Mitochondrial Dna Depletion Syndrome 2, also known as mitochondrial dna depletion syndrome, myopathic form, is related to mitochondrial dna depletion syndrome and tk2-related mitochondrial dna maintenance defect, myopathic form. An important gene associated with Mitochondrial Dna Depletion Syndrome 2 is TK2 (Thymidine Kinase 2), and among its related pathways/superpathways is Nucleotide salvage. Affiliated tissues include skeletal muscle and liver, and related phenotypes are myopathy and muscle weakness