Gene Symbol | TWNK |
Entrez Gene ID | 56652 |
Full Name | twinkle mtDNA helicase |
Synonyms | ATXN8,C10orf2,IOSCA,MTDPS7,PEO,PEO1,PEOA3,PRLTS5,SANDO,SCA8,TWINL |
General protein information |
|
Gene Type | protein-coding |
Organism | Homo sapiens(human) |
Genome | |
Summary | This gene encodes a hexameric DNA helicase which unwinds short stretches of double-stranded DNA in the 5' to 3' direction and, along with mitochondrial single-stranded DNA binding protein and mtDNA polymerase gamma, is thought to play a key role in mtDNA replication. The protein localizes to the mitochondrial matrix and mitochondrial nucleoids. Mutations in this gene cause infantile onset spinocerebellar ataxia (IOSCA) and progressive external ophthalmoplegia (PEO) and are also associated with several mitochondrial depletion syndromes. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Aug 2009]. |
Disorder MIM: | |
Disorder Html: | Progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 3, 609286 (3); Mitochondrial DNA depletion syndrome 7 (hepatocerebral type), 271245 (3); Perrault syndrome 5, 616138 (3) |