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)
For the first time, scientists have revealed the steps needed to turn on a receptor that helps regulate neuron firing. The findings might help researchers understand and someday treat addiction, psychosis and other neuropsychological diseases.