Human mitochondrial DNA replication machinery and disease.
Human mitochondrial DNA replication machinery and disease.
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DOI:
10.1016/j.gde.2016.03.005
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发表时间:
2016-06
影响因子:
4
通讯作者:
Copeland, William C.
中科院分区:
文献类型:
--
作者:
Young, Matthew J.;Copeland, William C.
The human mitochondrial genome is replicated by DNA polymerase γ in concert with key components of the mitochondrial DNA (mtDNA) replication machinery. Defects in mtDNA replication or nucleotide metabolism cause deletions, point mutations, or depletion of mtDNA. The resulting loss of cellular respiration ultimately induces mitochondrial genetic diseases, including mtDNA depletion syndromes such as Alpers or early infantile hepatocerebral syndromes, and mtDNA deletion disorders such as progressive external ophthalmoplegia, ataxia-neuropathy, or mitochondrial neurogastrointestinal encephalomyopathy. Here we review the current literature regarding human mtDNA replication and heritable disorders caused by genetic changes of the POLG, POLG2, Twinkle, RNASEH1, DNA2 and MGME1 genes.
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