News From the Field
Study of Ribosome Evolution Challenges 'RNA World' Hypothesis
March 12, 2012
In the beginning--of the ribosome, the cell's protein-building workbench--there were ribonucleic acids, the molecules we call RNA that today perform a host of vital functions in cells. And according to a new analysis, even before the ribosome's many working parts were recruited for protein synthesis, proteins also were on the scene and interacting with RNA. This finding challenges a long-held hypothesis about the early evolution of life.
University of Illinois at Urbana-Champaign
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