Tetanus is also commonly called lockjaw, because the infection primarily causes muscle contractions in the jaw and neck, but can eventually spread to other parts of the body. Without treatment, tetanus infection can be life-threatening.
Competitive inhibitors. The inhibitor (I) competes with the substrate (S) for the enzyme active site (also known as the S-binding site). Binding of either of these molecules in the active site is a mutually exclusive event. The substrate and inhibitor share a high degree of structural similarity.
Enzyme inhibitors are molecules that interact in some way with the enzyme to prevent it from working in the normal manner. Poisons and drugs are examples of enzyme inhibitors. Inhibitors change the shape of the enzyme and make it nonuasable to a substrate.