Autosomal-inherited progressive external ophthalmoplegia (PEO) is an adult-onset disease characterized by the accumulation of multiple mitochondrial DNA (mtDNA) deletions in post-mitotic tissues. Mutations in six different genes have been described to cause the autosomal dominant PEO (PEOA). Conversely, the autosomal recessive PEO (PEOB) has only been associated with mutations in POLG1. Recently, mutations in RNASEH1, TK2, and DGUOK has been identified.
Category
Nervous system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
09 Diseases of the visual system
Strabismus or ocular motility disorders
9C82 Disorders of extraocular muscles
H01395 Autosomal recessive progressive external ophthalmoplegia
Pathway-based classification of diseases [BR:br08402]
Replication, repair and transcription
nt06506 Double-strand break repair
H01395 Autosomal recessive progressive external ophthalmoplegia
Reyes A, Melchionda L, Nasca A, Carrara F, Lamantea E, Zanolini A, Lamperti C, Fang M, Zhang J, Ronchi D, Bonato S, Fagiolari G, Moggio M, Ghezzi D, Zeviani M
Title
RNASEH1 Mutations Impair mtDNA Replication and Cause Adult-Onset Mitochondrial Encephalomyopathy.
Ronchi D, Garone C, Bordoni A, Gutierrez Rios P, Calvo SE, Ripolone M, Ranieri M, Rizzuti M, Villa L, Magri F, Corti S, Bresolin N, Mootha VK, Moggio M, DiMauro S, Comi GP, Sciacco M
Title
Next-generation sequencing reveals DGUOK mutations in adult patients with mitochondrial DNA multiple deletions.
Nicholls TJ, Nadalutti CA, Motori E, Sommerville EW, Gorman GS, Basu S, Hoberg E, Turnbull DM, Chinnery PF, Larsson NG, Larsson E, Falkenberg M, Taylor RW, Griffith JD, Gustafsson CM
Title
Topoisomerase 3alpha Is Required for Decatenation and Segregation of Human mtDNA.
Shintaku J, Pernice WM, Eyaid W, Gc JB, Brown ZP, Juanola-Falgarona M, Torres-Torronteras J, Sommerville EW, Hellebrekers DM, Blakely EL, Donaldson A, van de Laar I, Leu CS, Marti R, Frank J, Tanji K, Koolen DA, Rodenburg RJ, Chinnery PF, Smeets HJM, Gorman GS, Bonnen PE, Taylor RW, Hirano M
Title
RRM1 variants cause a mitochondrial DNA maintenance disorder via impaired de novo nucleotide synthesis.