TK2

thymidine kinase 2, mitochondrial
OMIM: 188250, Gene2Phenotype

16 panels

Panel Reviews Mode of inheritance Details
16 panels
Green TK2 in Rhabdomyolysis and metabolic muscle disorders


Level 2: Neurology
Version 6.9
Latest signed off version: v6.8 (12 Aug 2026)

Component of the following Super Panels:

  • Hypotonic infant
  • Other rare neuromuscular disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • UKGTN
    • Illumina TruGenome Clinical Sequencing Services
    • Radboud University Medical Center, Nijmegen
    • Emory Genetics Laboratory
    • Literature
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    Green TK2 in Mitochondrial DNA maintenance disorder


    Level 2: Mitochondrial
    Version 3.11
    Latest signed off version: v3.10 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 3, OMIM:617069
    Amber TK2 in Congenital muscular dystrophy


    Level 2: Neurology
    Version 7.27
    Latest signed off version: v7.26 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Other rare neuromuscular disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Amber
    • NHS GMS
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • mitochondrial DNA depletion syndrome, myopathic form, MONDO:0012301
    Tags
    • Q4_25_promote_green
    • Q4_25_NHS_review
    Red TK2 in Arthrogryposis


    Level 2: Neurology
    Version 10.23
    Latest signed off version: v10.16 (12 Aug 2026)

    review Not set
    Sources
    • Expert Review Red
    • Expert list
    Amber TK2 in Congenital myopathy


    Level 2: Neurology
    Version 7.80
    Latest signed off version: v7.77 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Other rare neuromuscular disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Amber
    • NHS GMS
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • mitochondrial DNA depletion syndrome, myopathic form, MONDO:0012301
    Tags
    • Q2_26_promote_green
    • Q2_26_NHS_review
    Amber TK2 in Limb girdle muscular dystrophies, myofibrillar myopathies and distal myopathies


    Level 2: Neurology
    Version 6.18
    Latest signed off version: v6.17 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Other rare neuromuscular disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Amber
    • NHS GMS
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • mitochondrial DNA depletion syndrome, myopathic form, MONDO:0012301
    Tags
    • Q4_25_promote_green
    • Q4_25_NHS_review
    Green TK2 in Undiagnosed metabolic disorders

    Level 3: Specific metabolic abnormalities
    Level 2: Metabolic disorders
    Version 1.645

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Literature
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 3, OMIM:617069
    Green TK2 in Likely inborn error of metabolism


    Level 2: Metabolic
    Version 9.30
    Latest signed off version: v9.29 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Leukodystrophy, childhood onset
  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • London North GLH
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 3, OMIM:617069
    Green TK2 in Possible mitochondrial disorder, nuclear genes


    Level 2: Mitochondrial
    Version 5.23
    Latest signed off version: v5.17 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 3, OMIM:617069
    Green TK2 in Fetal anomalies


    Level 2: Fetal (including NIPD)
    Version 8.5
    Latest signed off version: v8.0 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    • PAGE DD-Gene2Phenotype
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    Green TK2 in DDG2P


    Version 8.1
    Latest signed off version: v8.0 (12 Aug 2026)

    Component of the following Super Panels:

  • Paediatric disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • DD-Gene2Phenotype
    • Expert Review Green
    Phenotypes
    • MITOCHONDRIAL DNA DEPLETION SYNDROME, MYOPATHIC FORM 258276
    Red TK2 in Intellectual disability


    Level 2: Developmental disorders
    Version 11.28
    Latest signed off version: v11.0 (12 Aug 2026)

    Component of the following Super Panels:

  • Hypotonic infant
  • Leukodystrophy, childhood onset
  • Paediatric disorders
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    Green TK2 in Mitochondrial disorders


    Level 2: Mitochondrial
    Version 10.23
    Latest signed off version: v10.18 (12 Aug 2026)

    Component of the following Super Panels:

  • Leukodystrophy, childhood onset
  • review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Victorian Clinical Genetics Services
    • UKGTN
    • Illumina TruGenome Clinical Sequencing Services
    • Radboud University Medical Center, Nijmegen
    • Expert list
    • Expert
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal recessive 3, OMIM:617069
    Red TK2 in Dystonia, chorea or related movement disorder, childhood onset


    Level 2: Neurology
    Version 8.14
    Latest signed off version: v8.13 (12 Aug 2026)

    review Not set
    Sources
    • Expert Review Red
    • London North GLH
    Green TK2 in Acute rhabdomyolysis


    Level 2: Neurology
    Version 3.1
    Latest signed off version: v3.0 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560
    Red TK2 in Paediatric pseudo-obstruction syndrome


    Level 2: Gastrohepatology
    Version 2.8
    Latest signed off version: v2.7 (12 Aug 2026)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • Expert list
    Phenotypes
    • Mitochondrial DNA depletion syndrome 2 (myopathic type), OMIM:609560