{{Rsnum
|rsid=2236707
|Gene=NPC1
|Chromosome=18
|position=23535033
|Orientation=minus
|GMAF=0.359
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=NPC1
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 24.0 | 50.0 | 26.0
| HCB | 14.3 | 50.0 | 35.7
| JPT | 27.5 | 55.0 | 17.5
| YRI | 0.0 | 8.8 | 91.2
| ASW | 0.0 | 0.0 | 0.0
| CHB | 14.3 | 50.0 | 35.7
| 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
|PMID=20571217
|Title=Epistasis Between Intracellular Cholesterol Trafficking-Related Genes (NPC1 and ABCA1) and Alzheimer's Disease Risk
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}