Oxygen tension regulates mitochondrial DNA-encoded complex I gene expression.

Abstract excerpt

Oxygen is a major regulator of nuclear gene expression. However, although mitochondria consume almost all of the O2 available to the cells, little is known about how O2 tension influences the expression of the mitochondrial genome. We show in O2-sensitive excitable rat PC12 cells that, among the mtDNA-encoded genes, hypoxia produced a specific down-regulation of the transcripts encoding mitochondrial complex I...

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