期刊
TRENDS IN BIOCHEMICAL SCIENCES
卷 45, 期 8, 页码 650-667出版社
CELL PRESS
DOI: 10.1016/j.tibs.2020.04.001
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资金
- German Research Foundation (DFG)
- GIF grant
- EMBO Long Term Fellowship
While targeting of proteins synthesized in the cytosol to any organelle is complex, mitochondria present the most challenging of destinations. First, import of nuclear-encoded proteins needs to be balanced with production of mitochondrial-encoded ones. Moreover, as mitochondria are divided into distinct subdomains, their proteins harbor a number of different targeting signals and biophysical properties. While translocation into the mitochondrial membranes has been well studied, the cytosolic steps of protein import remain poorly understood. Here, we review current knowledge on mRNA and protein targeting to mitochondria, as well as recent advances in our understanding of the cellular programs that respond to accumulation of mitochondrial precursor proteins in the cytosol, thus linking defects in targeting-capacity to signaling.
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