So we have the simplest type of amino acid that is actually a chiral. And that's because the side chain group is nothing more than an H added. And so this is an acyl carbon, it will not have an enantomer because of these two identical H atoms found attached to our carbon. Now, because of this very small H atom, because it doesn't have that ch three group like, let's say this one has, this one is not really labeled as a hydrophobic side chain, but because of its small size, it can easily interact with other hydrophobic side chains and it can also interact with hydrophilic side groups. So Glycine is the smallest amino acid. It is a chiral.