{{Rsnum
|rsid=10502172
|Gene=TTC12
|Chromosome=11
|position=113328424
|Orientation=plus
|GMAF=0.2415
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=TTC12
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 30.1 | 50.4 | 19.5
| HCB | 92.5 | 7.5 | 0.0
| JPT | 88.4 | 11.6 | 0.0
| YRI | 99.3 | 0.7 | 0.0
| ASW | 78.9 | 19.3 | 1.8
| CHB | 92.5 | 7.5 | 0.0
| CHD | 92.7 | 7.3 | 0.0
| GIH | 50.0 | 41.0 | 9.0
| LWK | 98.2 | 1.8 | 0.0
| MEX | 45.6 | 38.6 | 15.8
| MKK | 89.6 | 10.4 | 0.0
| TSI | 24.5 | 50.0 | 25.5
| HapMapRevision=28
}}[http://blog.23andme.com/2011/05/18/snpwatch-researchers-identify-genetic-variant-associated-with-adolescent-smoking-behavior/ 23andMe blog]  each C at was associated with smoking during adolescence but not in adulthood

{{PMID Auto
|PMID=21168125
|Title=TTC12-ANKK1-DRD2 and CHRNA5-CHRNA3-CHRNB4 influence different pathways leading to smoking behavior from adolescence to mid-adulthood.
|OA=1
}}

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}