title: The RNA exosome and proteasome: common principles of degradation control.
abstract: Defective RNAs and proteins are swiftly degraded by cellular quality control mechanisms. A large fraction of their degradation is mediated by the exosome and the proteasome. These complexes have a similar architectural framework based on cylindrical, hollow structures that are conserved from bacteria and archaea to eukaryotes. Mechanistic similarities have also been identified for how RNAs and proteins are channelled into these structures and prepared for degradation. Insights gained from studies of the proteasome should now set the stage for elucidating the regulation, assembly and small-molecule inhibition of the exosome.
authors.affiliation: Department of Structural Cell Biology, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany.
authors.forename: Debora L
authors.initials: DL
authors.lastname: Makino
authors.forename: Felix
authors.initials: F
authors.lastname: Halbach
authors.forename: Elena
authors.initials: E
authors.lastname: Conti
mesh_terms: D001105:Archaea / Q000235:genetics; D001419:Bacteria / Q000235:genetics; D056890:Eukaryota / Q000235:genetics; D005095:Exoribonucleases / Q000235:genetics; D063326:Exosome Multienzyme Ribonuclease Complex / Q000235:genetics*; D046988:Proteasome Endopeptidase Complex / Q000235:genetics*; D059748:Proteolysis; D011786:Quality Control; D020871:RNA Stability
chemical_list: D005095:Exoribonucleases; D063326:Exosome Multienzyme Ribonuclease Complex; D046988:Proteasome Endopeptidase Complex