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Use of Alu Element Containing Minigenes to Analyze Circular RNAs
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Genes on the circular code alphabet.

Christian J Michel1

  • 1Theoretical Bioinformatics, ICube, CNRS, University of Strasbourg, 300 Boulevard Sébastien Brant, 67400 Illkirch, France.

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|April 24, 2021
PubMed
Summary
This summary is machine-generated.

The circular code X and its motifs are fundamental in gene structure and expression across life. This study reveals the circular code

Keywords:
AlphabetCircular codePairing ruleProtein coding geneTransfer RNA geneTrinucleotide

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Area of Science:

  • Genomics
  • Bioinformatics
  • Molecular Biology

Background:

  • X motifs, derived from the circular code X, are prevalent in genes across all domains of life, including bacteria, archaea, and eukaryotes.
  • These motifs play crucial roles in maintaining gene reading frames and regulating gene expression.

Purpose of the Study:

  • To conduct a theoretical study of genes utilizing the circular code alphabet.
  • To investigate the occurrence relation of the circular code X under balanced strand pairing.
  • To explore the potential role of the circular code X in the evolutionary origin of gene structure.

Main Methods:

  • Theoretical analysis of genes based on the circular code alphabet.
  • Statistical analysis of bacterial genes to test occurrence relations.
  • Comparative analysis of circular codes for balanced pairing properties.
  • Examination of tRNA structures using the circular code alphabet.

Main Results:

  • A novel occurrence relation for the circular code X was derived and statistically validated in bacterial genes.
  • The circular code X exhibits the strongest balanced circular code pairing among 216 maximal C3 self-complementary trinucleotide circular codes.
  • Analysis of tRNAs revealed an unexpected stem structure when viewed through the lens of the circular code alphabet.

Conclusions:

  • The circular code X appears to have played a foundational role in constructing early gene structures, potentially outlining the future DNA double helix.
  • The findings suggest the circular code X may have influenced the evolution of genetic coding and structure.
  • The study highlights a new perspective on gene organization and evolution through the circular code framework.