Beyond the signal sequence: protein routing in health and disease.
Receptors, hormones, enzymes, ion channels, and structural components of the cell are created by the act of protein synthesis. Synthesis alone is insufficient for proper function, of course; for a cell to operate effectively, its components must be correctly compartmentalized. The mechanism by which proteins maintain the fidelity of localization warrants attention in light of the large number of different molecules that must be routed to distinct subcellular loci, the potential for error, and resultant disease. This review summarizes diseases known to have etiologies based on defective protein folding or failure of the cell's quality control apparatus and presents approaches for therapeutic intervention.
Castro-Fernández
Cecilia
C
Oregon National Primate Research Center/Oregon Health and Science University, 505 NW 185th Avenue, Beaverton, Oregon 97006, USA.
Maya-Núñez
Guadalupe
G
Conn
P Michael
PM
D000818:Animals; D004194:Disease / Q000209:etiology*; D004721:Endoplasmic Reticulum / Q000378:metabolism; D006056:Golgi Apparatus / Q000378:metabolism; D006801:Humans; D008928:Mitochondria / Q000378:metabolism; D018832:Molecular Chaperones / Q000502:physiology; D009154:Mutation; D009422:Nervous System Diseases / Q000209:etiology; D011487:Protein Conformation; D021382:Protein Sorting Signals / Q000502:physiology*; D011506:Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D043562:Receptors, G-Protein-Coupled
D018832:Molecular Chaperones; D021382:Protein Sorting Signals; D011506:Proteins; D043562:Receptors, G-Protein-Coupled