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Globular proteins are folded such that their tertiary structure consists of the polar, or hydrophilic, amino acids arranged on the outside and the nonpolar, or hydrophobic, amino acids on the inside of the three-dimensional shape. This arrangement is responsible for the solubility of globular proteins in water.
This means it will most often be found in the internal regions of a globular protein in an aqueous solution, as it will become buried during the hydrophobic collapse of the early stages of protein folding. There will be exceptions to this when the majority of amino acids near it in the polypeptide chain are hydrophilic.Serine has a polar hydroxyl group, making it slightly hydrophilic. You would therefore expect it to appear on the surface of the protein more often, or lining aqueous channels.It is only a little hydrophilic though, so it would not be surprising to find a more even distribution of serine around both the internal regions and external surfaces of the protein.nzymes, some hormones such as insulin, antibodies and haemoglobin are all examples of globular proteins. Also collagen is a globular protein. 20 people found this useful. Edit. Share to: 1  The Five Major Parts of the Brain At its most basic, the brain controls the body.