.

Gene
GABRA1
Organism
Bos taurus
Length
456 residues
Mean pLDDT
82.1
Model
AF-P08219-F1 v6
Model created
1 Aug 2025
PDB structures
2

Explore in 3D Color by confidence AlphaFold DB UniProt

Model confidence (pLDDT)

The mean pLDDT of this model is 82.1 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate66%
70 to 90Confident: backbone generally right10%
50 to 70Low: treat with caution8%
Below 50Very low: often disordered regions16%

What pLDDT means and how to read it

Function

Alpha subunit of the heteropentameric ligand-gated chloride channel gated by gamma-aminobutyric acid (GABA), a major inhibitory neurotransmitter in the brain. GABA-gated chloride channels, also named GABA(A) receptors (GABAAR), consist of five subunits arranged around a central pore and contain GABA active binding site(s) located at the alpha and beta subunit interface(s) (PubMed:3037384). When activated by GABA, GABAARs selectively allow the flow of chloride anions across the cell membrane down their electrochemical gradient (PubMed:3037384). Alpha-1/GABRA1-containing GABAARs are largely synaptic (By similarity). Chloride influx into the postsynaptic neuron following GABAAR opening…

Subunit structure

Heteropentamer, formed by a combination of alpha (GABRA1-6), beta (GABRB1-3), gamma (GABRG1-3), delta (GABRD), epsilon (GABRE), rho (GABRR1-3), pi (GABRP) and theta (GABRQ) subunits, each subunit exhibiting distinct physiological and pharmacological properties (PubMed:3037384). Interacts with UBQLN1 (By similarity). Interacts with TRAK1 (By similarity). Interacts with KIF21B (By similarity).…

Subcellular location

Postsynaptic cell membrane, Cell membrane, Cytoplasmic vesicle membrane

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
6HUJEM3.04 ÅA/D=2-27
6HUOEM3.26 ÅA/D=2-27

More AlphaFold highlights

About this viewer

MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.