{{Rsnum
|rsid=16997087
|Chromosome=20
|position=16074337
|Orientation=plus
|GMAF=0.06244
|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 | 0.9 | 10.6 | 88.5
| HCB | 0.7 | 17.5 | 81.8
| JPT | 0.0 | 14.3 | 85.7
| YRI | 0.0 | 0.0 | 100.0
| ASW | 0.0 | 5.3 | 94.7
| CHB | 0.7 | 17.5 | 81.8
| CHD | 0.0 | 13.8 | 86.2
| GIH | 0.0 | 12.9 | 87.1
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 15.5 | 84.5
| MKK | 0.0 | 3.8 | 96.2
| TSI | 1.0 | 15.7 | 83.3
| HapMapRevision=28
}}{{PMID Auto GWAS
  |PMID=23471985
  |Trait=Brain connectivity
  |Title=Genome-wide scan of healthy human connectome discovers SPON1 gene variant influencing dementia severity.
  |RiskAllele=
  |Pval=1E-10
  |OR=NR
  |ORtxt=NR
  |OA=1
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}
{{on chip | Illumina Human 1M}}