So if the inhibitor of some particular enzyme resembles the structure of the substrate that binds into the active side of the enzyme, then what that inhibitor can do is because it has a similar shape to the substrate, it can easily accommodate itself into that structure of the active sites. So we previously saw that a good way to inhibit the activity and the functionality of enzymes is to create an inhibitor that resembles that natural substrate of that particular enzyme. Now because of the argument that we just mentioned earlier. So, since enzymes active sites essentially stabilize the structure of the transition state, then that must imply that a much more effective and a much better inhibitor of an enzyme would be an inhibitor that resembles not the structure of the substrate, but rather the structure of that transition state. And these types of inhibitors are known as transition state analogues or transition state inhibitors. So we see that these transition state analogs are molecules that resemble the structure of the transition state.