Enzymes: the catalysts of life
Molecular enzymology - Enzymatic catalysis
Article REF: PHA1504 V1
Enzymes: the catalysts of life
Molecular enzymology - Enzymatic catalysis

Authors : Julien DUMOND, Serge KIRKIACHARIAN

Publication date: April 10, 2025 | Lire en français

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1. Enzymes: the catalysts of life

1.1 Enzyme specificities

Fundamentally, an enzyme acts on only one type of substrate and catalyzes a chemical reaction only in a specific way, with a dual specificity: one for the reaction and another for the substrate.

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1.1.1 Reaction specificity

An enzyme catalyzes a specific type of chemical reaction, as illustrated by the following examples. Reaction specificity is not linked to the coenzyme or cofactor, as shown in examples 2 and 3. It is always determined by the apoenzyme representing...

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