Now, the question is, why do we have different types of C and proteases inside our body? And the question is, what exactly differentiates Trypsin elastics and Chimera Trypsin if they have the same exact catalytic triad? Well, remember, it's the catalytic triad that gives the enzyme its catalytic power, that gives the protease the ability to cleave those peptide bonds. But it's the shape of that active side, the s one pocket that determines the specificity of that protease, the type of peptide bond it actually breaks. And so the difference between Chima, Trips and Trypsin and Elastase is not in the type of catalytic triad used, but it's in the shape of that particular s one pocket. The structure of that s one pocket, as we'll see in just a moment, as a result of a slight variation in the s one pocket of Trypsin and Elastase, we see that these other CM proteases cleave other amino acids.