Surprising Details Of Evolution Of Protein Translation Revealed

ScienceDaily (Aug. 17, 2008) - A new study of transfer RNA, a molecule that
delivers amino acids to the protein-building machinery of the cell,
challenges long-held ideas about the evolutionary history of protein
synthesis.

In the study, researchers report that the dual functions of transfer RNA
(reading the genetic blueprint for a protein, and adding a specific amino
acid to the protein as it is formed) appear to have originated independently
of one another.

University of Illinois crop sciences professor Gustavo Caetano-Anoll