What is the general location of the three different types of amino acids in the typical soluble protein? In the typical nonsoluble membrane protein? Solution Aminoacids, the monomeric units that link together to form proteins, have a standard structure. The carbon atom of each amino acid is bonded to four various compound groups and ergo is asymmetric. The side chain have R group. Aminoacids could be classified into a few distinct categories based primarily on their solubility in water, which can be influenced by the polarity of their area chains. Proteins with polar side groups tend to be on the surface of proteins; by connecting with water, they make proteins soluble in aqueous solutions. In comparison, amino acids with nonpolar side groups avoid water and aggregate to make the water insoluble core of proteins. The polarity of amino acid side chains thus is one of the forces responsible for shaping the final three-dimensional structure of proteins. Hydrophilic or water-soluble, amino acids have ionized or polar area chains. Hydrophobic amino acids have aliphatic side organizations, which are insoluble or only slightly soluble in water..