Concept 5 Review

Amino Acids Grouped by Polarity

The 20 amino acid side chains confer different properties, including solubility in water. Some side chains are very non-polar; others are polar, positively or negatively charged.

Let's take a quick look at a few examples of amino acids, which are distinguished by their R groups. Two important properties that distinguish them are:

Amino acids (4) w/side chains, tabular format