title: Are all mitochondrial translation products synthesized on membrane-bound ribosomes?
abstract: The Arrhenius kinetics for the synthesis of var1, which is a hydrophilic protein of the mitochondrial ribosomes, have been compared to that of other mitochondrial translation products, which are hydrophobic subunits of the respiratory enzyme complexes. Our results indicate that, in the yeast Saccharomyces cerevisiae, the hydrophilic var1 protein is synthesized on membrane-associated mitochondrial ribosomes which cannot be distinguished from those responsible for the synthesis of the hydrophobic mitochondrial translation products.
mesh_terms: D005656:Fungal Proteins / Q000096:biosynthesis*; D007425:Intracellular Membranes / Q000502:physiology*; D007700:Kinetics; D008565:Membrane Proteins / Q000096:biosynthesis*; D008928:Mitochondria / Q000378:metabolism*; D024101:Mitochondrial Proteins; D014176:Protein Biosynthesis; D012269:Ribosomal Proteins; D012270:Ribosomes / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000235:genetics; D029701:Saccharomyces cerevisiae Proteins; D013696:Temperature
chemical_list: D005656:Fungal Proteins; D008565:Membrane Proteins; D024101:Mitochondrial Proteins; D012269:Ribosomal Proteins; D029701:Saccharomyces cerevisiae Proteins; C026383:VAR1 protein, S cerevisiae