It can expose, as we've seen in the case of Camodulin, hydrophobic regions. And that can be beneficial to that protein. So this can stimulate the activity of target proteins, target enzymes, target pumps, and so forth. Now, let's take a look at this important molecule called calmodul. Now, calmodulen is actually a ubiquitous molecule. And what that means is it's essentially found everywhere in all the cells and many different types of organisms.