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 ...

This transformation enables the enzyme to better bind with its substrate (light pink puzzle piece). In contrast, an inhibitor molecule (pink circle) can prevent the interaction of an enzyme with ...

Our immune systems weaken as we get older, making fewer cells that fight infection and help us recover from illness and ...

New research led by the University of Portsmouth has revealed how puppetry and other creative methods can effectively make ...

A continued increase in pH results in a sharp decrease in activity as the enzyme’s active site changes shape. It is now denatured. As the substrate concentration increases so does the rate of ...

However, it is safe to say that no enzyme is perfect in the sense of catalyzing only a single reaction with a single substrate. For enzymes such as P450s and glutathione S-transferases that are ...

A research team at the Institute for Basic Science (IBS) has identified a previously unknown enzyme, SIRT2, that plays a key ...

Recently, Professor Frédéric Veyrier at the Institut national de la recherche scientifique (INRS) and his team developed a new genetic tool based on a family of specific enzymes called Ssn that allows ...