Figure 1. Structure of the active sites in [NiFe]-hydrogenase, [FeFe]-hydrogenase, and [Fe]-hydrogenase Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

Every enzyme has a place in which the molecule fits exactly. This is known as the active site. The active site of the catalase allows the hydrogen peroxide molecule to fit exactly. You could say ...

They speed up the rate of reactions without being used up. Each enzyme has an active site, which is where the reaction takes place. The lock and key model explains how enzymes work: The enzyme is ...

The active site of the enzyme precisely orients amino acids to interact with the target molecule when it enters. This makes it easier for the molecule to undergo a chemical reaction to turn into a ...

Each enzyme molecule has a special place called the active site where another molecule, called the substrate, fits. The substrate goes through a chemical reaction and changes into a new molecule ...

(Image: National Human Genome Research Institute) Enzymes are highly specific to their substrates, the molecules upon which they act. The active site of an enzyme has a unique three-dimensional ...

Life has evolved over billions of years, adapting to the changing environment. Similarly, enzymes—proteins that speed up ...

Enzymes initially developed in high-temperature environments and subsequently adapted to cooler conditions as the Earth underwent a cooling phase.

Enzymes originally evolved in high-temperature environments and later adapted to lower temperatures as Earth cooled. Scientists discovered that a key shift in enzyme function occurred over ...

(THE CONVERSATION) Enzymes are molecular machines that carry out the chemical reactions that sustain all life, an ability that has captured the attention of scientists like me. Consider muscle ...