{{Rsnum
|rsid=502396
|Gene=TYMS
|Chromosome=18
|position=659236
|Orientation=plus
|GMAF=0.4022
|Gene_s=C18orf56,TYMS
|Assembly=GRCh37.p2
|GenomeBuild=37.2
|dbSNPBuild=134
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}
{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 19.5 | 55.8 | 24.8
| HCB | 54.0 | 41.6 | 4.4
| JPT | 50.4 | 42.5 | 7.1
| YRI | 42.2 | 51.0 | 6.8
| ASW | 42.1 | 50.9 | 7.0
| CHB | 54.0 | 41.6 | 4.4
| CHD | 53.2 | 40.4 | 6.4
| GIH | 28.7 | 55.4 | 15.8
| LWK | 59.1 | 35.5 | 5.5
| MEX | 20.7 | 46.6 | 32.8
| MKK | 64.1 | 26.9 | 9.0
| TSI | 25.5 | 55.9 | 18.6
| HapMapRevision=28
}}{{PMID Auto
|PMID=19493349
|Title=118 SNPs of folate-related genes and risks of spina bifida and conotruncal heart defects
|OA=1
}}

{{PMID|18098291}} Folate metabolism genes, vegetable intake and renal cancer risk in central Europe.

{{PMID|19064578|OA=1
}} No association of single nucleotide polymorphisms in one-carbon metabolism genes with prostate cancer risk.

{{PMID|19190136|OA=1
}} Association of thymidylate synthase gene with endometrial cancer risk in a Chinese population.

{{PMID Auto
|PMID=22903727
|Title=Maternal and infant gene-folate interactions and the risk of neural tube defects.
|OA=1
}}

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