title: The ribosome as a hub for protein quality control.
abstract: Cells face a constant challenge as they produce new proteins. The newly synthesized polypeptides must be folded properly to avoid aggregation. If proteins do misfold, they must be cleared to maintain a functional and healthy proteome. Recent work is revealing the complex mechanisms that work cotranslationally to ensure protein quality control during biogenesis at the ribosome. Indeed, the ribosome is emerging as a central hub in coordinating these processes, particularly in sensing the nature of the nascent protein chain, recruiting protein folding and translocation components, and integrating mRNA and nascent chain quality control. The tiered and complementary nature of these decision-making processes confers robustness and fidelity to protein homeostasis during protein synthesis.
authors: Department of Biology, Stanford University, Stanford, CA 94305-5020, USA.
authors: Sebastian
authors: S
authors: Pechmann
authors: Felix
authors: F
authors: Willmund
authors: Judith
authors: J
authors: Frydman
mesh_terms: D000818:Animals; D055592:Biophysical Phenomena; D006706:Homeostasis; D006801:Humans; D014176:Protein Biosynthesis; D017510:Protein Folding; D011506:Proteins / Q000737:chemistry* / Q000378:metabolism*; D012270:Ribosomes / Q000378:metabolism*
chemical_list: D011506:Proteins
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