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. 2020 Apr;88(3):234-242.
doi: 10.1007/s00239-020-09928-2. Epub 2020 Feb 4.

The 3-Minihelix tRNA Evolution Theorem

Zachary F Burton  1
Affiliations

The 3-Minihelix tRNA Evolution Theorem

Zachary F Burton. J Mol Evol. 2020 Apr.

Abstract

Transfer RNA (tRNA) is the central intellectual property in the evolution of life on Earth. tRNA evolved from repeats and inverted repeats of known sequence. The anticodon and the T stem-loop-stems are homologs with significant conserved sequence identity. A number of models have been advanced to explain tRNA evolution. No 2-minihelix model or accretion model (built a stem at a time) can be correct, in part because of anticodon and T stem-loop-stem identity. Only a 3-minihelix model is adequate.

Keywords: 2-minihelix model; 3-minihelix model; Accretion model; tRNA evolution.

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