Classification of Amino Acids
Although there are many ways to classify amino acids, these molecules can be assorted into six main groups, on the basis of their structure and the general chemical characteristics of their R groups.
| Class | Name of the amino acids |
|---|---|
| Aliphatic | Glycine, Alanine, Valine, Leucine, Isoleucine |
| Hydroxyl or Sulfur-containing | Serine, Cysteine, Threonine, Methionine |
| Cyclic | Proline |
| Aromatic | Phenylalanine, Tyrosine, Tryptophan |
| Basic | Histidine, Lysine, Arginine |
| Acidic and their Amide | Aspartate, Glutamate, Asparagine, Glutamine |
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