{{Rsnum
|rsid=9975851
|Chromosome=21
|position=26344335
|Orientation=plus
|GMAF=0.4224
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 18.5 | 56.9 | 24.6
| HCB | 2.2 | 28.9 | 68.9
| JPT | 6.7 | 42.2 | 51.1
| YRI | 38.1 | 44.4 | 17.5
| ASW | 0.0 | 0.0 | 0.0
| CHB | 2.2 | 28.9 | 68.9
| 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
}}{{PMID Auto GWAS
  |PMID=22837378
  |Trait=Airflow obstruction
  |Title=Genome-wide association studies identify CHRNA5/3 and HTR4 in the development of airflow obstruction.
  |RiskAllele=T
  |Pval=4E-6
  |OR=1.17
  |ORtxt=[NR]
  |OA=1
}}