{{Rsnum
|rsid=251379
|Gene=PCDHA9
|Chromosome=5
|position=140879337
|Orientation=plus
|GMAF=0.3682
|Gene_s=PCDHA1,PCDHA2,PCDHA3,PCDHA4,PCDHA5,PCDHA6,PCDHA7,PCDHA8,PCDHA9,PCDHA10,PCDHA11,PCDHA12
|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 | 10.6 | 54.9 | 34.5
| HCB | 31.1 | 42.2 | 26.7
| JPT | 29.5 | 41.1 | 29.5
| YRI | 4.8 | 38.1 | 57.1
| ASW | 7.0 | 36.8 | 56.1
| CHB | 31.1 | 42.2 | 26.7
| CHD | 26.6 | 51.4 | 22.0
| GIH | 7.9 | 53.5 | 38.6
| LWK | 3.6 | 41.8 | 54.5
| MEX | 13.8 | 58.6 | 27.6
| MKK | 3.2 | 35.9 | 60.9
| TSI | 11.8 | 46.1 | 42.2
| HapMapRevision=28
}}{{PMID Auto
|PMID=23031252
|Title=Protocadherin α (PCDHA) as a novel susceptibility gene for autism
|OA=1
}}

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