G-protein coupled receptors regulate hormone secretions in the pancreas ... that have seven membrane-spanning domains connected by intracellular and extracellular domains (Figure 2), and these ...

In multicellular organisms, growth factors, hormones, neurotransmitters ... producing multiple intracellular signals for every one receptor that is bound. Protein kinases such as PKA and PKC ...

A new Salk Institute study suggests estrogen-related receptors could be a key to repairing energy metabolism and muscle fatigue.