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Polysome Fractionation and Analysis of Mammalian Translatomes on a Genome-wide Scale
Published on: May 17, 2014
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Timing is everything: unifying codon translation rates and nascent proteome behavior
Daniel A Nissley1, Edward P O'Brien
1Department of Chemistry, Pennsylvania State University , University Park, Pennsylvania 16802, United States.
Journal of the American Chemical Society
|December 9, 2014
Summary
Altering how quickly ribosomes translate mRNA codons impacts newly synthesized protein behavior. This nonequilibrium process, governed by codon translation rates, influences protein folding, aggregation, and translocation.
Area of Science:
- Molecular Biology
- Biophysics
- Protein Science
Background:
- Ribosome translation speed at specific mRNA positions influences nascent protein properties.
- This phenomenon highlights the nonequilibrium nature of cotranslational processes.
- Codon translation rates are emerging as critical regulators of proteome behavior.
Purpose of the Study:
- To review experimental evidence linking codon translation rates to nascent protein behavior.
- To discuss theoretical frameworks for predicting these effects.
- To explore the implications for protein homeostasis, disease, and biotechnology.
Main Methods:
- Review of experimental studies on codon translation rate effects.
- Discussion of theoretical and computational modeling approaches.
- Analysis of protein cotranslational folding, aggregation, and translocation.
Main Results:
- Codon translation rates demonstrably alter nascent protein folding, aggregation, and translocation.
- Theoretical tools can quantitatively predict the impact of translation rates.
- Evidence supports the role of translation speed in governing proteome behavior.
Conclusions:
- Codon translation rates are a fundamental determinant of nascent protein properties.
- Understanding these dynamics offers insights into protein maturation and disease.
- This knowledge can drive advancements in biotechnology and biopharmaceutical design.
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