Molecular Fossil Shows How RNA Is Made

Proteins are the indispensible catalytic workhorses, carrying out the processes essential to life in today's sophisticated organisms, but long ago ribonucleic acid (RNA) reigned supreme. Researchers have produced an atomic picture that shows how two of these very old molecules interact with each other and it provides a rare glimpse into the transition from an ancient, RNA-based world to our present, protein-catalyst dominated world.  read more

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