title: Quality control mechanisms during ribosome maturation.
abstract: Protein synthesis on ribosomes is carefully quality-controlled to ensure the faithful transmission of genetic information from mRNA to protein. Many of these mechanisms rely on communication between distant sites on the ribosomes, and thus on the integrity of the ribosome structure. Furthermore, haploinsufficiency of ribosomal proteins, which increases the chances of forming incompletely assembled ribosomes, can predispose to cancer. Finally, release of inactive ribosomes into the translating pool will lead to their degradation together with the degradation of the bound mRNA. Together, these findings suggest that quality control mechanisms must be in place to survey nascent ribosomes and ensure their functionality. This review gives an account of these mechanisms as currently known.
authors: Department of Cancer Biology, The Scripps Research Institute, 130 Scripps Way #2C2, Jupiter, FL 33458, USA. kkarbst@scripps.edu
authors: Katrin
authors: K
authors: Karbstein
mesh_terms: D029503:Anemia, Diamond-Blackfan / Q000235:genetics; D000748:Anemia, Macrocytic / Q000235:genetics; D001665:Binding Sites; D002872:Chromosome Deletion; D002895:Chromosomes, Human, Pair 5 / Q000235:genetics; D006801:Humans; D008024:Ligands; D010442:Peptide Chain Initiation, Translational / Q000502:physiology; D014176:Protein Biosynthesis / Q000502:physiology*; D011786:Quality Control; D012333:RNA, Messenger / Q000378:metabolism*; D012335:RNA, Ribosomal / Q000502:physiology; D012269:Ribosomal Proteins / Q000235:genetics; D054683:Ribosome Subunits, Large, Eukaryotic / Q000502:physiology; D054682:Ribosome Subunits, Small, Eukaryotic / Q000502:physiology; D012270:Ribosomes / Q000502:physiology*
chemical_list: D008024:Ligands; D012333:RNA, Messenger; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins
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