Membrane proteins constitute an important class of proteins that play crucial roles in various cellular processes. Because of this, they have emerged as attractive targets for drug development. Inhibition of these proteins can modulate their function, potentially leading to therapeutic effects. For example, statins are a class of drugs that inhibit HMG-CoA reductase, a membrane protein critical for cholesterol synthesis. This inhibition lowers cholesterol levels in the blood. Another class of drugs, angiotensin-converting enzyme inhibitors, target the membrane protein ACE, a regulator of blood pressure. Beta blockers work by inhibiting beta-adrenergic receptors, essential membrane proteins in the regulation of heart rate and blood pressure.