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Chemical Triphosphorylation of Oligonucleotides
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Selection-diversification interplay in oligonucleotide chemical evolution.

Jiro Kakizaki1, Ryo Mizuuchi1,2

  • 1Department of Electrical Engineering and Bioscience, Faculty of Science and Engineering, Waseda University, Tokyo 162-8480, Japan.

Biophysics and Physicobiology
|February 9, 2026
PubMed
Summary
This summary is machine-generated.

The "RNA world" hypothesis suggests RNA preceded proteins. Balanced oligonucleotide diversity, not too high or low, was crucial for catalytic RNA (ribozyme) emergence and evolution.

Keywords:
RNA worldchemical evolutionorigins of liferibozymesequence diversity

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Area of Science:

  • Origin of Life studies
  • Biochemistry
  • Evolutionary Biology

Background:

  • The

Purpose of the Study:

  • To review the chemical evolution of oligonucleotides and their sequence diversity.
  • To explore the relationship between oligonucleotide diversity and the emergence of catalytic RNAs (ribozymes).

Main Methods:

  • Literature review of chemical evolution and nonenzymatic reactions.
  • Discussion of experimental strategies combining DNA and protein enzymes for studying oligonucleotide dynamics.

Main Results:

  • Oligonucleotide chemical evolution likely involved selective enrichment and diversification.
  • Balanced sequence diversity is more favorable for ribozyme formation than extreme diversity.

Conclusions:

  • The interplay of enrichment and diversification shaped oligonucleotide pools across different environments and timescales.
  • Future research using combined DNA and protein enzyme systems may offer insights into oligonucleotide compositional dynamics over longer evolutionary periods.