Premature ageing in mice expressing defective mitochondrial DNA polymerase. - AlzForum Alzheimer Research Paper of the Week


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Home: Papers of the Week

Annotation

	Trifunovic A, Wredenberg A, Falkenberg M, Spelbrink JN, Rovio AT, Bruder CE, Bohlooly-Y M, Gidlöf S, Oldfors A, Wibom R, Törnell J, Jacobs HT, Larsson NG. Premature ageing in mice expressing defective mitochondrial DNA polymerase. Nature. 2004 May 27;429(6990):417-23. PubMed Abstract

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REAGENTS/MATERIAL:

Created homozygous knock-in mice that express a proof-reading-deficient version of PolgA, the nucleus-encoded catalytic subunit of mtDNA polymerase. Here we show that the knock-in mice develop an mtDNA mutator phenotype with a threefold to fivefold increase in the levels of point mutations, as well as increased amounts of deleted mtDNA.