{{Rsnum
|rsid=819147
|Gene=AHCY
|Chromosome=20
|position=34301898
|Orientation=plus
|GMAF=0.2865
|Gene_s=AHCY
|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 | 1.8 | 19.5 | 78.8
| HCB | 5.1 | 40.9 | 54.0
| JPT | 0.9 | 30.1 | 69.0
| YRI | 65.3 | 32.7 | 2.0
| ASW | 57.9 | 35.1 | 7.0
| CHB | 5.1 | 40.9 | 54.0
| CHD | 6.4 | 37.6 | 56.0
| GIH | 4.0 | 21.8 | 74.3
| LWK | 59.1 | 34.5 | 6.4
| MEX | 0.0 | 17.2 | 82.8
| MKK | 42.9 | 43.6 | 13.5
| TSI | 1.0 | 23.5 | 75.5
| HapMapRevision=28
}}[[Yasko Methylation]] Catalyzes the hydrolysis of AdoHcy to adenosine and homocysteine. AdoHcy hydrolysis serves not only to sustain the flux of methionine sulfur toward cysteine, but is believed also to play a critical role in the regulation of biologic methylations.

This is one of the SNPs reported by [[NutraHacker SNPs|NutraHacker]].

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}