Definition In biochemistry, a kinase is an enzyme that catalyzes the transfer of phosphate groups from high-energy, phosphate-donating molecules to specific substrates. This process is known as phosphorylation , where the substrate gains a phosphate group and the high-energy ATP molecu ...
Drug repurposing , also called drug rediscovery or drug repositioning, referred to rediscovering a new indication for an existing drug. One of the most famous examples is sildenafil that was intended to treat angina pectoris but to treat erectile dysfunction instead. Other examples incl ...