|Superclasses:||an amino acid or its derivative → an amino acid|
This class stands for all of the polar amino acids. The class contains both α and non-α amino acids.
Amino acids with polar side groups form hydrogen bonds with water molecules, and are classified as hydrophilic. Polar amino acids that have substituents carrying either negative or positive charges in aqueous solution at neutral pH are strongly hydrophilic.
In Reactions of unknown directionality:
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