Adaptive translation as a mechanism of stress response and adaptation
Published Date:Aug 28 2013
Source:Annu Rev Genet. 47:121-137.
Adaptive Translation: Synthesis Of Mutant Proteins That Benefit The Cell
Gene Expression Regulation
Transfer RNA Aminoacylation
Funding:DP1 GM105386/GM/NIGMS NIH HHS/United States
DP1GM105386/DP/NCCDPHP CDC HHS/United States
Description:The composition of the cellular proteome is commonly thought to strictly adhere to the genetic code. However, accumulating evidence indicates that cells also regulate the synthesis of mutant protein molecules that deviate from the genetic code. Production of mutant proteins generally occurs when cells are stressed or when they undergo environmental adaptation, but production varies in amounts and specificity. The deliberate synthesis of mutant proteins suggests that some of these proteins can be useful in cellular stress response and adaptation. This review describes the occurrence of, the translation mechanisms for, and the functional hypotheses on regulated synthesis of mutant proteins.
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