rs1315779439

This variant is located in the TK2 gene.

ClinVar annotation

Uncertain Significance★★★
2 submitters2 publications

not provided; Mitochondrial disease

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About TK2

This gene encodes a deoxyribonucleoside kinase that specifically phosphorylates thymidine, deoxycytidine, and deoxyuridine. The encoded enzyme localizes to the mitochondria and is required for mitochondrial DNA synthesis. Mutations in this gene are associated with a myopathic form of mitochondrial DNA depletion syndrome. Alternate splicing results in multiple transcript variants encoding distinct isoforms, some of which lack transit peptide, so are not localized to mitochondria. [provided by RefSeq, Dec 2012]

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Gene information from NCBI Gene. Variant classifications from ClinVar.

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