Scientists at Memorial Sloan-Kettering Cancer Center in New York and at IRB Barcelona reveal the mechanism of action of a protein that is essential for life and is associated with disease. Researchers headed by Joan Massagué at Memorial Sloan-Kettering Cancer Center (MSKCC) in New York and by MarÃ*a MacÃ*as at the Institute for Research in Biomedicine (IRB Barcelona) have identified a complex mechanism by which some proteins that are essential for life, called Smads, regulate the activity of genes associated with cancer... 
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