Proteins are among the most important molecular building blocks of life. They are chains of amino acids assembled in our cells by ribosomes, the molecular "protein factories" of our bodies. The ...

Researchers from the University of Arizona have uncovered how a protein complex, known for regulating cell growth and adjusting metabolism, functions in a more complex manner.

A long-standing challenge to evolutionary theory has been whether it can explain the origin of complex organismal features. We examined this issue using digital organisms—computer programs that ...