Mitochondrial genome maintenance in health and disease.
Mitochondrial genome maintenance in health and disease.
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DOI:
10.1016/j.dnarep.2014.03.010
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发表时间:
2014-07
期刊:
影响因子:
3.8
通讯作者:
Longley, Matthew J.
中科院分区:
文献类型:
--
作者:
Copeland, William C.;Longley, Matthew J.
Human mitochondria harbor an essential, high copy number, 16,569 base pair, circular DNA genome that encodes 13 gene products required for electron transport and oxidative phosphorylation. Mutation of this genome can compromise cellular respiration, ultimately resulting in a variety of progressive metabolic diseases collectively known as ‘mitochondrial diseases’. Mutagenesis of mtDNA and the persistence of mtDNA mutations in cells and tissues is a complex topic, involving the interplay of DNA replication, DNA damage and repair, purifying selection, organelle dynamics, mitophagy, and aging. We briefly review these general elements that affect maintenance of mtDNA, and we focus on nuclear genes encoding the mtDNA replication machinery that can perturb the genetic integrity of the mitochondrial genome.
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