Template:Amino acids
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| The 20 Common Amino Acids | ||
|---|---|---|
| Aliphatic: | Valine | Isoleucine | Leucine | Methionine | Alanine | Proline | Glycine | |
| Aromatic: | Phenylalanine | Tyrosine | Tryptophan | Histidine | |
| Polar, uncharged: | Asparagine | Glutamine | Serine | Threonine | |
| Positive charge (pKa): | Lysine (≈10.8) | Arginine (≈12.5) | Histidine (≈6.1) | |
| Negative charge (pKa): | Aspartic acid (≈3.9) | Glutamic acid (≈4.1) | Cysteine (≈8.3) | Tyrosine (≈10.1) | |
| Essential amino acid | Protein | Peptide | Genetic code | Primary structure→ | |
