Journal
NATURE REVIEWS MOLECULAR CELL BIOLOGY
Volume 14, Issue 4, Pages 237-248Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nrm3542
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Funding
- US National Institutes of Health (NIH) [AG03109]
- NIH [AG03109, GM42236, GM33301, HL079442, HL095524]
- Cystic Fibrosis Foundation
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Although the sequence of a protein largely determines its function, proteins can adopt different folding states in response to changes in the environment, some of which may be deleterious to the organism. All organisms - Bacteria, Archaea and Eukarya - have evolved a protein homeostasis, or proteostasis, network comprising chaperones and folding factors, degradation components, signalling pathways and specialized compartmentalized modules that manage protein folding in response to environmental stimuli and variation. Surveying the origins of proteostasis networks reveals that they have co-evolved with the proteome to regulate the physiological state of the cell, reflecting the unique stresses that different cells or organisms experience, and that they have a key role in driving evolution by closely managing the link between the phenotype and the genotype.
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