Enzyme Inhibitor

An enzyme inhibitor is a molecule that binds to an enzyme and decreases or blocks its catalytic activity. Inhibitors interfere with the enzyme's function, either by occupying the active site or by binding elsewhere to alter its function. They are classified as reversible or irreversible, depending on the nature of their interaction with the enzyme. Enzyme inhibitors play crucial roles in biological systems, regulating metabolic pathways, controlling potentially harmful enzymes, and serving as natural toxins. They are also widely used as drugs, pesticides, and research tools.

Inhibition of enzyme activity through active site competition or allosteric modulation.