title: Protein import into mitochondria in a homologous yeast in vitro system.
abstract: To study the import of proteins into mitochondria we developed a homologous in vitro system in which mitochondria and cell-free translation extract are both derived from the yeast Saccharomyces cerevisiae. This system allows the synthesis of precursor proteins in the presence of isolated mitochondria and offers a means of analyzing yeast mutants defective in mitochondrial protein import. The in vitro import of an artificial precursor protein into yeast mitochondria in the presence of its substrate analog was analyzed subsequent to synthesis in either a yeast or rabbit reticulocyte cell-free translation reaction. Results suggest that a component(s) present in the yeast cytosolic extract may interact with the precursor protein.
authors.affiliation: Biocenter, University of Basel, Switzerland.
authors.forename: K
authors.initials: K
authors.lastname: Verner
authors.forename: M
authors.initials: M
authors.lastname: Weber
mesh_terms: D001692:Biological Transport / Q000187:drug effects; D002451:Cell Compartmentation; D002474:Cell-Free System; D003576:Electron Transport Complex IV / Q000378:metabolism; D066298:In Vitro Techniques; D008727:Methotrexate / Q000494:pharmacology; D008928:Mitochondria / Q000378:metabolism*; D014176:Protein Biosynthesis; D011506:Proteins / Q000378:metabolism*; D006180:Proton-Translocating ATPases / Q000378:metabolism; D011993:Recombinant Fusion Proteins / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000378:metabolism
chemical_list: D011506:Proteins; D011993:Recombinant Fusion Proteins; D003576:Electron Transport Complex IV; D006180:Proton-Translocating ATPases; D008727:Methotrexate