{{Rsnum
|rsid=2510344
|Gene=NPC1
|Chromosome=18
|position=23533321
|Orientation=minus
|GMAF=0.4692
|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 | 20.4 | 54.0 | 25.7
| HCB | 16.2 | 43.4 | 40.4
| JPT | 6.3 | 41.4 | 52.3
| YRI | 24.1 | 55.9 | 20.0
| ASW | 26.3 | 54.4 | 19.3
| CHB | 16.2 | 43.4 | 40.4
| CHD | 9.2 | 48.6 | 42.2
| GIH | 17.8 | 56.4 | 25.7
| LWK | 27.5 | 47.7 | 24.8
| MEX | 31.6 | 36.8 | 31.6
| MKK | 28.4 | 45.8 | 25.8
| TSI | 46.1 | 42.2 | 11.8
| 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 | Affy GenomeWide 6}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}