Enzyme–substrate complexes are held together by

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Enzyme–substrate complexes are held together by

The main idea is that enzyme–substrate binding relies on a mix of interactions, not just one type. When a substrate fits into an enzyme’s active site, it’s held in place by several noncovalent forces that shape and stabilize the complex: hydrogen bonds between polar groups, electrostatic (ionic) attractions between charged regions of the enzyme and substrate, and close van der Waals contacts. In some reactions, there can also be a transient covalent bond formed as part of the catalytic process. Hydrophobic contacts contribute as well, but binding isn’t limited to hydrophobic interactions alone, and it isn’t limited to covalent bonds either. That’s why the best description is that enzyme–substrate complexes are held together by hydrogen bonds, electrostatic attractions, or covalent bonds.

The main idea is that enzyme–substrate binding relies on a mix of interactions, not just one type. When a substrate fits into an enzyme’s active site, it’s held in place by several noncovalent forces that shape and stabilize the complex: hydrogen bonds between polar groups, electrostatic (ionic) attractions between charged regions of the enzyme and substrate, and close van der Waals contacts. In some reactions, there can also be a transient covalent bond formed as part of the catalytic process. Hydrophobic contacts contribute as well, but binding isn’t limited to hydrophobic interactions alone, and it isn’t limited to covalent bonds either. That’s why the best description is that enzyme–substrate complexes are held together by hydrogen bonds, electrostatic attractions, or covalent bonds.

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