And that inhibitory protein inhibits and deactivates the C three B molecule. And then that molecule is essentially recycled to form something else, perhaps another C Three molecule. So under normal conditions, in the absence of any type of pathogens, this is usually what happens. C Three spontaneously breaks down, but then this is quickly recycled. It's inhibited and then recycled. Now, what happens if we do have some type of pathogen, for example, bacterial cells nearby?