And it's the CTP that basically creates a negative feedback loop that goes back and binds onto the Alastairic sites found on these red regulatory chains. And by binding onto these red regulatory chains, it decreases and inhibits the activity of that enzyme. The question is, how does this actually take place? Well, upon the binding of CTP to the red regulatory chains, what it does is it stabilizes the T state of that enzyme. So it lowers the energy of that T state, it makes it more stable. So as these brown CTP molecules bind onto each one of these regulatory chains, as shown here, it stabilizes the energy of this T state, makes it much more stable, and that shifts the equilibrium from the R state into the T state.