Mitochondrial DNA maintenance disorder
Gene: POLG2EnsemblGeneIds (GRCh38): ENSG00000256525
EnsemblGeneIds (GRCh37): ENSG00000256525
OMIM: 604983, Gene2Phenotype
POLG2 is in 14 panels
4 reviews
Arina Puzriakova (Genomics England Curator)
Gene list provided by Carl Fratter (Oxford University Hospitals NHS Trust) in August 2022 on behalf of the three GMS Mitochondrial providers, supporting the Green rating of this gene on this panel based on current evidence.Created: 30 Aug 2022, 9:31 a.m. | Last Modified: 30 Aug 2022, 9:31 a.m.
Panel Version: 1.16
Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Phenotypes
?Mitochondrial DNA depletion syndrome syndrome 16 (hepatic type), OMIM: 618528; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, OMIM: 610131; ?Mitochondrial DNA depletion syndrome 16B (neuroophthalmic type), OMIM: 619425
Publications
Variants in this GENE are reported as part of current diagnostic practice
Ivone Leong (Genomics England Curator)
Initial gene list and info collated by Carl Fratter (Oxford University Hospitals NHS Trust) January 2019 on behalf of the GMS Mitochondrial specialist test group. Gene Symbol submitted: POLG2; Suggested intial gene rating: Green; Information provided: Mode of inheritance, phenotype and publication.Created: 1 Feb 2019, 4:28 p.m.
Mode of inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Phenotypes
Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, 610131; Mitochondrial DNA depletion syndrome, NA
Publications
Carl Fratter (Oxford University Hospitals NHS Trust)
Variants in this GENE are reported as part of current diagnostic practice
Shamima Rahman (UCL Institute of Child Health)
Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Details
- Mode of Inheritance
- 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
- OMIM
- 604983
- Clinvar variants
- Variants in POLG2
- Penetrance
- None
- Publications
- Panels with this gene
-
- Early onset or syndromic epilepsy
- Inherited white matter disorders
- Fetal anomalies
- Undiagnosed metabolic disorders
- White matter disorders and cerebral calcification - narrow panel
- Childhood onset dystonia, chorea or related movement disorder
- Rhabdomyolysis and metabolic muscle disorders
- Likely inborn error of metabolism
- Hereditary ataxia with onset in adulthood
- Mitochondrial liver disease, including transient infantile liver failure
- Acute rhabdomyolysis
- Mitochondrial DNA maintenance disorder
- Mitochondrial disorders
- Possible mitochondrial disorder - nuclear genes
History Filter Activity
Set publications
Arina Puzriakova (Genomics England Curator)Publications for gene: POLG2 were set to 30157269
Set Phenotypes
Arina Puzriakova (Genomics England Curator)Phenotypes for gene: POLG2 were changed from Mitochondrial DNA depletion syndrome, NA; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, 610131 to 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
Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes
Ivone Leong (Genomics England Curator)gene: POLG2 was added gene: POLG2 was added to Mitochondrial DNA maintenance disorder. Sources: Expert Review Green,NHS GMS Mode of inheritance for gene: POLG2 was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: POLG2 were set to 30157269 Phenotypes for gene: POLG2 were set to Mitochondrial DNA depletion syndrome, NA; Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 4, 610131