Enzyme activators are chemical compounds that increase a velocity of enzymatic reaction. Their actions are opposite to the effect of enzyme inhibitors. ... Cations can bind not only with enzyme but also with the substrate increasing its affinity to the enzyme that activate enzyme.

How do activators affect enzymes?

Enzyme activators are molecules that bind to enzymes and increase their activity. ... In some cases, when a substrate binds to one catalytic subunit of an enzyme, this can trigger an increase in the substrate affinity as well as catalytic activity in the enzyme's other subunits, and thus the substrate acts as an activator.

What causes enzymes to activate?

Enzyme activation can be accelerated through biochemical modification of the enzyme (i.e., phosphorylation) or through low molecular weight positive modulators. Just as with agonists of receptors, it is theoretically possible to bind molecules to enzymes to increase catalysis (enzyme activators).