{{Rsnum
|rsid=1868402
|Gene=PPP3R1
|Chromosome=2
|position=68181905
|Orientation=minus
|GMAF=0.2507
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=PPP3R1
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 6.2 | 47.8 | 46.0
| HCB | 10.4 | 45.9 | 43.7
| JPT | 21.4 | 47.3 | 31.2
| YRI | 0.0 | 0.0 | 100.0
| ASW | 1.8 | 10.5 | 87.7
| CHB | 10.4 | 45.9 | 43.7
| CHD | 13.9 | 50.9 | 35.2
| GIH | 5.0 | 18.8 | 76.2
| LWK | 0.0 | 1.8 | 98.2
| MEX | 5.2 | 31.0 | 63.8
| MKK | 1.3 | 5.1 | 93.6
| TSI | 6.9 | 44.1 | 49.0
| HapMapRevision=28
}}The C allele of this SNP may be associated with rate of progression of [[Alzheimer's disease]], according to an article in [http://www.plosgenetics.org/article/info%3Adoi%2F10.1371%2Fjournal.pgen.1001101 PLoS Genetics]. It does not appear to affect risk or age of onset.
{{PMID Auto
|PMID=20862329
|Title=SNPs Associated with Cerebrospinal Fluid Phospho-Tau Levels Influence Rate of Decline in Alzheimer's Disease
|OA=1
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | FTDNA}}
{{on chip | Illumina Human 1M}}