{{Rsnum
|rsid=750841
|Gene=GABRA3
|Chromosome=X
|position=152297246
|Orientation=plus
|GMAF=0.2346
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;T)
|geno3=(T;T)
|Gene_s=GABRA3
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;T)
| geno3=(T;T)
| CEU | 9.2 | 9.2 | 81.5
| HCB | 22.2 | 11.1 | 66.7
| JPT | 18.2 | 22.7 | 59.1
| YRI | 28.6 | 27.0 | 44.4
| ASW | 0.0 | 0.0 | 0.0
| CHB | 22.2 | 11.1 | 66.7
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}influences the risk of thyrotoxic hypokalaemic periodic paralysis

{{PMID|17970773}} [[rs750841]] (A > T) in intron 3 of the gamma-aminobutyric acid (GABA) receptor alpha3 subunit (GABRA3) gene possessed the most significant difference in allele frequency (27% in THPP case and 5% in controls, P = 0.007). Actual allele frequencies obtained from genotyping in each individual were very similar to the estimated frequency from the pools (28% in THPP and 2% in controls, and P = 0.0002). Nearby DNA sequences of GABRA3 were sequenced and an additional two SNPs were found (A > C at exon 1 and G > T of [[rs12688128]]). Allele A of [[rs750841]] and allele G of rs12688128 in intron 3 were predominantly found in THPP with significant genetic relative risk of 19 (P < 0.0002; 95%CI 2.4-151.6).

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | HumanOmni1Quad}}