POLG2

DNA polymerase gamma 2, accessory subunit
OMIM: 604983, Gene2Phenotype

14 panels

Panel Reviews Mode of inheritance Details
14 panels
Green POLG2 in Rhabdomyolysis and metabolic muscle disorders


Level 2: Neurology
Version 5.14
Latest signed off version: v5.4 (30 Apr 2025)

Component of the following Super Panels:

  • Hypotonic infant
  • Other rare neuromuscular disorders
  • review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Radboud University Medical Center, Nijmegen
    • UKGTN
    • Illumina TruGenome Clinical Sequencing Services
    • Emory Genetics Laboratory
    • Literature
    Phenotypes
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4 610131
    Green POLG2 in White matter disorders and cerebral calcification - narrow panel


    Level 2: Neurology
    Version 7.11
    Latest signed off version: v7.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    Phenotypes
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4
    Red POLG2 in Mitochondrial liver disease, including transient infantile liver failure


    Level 2: Mitochondrial
    Version 1.14
    Latest signed off version: v1.9 (22 Mar 2023)

    review BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • NHS GMS
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Inherited white matter disorders

    Level 3: White matter disorders
    Level 2: Neurology and neurodevelopmental disorders
    Version 1.186

    review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Emory Genetics Laboratory
    • UKGTN
    • Radboud University Medical Center, Nijmegen
    • Illumina TruGenome Clinical Sequencing Services
    • Expert list
    Phenotypes
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4 610131
    Green POLG2 in Mitochondrial DNA maintenance disorder


    Level 2: Mitochondrial
    Version 3.9
    Latest signed off version: v3.0 (22 Mar 2023)

    review BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Undiagnosed metabolic disorders

    Level 3: Specific metabolic abnormalities
    Level 2: Metabolic disorders
    Version 1.642

    review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Literature
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Likely inborn error of metabolism


    Level 2: Metabolic
    Version 8.91
    Latest signed off version: v8.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • Hypotonic infant
  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • London North GLH
    • NHS GMS
    • Expert Review Green
    • Victorian Clinical Genetics Services
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Possible mitochondrial disorder - nuclear genes


    Level 2: Mitochondrial
    Version 4.20
    Latest signed off version: v4.0 (30 Apr 2025)

    review BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Fetal anomalies


    Level 2: Fetal (including NIPD)
    Version 6.140
    Latest signed off version: v6.0 (30 Apr 2025)

    review BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
    Sources
    • Expert Review Green
    • Expert list
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Amber POLG2 in Early onset or syndromic epilepsy


    Level 2: Neurology
    Version 8.120
    Latest signed off version: v8.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Paediatric disorders
  • Unexplained death in infancy and sudden unexplained death in childhood
  • review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Expert Review Amber
    • Literature
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Green POLG2 in Mitochondrial disorders


    Level 2: Mitochondrial
    Version 9.41
    Latest signed off version: v9.0 (30 Apr 2025)

    Component of the following Super Panels:

  • Childhood onset leukodystrophy
  • review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • Victorian Clinical Genetics Services
    • Illumina TruGenome Clinical Sequencing Services
    • UKGTN
    • Radboud University Medical Center, Nijmegen
    • Expert list
    • Expert
    Phenotypes
    • Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM:618528
    • Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM:619425
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131
    Red POLG2 in Hereditary ataxia with onset in adulthood


    Level 2: Neurology
    Version 8.23
    Latest signed off version: v8.0 (30 Apr 2025)

    review BIALLELIC, autosomal or pseudoautosomal
    Sources
    • Expert Review Red
    • London North GLH
    • NHS GMS
    • Wessex and West Midlands GLH
    Phenotypes
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant, 610131
    Red POLG2 in Childhood onset dystonia, chorea or related movement disorder


    Level 2: Neurology
    Version 7.13
    Latest signed off version: v7.0 (30 Apr 2025)

    review Not set
    Sources
    • Expert Review Red
    • London North GLH
    Green POLG2 in Acute rhabdomyolysis


    Level 2: Neurology
    Version 2.7
    Latest signed off version: v2.0 (30 Apr 2025)

    review BOTH monoallelic and biallelic, autosomal or pseudoautosomal
    Sources
    • NHS GMS
    • Expert Review Green
    Phenotypes
    • Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM:610131