{{Rsnum
|rsid=56379106
|Chromosome=8
|Orientation=plus
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene=NAT1
|position=18222237
|Gene_s=NAT1
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}N-acetyltransferase [[NAT1]]*17 190C>T variant R64W, "slow metaboliser". [PMID 9511183, PMID 9682272]