For lycine, it's 10.8, for tyrosine, it's 10.9, and for arginine, it's all the way at 12.5. And what that means is, at the normal physiological PH, these three amino acids will always exist in this form. In the tyrosine case, we have a neutral, non polar sidechain group. In this case, we have a very polar, hydrophilic side chain group because we have those full positive charges. And so at the normal physiological PH, these two amino acids will be able to form ionic bonds, but this one will act as a very hydrophobic molecule. And so it will be found inside that protein structure.