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Mitochondria contain their own DNA, mitochondrial DNA, which encodes thirteen proteins. However, mitochondria require thousands of proteins encoded in the nucleus to carry out their many functions.
Aditya Sen, Aditya Sen, Rachel T. Cox
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Hsp70 in mitochondrial biogenesis [PDF]
The family of hsp70 (70 kilodalton heat shock protein) molecular chaperones plays an essential and diverse role in cellular physiology, Hsp70 proteins appear to elicit their effects by interacting with polypeptides that present domains which exhibit non ...
A. Tzagoloff +53 more
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Effects of Laser Radiation on Mitochondria and Mitochondrial Proteins Subjected to Nitric Oxide
The biological roles of heme and nonheme nitrosyl complexes in physiological and pathophysiological conditions as metabolic key players are considered in this study. Two main physiological functions of protein nitrosyl complexes are discussed—(1) a depot
Anatoly N. Osipov +5 more
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Control of mitochondrial biogenesis and function by the ubiquitin–proteasome system [PDF]
Mitochondria are pivotal organelles in eukaryotic cells. The complex proteome of mitochondria comprises proteins that are encoded by nuclear and mitochondrial genomes. The biogenesis of mitochondrial proteins requires their transport in an unfolded state
Piotr Bragoszewski +2 more
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Summary: In mammals, about 99% of mitochondrial proteins are synthesized in the cytosol as precursors that are subsequently imported into the organelle. The mitochondrial health and functions rely on an accurate quality control of these imported proteins.
Julie Lavie +11 more
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Mitochondrial assembly: protein import [PDF]
The protein import process of mitochondria is vital for the assembly of the hundreds of nuclear-derived proteins into an expanding organelle reticulum. Most of our knowledge of this complex multisubunit network comes from studies of yeast and fungal systems, with little information known about the protein import process in mammalian cells, particularly
David A, Hood, Anna-Maria, Joseph
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Mechanisms of Modulation of Mitochondrial Architecture
Mitochondrial network architecture plays a critical role in cellular physiology. Indeed, alterations in the shape of mitochondria upon exposure to cellular stress can cause the dysfunction of these organelles.
Juan Pablo Muñoz +4 more
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Sorting pathways of mitochondrial inner membrane proteins [PDF]
Two distinct pathways of sorting and assembly of nuclear-encoded mitochondrial inner membrane proteins are described. In the first pathway, precursor proteins that carry amino-terminal targeting signals are initially translocated via contact sites ...
Hartl, Franz-Ulrich +5 more
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Targeting and Insertion of Membrane Proteins in Mitochondria
Mitochondrial membrane proteins play an essential role in all major mitochondrial functions. The respiratory complexes of the inner membrane are key for the generation of energy. The carrier proteins for the influx/efflux of essential metabolites to/from
Ross Eaglesfield, Kostas Tokatlidis
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Mitochondrial ribosome assembly in Neurospora. Structural analysis of mature and partially assembled ribosomal subunits by equilibrium centrifugation in CsCl gradients [PDF]
In Neurospora, one protein associated with the mitochondrial small ribosomal subunit (S-5, Mr 52,000) is synthesized intramitochondrially and is assumed to be encoded by mtDNA.
Lambowitz, Alan M., LaPolla, Robert J.
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