So Lysine and Phenylalanine are not small ones, this one has a large long one and it's positively charged. Although this one is non polar hydrophobic, it's too large to actually fit into this pocket because these two valleyses block the majority of that pocket. And even though this is a glycine, there's no bond on the carboxyl side. And so nothing will be cleaved on this side by elastase and so we see that two Vallene residues found in the S One pocket of Elastase block off the majority of the pocket in Elastase. And this allows Elastase to only cleave small hydrophobic residues. And so we see that the majority of the seagram protease is found inside our body.