{{Rsnum
|rsid=2821557
|Gene=KCNA3
|Chromosome=1
|position=110676298
|Orientation=plus
|GMAF=0.4146
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=KCNA3
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 20.4 | 55.8 | 23.9
| HCB | 33.6 | 46.0 | 20.4
| JPT | 32.7 | 47.8 | 19.5
| YRI | 5.4 | 34.7 | 59.9
| ASW | 7.0 | 45.6 | 47.4
| CHB | 33.6 | 46.0 | 20.4
| CHD | 42.2 | 43.1 | 14.7
| GIH | 21.8 | 52.5 | 25.7
| LWK | 0.9 | 30.0 | 69.1
| MEX | 15.5 | 56.9 | 27.6
| MKK | 3.8 | 34.6 | 61.5
| TSI | 14.7 | 49.0 | 36.3
| HapMapRevision=28
}}{{PMID|19489042}} [[rs2821557]] a loss of olfactory function with age. a significant correlation of olfactory dysfunction with higher HbA1c and fasting plasma glucose

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}