Now, the question is what activates the trypsin itself? Well, the cells of our body basically produce a special type of enzyme known as anterappeptidase. So it's the anteripeptidase that is produced by our body that actually activates trypsin from tryptinogen. Remember, tryptogen is the xiaomogen, the inactive form of trypsin. And when anteripeptidase basically proteolytically cleaves a bond in trypsin, the entire structure of the trips, ingen or not trypsin tryptogen, the entire structure of the trypsinogen changes and that creates the proper confirmation of the active side that now allows that trips and to basically carry out its activity. And what trypsin does is it activates not only for other different xiaomages, but it also activates itself.