Americans James Rothman and Randy Schekman and German-born researcher Thomas Suedhof won the 2013 Nobel Prize in medicine on Monday for discoveries on how hormones, enzymes and other key substances are transported within cells.
The Nobel committee said their research on "vesicle traffic" — the transport system of our cells — helped scientists understand how "cargo is delivered to the right place at the right time" inside cells.
Disturbances to the system can contribute to diabetes and neurological and immunological disorders, the committee said.
Rothman, 62, is a professor at Yale University while Schekman, 64, is at the University of California, Berkeley. Suedhof, 57, joined Stanford University in 2008.