Amino acids are the smallest units of protein. They are organic molecule smade up of amine and carboxylic acid functional groups. An amino acid is composed of nitrogen, carbon, oxygen, and hydrogen molecules.
Table: List of amino acids (AA), their symbols and abbrevations.
| Amino acid | Abbreviation | Symbol |
|---|---|---|
| Phenylalanine | Phe | F |
| Leucine | Leu | L |
| Serine | Ser | S |
| Tyrosine | Tyr | Y |
| Cysteine | Cys | C |
| Tryptophan | Trp | W |
| Leucine | Leu | L |
| Proline | Pro | P |
| Histidine | His | H |
| Glutamine | Gln | Q |
| Arginine | Arg | R |
| Isoleucine | Ile | I |
| Methionine | Met | M |
| Threonine | Thr | T |
| Asparagine | Asn | N |
| Lysine | Lys | K |
| Serine | Ser | S |
| Arginine | Arg | R |
| Valine | Val | V |
| Alanine | Ala | A |
| Aspartate | Asp | D |
| Glutamate | Glu | E |
| Glycine | Gly | G |