{{Genotype
|rsid=10513789
|allele1=T
|allele2=T
|magnitude=1.25
|repute=
|summary=Very common. Normal risk of Parkinson's disease.
}}
Approximately 55% of non-asian people have this genotype which is associated with slightly higher risk of Parkinson's disease when compared to genotype (G;G).

It is notable because it is the first SNP patented by [[23andMe]]

[[rs10513789]](T) increased risk of developing [[Parkinson's Disease]]

[http://www.genomicslawreport.com/index.php/2012/06/01/patenting-and-personal-genomics-23andme-receives-its-first-patent-and-plenty-of-questions/ GenomicsLawReport]