{{Rsnum
|rsid=4537731
|Chromosome=11
|position=18047335
|Orientation=plus
|GMAF=0.4128
|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 | 21.9 | 46.9 | 31.2
| HCB | 7.3 | 41.5 | 51.2
| JPT | 2.2 | 42.2 | 55.6
| YRI | 50.9 | 41.8 | 7.3
| ASW | 0.0 | 0.0 | 0.0
| CHB | 7.3 | 41.5 | 51.2
| 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=21989108
|Title=Interaction between tryptophan hydroxylase I polymorphisms and childhood abuse is associated with increased risk for borderline personality disorder in adulthood
|OA=1
}}{{PMID Auto
|PMID=17203304
|Title=Evidence for epistasis between SLC6A4 and ITGB3 in autism etiology and in the determination of platelet serotonin levels.
}}

{{PMID Auto
|PMID=20580984
|Title=Tryptophan hydroxylase gene 1 (TPH1) variants associated with cerebrospinal fluid 5-hydroxyindole acetic acid and homovanillic acid concentrations in healthy volunteers.
}}
{{PMID Auto
|PMID=23172723
|Title=TPH gene polymorphisms are associated with disease perception and quality of life in women with irritable bowel syndrome
}}