CPEO POLG

Disease ID
CPEO
Gene ID
POLG

Disease

Name
Progressive external ophthalmoplegia, Parkinson's disease
Inheritance
-
Description
sensory ataxic neuropathy, dysarthria, and ophtalmoparesis1 .
Prevalence
Disease association unclear but largely studied in European cohorts/patients2,3 .
Age of Onset(Typical)Years23  8757  59
Age of Onset Details
Typical: 574 - 595 ; Range: 23-874 .

Locus

Details
There is conflicting evidence for the association between this repeat expansion and Parkinson's risk4,6,7 , as well as overall disease significance. May be predisposing factor in earlier age of onset in FRDA patients8 .
Location in Gene
Exon 2
Gene Strand

Alleles

Ref. Motif
GCT
Pathogenic (ref.)
GCT
Pathogenic (gene)
AGC
BenignUnits10  10

References

Direct supporting references for info on this page.

1
Neurological disorders caused by novel non-coding repeat expansions: clinical features and differential diagnosis.
Elisa,Vegezzi, Hiroyuki,Ishiura, D Cristopher,Bragg, David,Pellerin, Francesca,Magrinelli, Riccardo,Currò, Stefano,Facchini, Arianna,Tucci, John,Hardy, Nutan,Sharma, Matt C,Danzi, Stephan,Zuchner, Bernard,Brais, Mary M,Reilly, Shoji,Tsuji, Henry,Houlden, Andrea,Cortese
The Lancet. Neurology · 2024-07-01
pmid:38876750
4
POLG1 polyglutamine tract variants associated with Parkinson's disease.
Johanna,Eerola, Petri T,Luoma, Terhi,Peuralinna, Sonja,Scholz, Coro,Paisan-Ruiz, Anu,Suomalainen, Andrew B,Singleton, Pentti J,Tienari
Neuroscience letters · 2010-04-24
pmid:20399836
5
Variations of the CAG trinucleotide repeat in DNA polymerase γ (POLG1) is associated with Parkinson's disease in Sweden.
Anna,Anvret, Marie,Westerlund, Olof,Sydow, Thomas,Willows, Charlotta,Lind, Dagmar,Galter, Andrea Carmine,Belin
Neuroscience letters · 2010-09-06
pmid:20826197
6
Analysis of the trinucleotide CAG repeat from the human mitochondrial DNA polymerase gene in healthy and diseased individuals.
A,Rovio, V,Tiranti, A L,Bednarz, A,Suomalainen, J N,Spelbrink, N,Lecrenier, A,Melberg, M,Zeviani, J,Poulton, F,Foury, H T,Jacobs
European journal of human genetics : EJHG · 1999-01-01
pmid:10196696
7
Number of CAG repeats in POLG1 and its association with Parkinson disease in the Norwegian population.
Novin,Balafkan, Charalampos,Tzoulis, Bernd,Müller, Kristoffer,Haugarvoll, Ole-Bjørn,Tysnes, Jan Petter,Larsen, Laurence A,Bindoff
Mitochondrion · 2012-08-29
pmid:22963882
8
Association between trinucleotide CAG repeats of the DNA polymerase gene (POLG) with age of onset of Iranian Friedreich's ataxia patients.
Mohammad Mehdi,Heidari, Massoud,Houshmand, Saman,Hosseinkhani, Shahriar,Nafissi, Barbara,Scheiber-Mojdehkar, Mehri,Khatami
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2008-11-28
pmid:19043662

Additional Literature

Additional literature related to this locus.

Raw PubMed search results
(All PubMed results returned by searching for this gene, tandem repeats, and disease, in medline format)

Molecular epidemiology of hereditary ataxia in Finland.
Joonas,Lipponen, Seppo,Helisalmi, Joose,Raivo, Ari,Siitonen, Hiroshi,Doi, Harri,Rusanen, Maria,Lehtilahti, Mervi,Ryytty, Markku,Laakso, Fumiaki,Tanaka, Kari,Majamaa, Laura,Kytövuori
BMC neurology · 2021-10-02
pmid:34600502
Genetic risk factors in Finnish patients with Parkinson's disease.
Susanna,Ylönen, Ari,Siitonen, Michael A,Nalls, Pauli,Ylikotila, Jaana,Autere, Johanna,Eerola-Rautio, Raphael,Gibbs, Mikko,Hiltunen, Pentti J,Tienari, Hilkka,Soininen, Andrew B,Singleton, Kari,Majamaa
Parkinsonism & related disorders · 2017-09-29
pmid:29029963
A panel study on patients with dominant cerebellar ataxia highlights the frequency of channelopathies.
Marie,Coutelier, Giulia,Coarelli, Marie-Lorraine,Monin, Juliette,Konop, Claire-Sophie,Davoine, Christelle,Tesson, Rémi,Valter, Mathieu,Anheim, Anthony,Behin, Giovanni,Castelnovo, Perrine,Charles, Albert,David, Claire,Ewenczyk, Mélanie,Fradin, Cyril,Goizet, Didier,Hannequin, Pierre,Labauge, Florence,Riant, Pierre,Sarda, Yves,Sznajer, François,Tison, Urielle,Ullmann, Lionel,Van Maldergem, Fanny,Mochel, Alexis,Brice, Giovanni,Stevanin, Alexandra,Durr
Brain : a journal of neurology · 2017-06-01
pmid:28444220
The POLG Polyglutamine Tract Variants in Iranian Patients with Multiple Sclerosis.
Mehri,Khatami, Mohammad Mehdi,Heidari, Reza,Mansouri, Fatemeh,Mousavi
Iranian journal of child neurology · 2015-01-01
pmid:25767537
Rare POLG1 CAG variants do not influence Parkinson's disease or polymerase gamma function.
Steven R,Bentley, Jianguo,Shan, Michael,Todorovic, Stephen A,Wood, George D,Mellick
Mitochondrion · 2014-01-31
pmid:24491464
Mitochondrial DNA polymerase gamma gene polymorphism is not associated with male infertility.
J,Poongothai
Journal of assisted reproduction and genetics · 2013-08-04
pmid:23912752
The POLG Gene Polymorphism in Iranian Varicocele-Associated Infertility Patients.
Mohammad Mehdi,Heidari, Mehri,Khatami, Ali Reza,Talebi
Iranian journal of basic medical sciences · 2012-03-01
pmid:23493802
POLG, but not PEO1, is a frequent cause of cerebellar ataxia in Central Europe.
Julia,Schicks, Matthis,Synofzik, Claudia,Schulte, Ludger,Schöls
Movement disorders : official journal of the Movement Disorder Society · 2010-11-15
pmid:20803511
Analysis of the trinucleotide CAG repeat from the DNA polymerase gamma gene (POLG) in patients with Parkinson's disease.
Jan-Willem,Taanman, Anthony H V,Schapira
Neuroscience letters · 2004-12-08
pmid:15694274