You’ve heard of Generation Z and Generation Alpha, but get ready to usher in a new era in 2025– Generation Beta. Moment kitesurfing Olympian rescues drowning woman India's navy launches ...

In unstimulated cells, the state of G alpha (orange circles) is defined by its interaction with GDP, G beta-gamma (purple circles), and a G-protein-coupled receptor (GPCR; light green loops).

G-protein coupled receptors regulate hormone secretions ... Within islets, beta cells secrete insulin, and alpha cells secrete glucagon. Scientists have identified three additional cell types ...