The cryo-electron microscopy structure of an assembly of the WAVE Regulatory Complex and its activator, the Rac GTPase, plus complementary biochemistry and biophysics, reveal a novel activation mechanism involving two distinct Rac binding sites.

Myofibril diameter is set by the controlled oligomerization of the PDZ and LIM domain protein Zasp in Drosophila.

Neurons in the brain of a female mouse that respond to the scent of a given male become suppressed after mating.

A subgroup of the neurons that control muscles becomes less excitable shortly before the symptoms of ALS develop.

A new way to culture and image flowers is uncovering the processes that take place in reproductive cells buried deep in plants.