The larvae of an annelid worm use nitric oxide signalling to activate the neural pathways needed to swim away from the harmful ultraviolet light of the sun.
Why do some inhibitors select the on-state in ERK2, a kinase that is involved in many signaling pathways in cells, whereas others bind to more than one conformation?
A range of experiments suggests that creatine, a molecule known for recycling ATP in muscle and brain tissue, may also function as a neurotransmitter in the central nervous system.