Tiny microbes and molecular machines have an outsized impact on human health, and they play key roles in the vast global cycles that shape climate and make carbon and nitrogen available to all living things.
This illustration shows arrestin (yellow), an important type of signaling protein, while docked with rhodopsin (orange), a G protein-coupled receptor.
(Greg Stewart/SLAC National Accelerator Laboratory)
In a major step forward, SLAC’s X-ray laser captures all four stable states of the process that produces the oxygen we breathe, as well as fleeting steps in between. The work opens doors to understanding the past and creating a...