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Deciphering the rationale behind specific codon usage pattern in extremophiles.

Mohd Faheem Khan1, Sanjukta Patra2

  • 1Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.

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Summary
This summary is machine-generated.

Extremophiles exhibit unique codon usage patterns, differing from non-extremophiles. Understanding these genetic code preferences aids in optimizing protein expression for extreme environments.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • Protein stability is influenced by genetic factors, including codon composition.
  • Organismal codon selectivity varies between normal and extremophilic environments.

Purpose of the Study:

  • To analyze and detail codon usage patterns across six classes of extremophiles.
  • To investigate the harmony and variations in codon selectivity among extremophiles.

Main Methods:

  • Analysis of homologous gene datasets from various extremophile-non-extremophile pairs.
  • Application of relative abundance analysis, nucleotide composition analysis, and machine learning algorithms.

Main Results:

  • Identified specific preferred codons for thermophiles (AGG), mesophiles/psychrophiles (CAA), acidophiles (TGG), alkaliphiles (GAG), and halophiles (GAC).
  • Observed distinct trends in GC-rich and G/C-ending codon preferences across different extremophile groups.
  • Codon usage patterns showed harmony within extremophiles but differed from non-extremophiles.

Conclusions:

  • Extremophile codon usage patterns are distinct and exhibit internal harmony.
  • These findings are valuable for heterologous expression of extremophilic proteins through codon optimization.