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The genetic information stored in DNA is "decoded" into proteins through the process of translation
Although the evolution of PTC formation has been thoroughly documented, how ribosomes develop into functional entities and become essential components of protein synthesis is poorly understood
A team of scientists at Tokyo University of Science, led by Professor Koji Tamura, decided to solve this puzzle with the lens of biological evolutionary continuity
The idea arose after a closer look at the crystal structure of the 70S ribosome-tRNA complex in Thermus thermophilus, a bacterium often used in genetic studies
They first attempted to form peptide bonds between two alanine-specific small helices in the presence of fragments of ribosomal RNA
This finding undoubtedly hints at the possibility that the small helix binds to the original PTC
Future applications of this research -- opening exciting avenues for evolutionary RNA biology -- are manifold
Mai Kawabata, Kentaro Kawashima, Hiromi Mutsuro-Aoki, Tadashi Ando, Takuya Umehara, Koji Tamura.