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A Code Within a Code: How Codons Fine-Tune Protein Folding in the Cell.

Anton A Komar1,2,3,4

  • 1Center for Gene Regulation in Health and Disease and Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, OH 44115, USA. a.komar@csuohio.edu.

Biochemistry. Biokhimiia
|September 7, 2021
PubMed
Summary
This summary is machine-generated.

The genetic code uses synonymous codons, not just for amino acids, but to regulate protein folding. Specific codon usage influences translation speed, aiding co-translational protein folding.

Keywords:
co-translational protein foldingcodon usagegenetic codenascent peptidessynonymous codonstranslation kinetics

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • The genetic code translates nucleotide triplets (codons) into amino acids during protein synthesis.
  • There are 64 possible codons, with 61 encoding amino acids and 3 acting as stop signals.
  • The genetic code is redundant, with most amino acids encoded by multiple synonymous codons.

Purpose of the Study:

  • To review findings on the functional implications of synonymous codon usage.
  • To explore how codon choice influences protein folding.
  • To highlight the role of synonymous codons in co-translational protein folding.

Main Methods:

  • Review of existing literature on genetic code and protein synthesis.
  • Analysis of synonymous codon frequencies in mRNA.
  • Investigation of the link between codon usage and protein folding kinetics.

Main Results:

  • Synonymous codons are not used with equal frequency in mRNA.
  • Specific codon choices impact translation kinetics.
  • Strategic placement of synonymous codons facilitates co-translational protein folding.

Conclusions:

  • The genetic code contains auxiliary information beyond amino acid coding.
  • Synonymous codon usage is crucial for fine-tuning protein folding.
  • Understanding codon usage provides insights into protein structure and function.