A new study published in Biochemistry sheds light on how bacteria regulate their genes, challenging long-held assumptions ...

This increase of cyclic AMP leads to the activation of protein kinase A, which inhibits the phosphorylation of myosin and lowers intracellular ionic calcium concentrations, resulting in relaxation.

G protein-coupled receptors (GPCRs) are integral membrane proteins with seven membrane-spanning helices. Upon binding to a ligand – which can range from small molecules like cyclic AMP to ...