active site
Quick Summary
In chemistry, an active site is a specific region on the surface of an enzyme where a particular molecule, known as a substrate, binds. This binding is crucial because it allows the enzyme to catalyze, or speed up, a specific chemical reaction involving that substrate.1
Enzymes are biological catalysts, primarily proteins, that are essential for the numerous biochemical reactions occurring in living organisms. Each enzyme is highly specific, meaning it typically facilitates only one type of reaction for a particular substrate. The shape of the active site is complementary to the shape of its substrate, often described by the "key-lock" hypothesis, ensuring this specificity. Factors like substrate concentration and the presence of inhibitors can affect how efficiently an enzyme's active site functions.234
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enzymeMechanism of enzyme action…of the enzyme, called the active site, binds to the substrate. The active site is a groove or pocket formed by the folding pattern of the protein. This three-dimensional structure, together with the chemical and electrical properties of the amino acids and cofactors within the active site, permits only a…
Read More…of the enzyme, called the active site, binds to the substrate. The active site is a groove or pocket formed by the folding pattern of the protein. This three-dimensional structure, together with the chemical and electrical properties of the amino acids and cofactors within the active site, permits only a…
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proteinThe role of the active site…of contact is called the active site. Usually, each subunit of an enzyme has one active site capable of binding substrate.
Read More…of contact is called the active site. Usually, each subunit of an enzyme has one active site capable of binding substrate.
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metabolismFine control…between the substrate and the active site is an essential prerequisite for the occurrence of a reaction catalyzed by an enzyme. Interactions at other, so-called regulatory sites on the enzyme, however, do not result in a chemical reaction but cause changes in the shape of the protein; the changes profoundly…
Read More…between the substrate and the active site is an essential prerequisite for the occurrence of a reaction catalyzed by an enzyme. Interactions at other, so-called regulatory sites on the enzyme, however, do not result in a chemical reaction but cause changes in the shape of the protein; the changes profoundly…
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