Amino Acid Structure Chart
Inquiry
20 Primary Amino Acids
| Amino Acid | 3-Letter | 1-Letter | Amino Acid | 3-Letter | 1-Letter |
| Alanine | Ala | A | Leucine | Leu | L |
| Arginine | Arg | R | Lysine | Lys | K |
| Asparagine | Asn | N | Methionine | Met | M |
| Aspartic Acid | Asp | D | Phenylalanine | Phe | F |
| Cysteine | Cys | C | Proline | Pro | P |
| Glutamic Acid | Glu | E | Serine | Ser | S |
| Glutamine | Gln | Q | Threonine | Thr | T |
| Glycine | Gly | G | Tryptophan | Trp | W |
| Histidine | His | H | Tyrosine | Tyr | Y |
| Isoleucine | Ile | I | Valine | Val | V |
Amino Acid Structure Chart
| Classification | Amino Acid | Formula | Molecular Weight | Isoelectric Point | Structure |
| Aliphatic Amino Acids with Hydrophobic Side Chain | Alanine | C3H7N1O2 | 89.09 | 6.00 |
|
| Isoleucine | C6H13N1O2 | 131.17 | 5.94 |
| |
| Leucine | C6H13N1O2 | 131.17 | 5.98 |
| |
| Valine | C5H11N1O2 | 117.15 | 5.96 |
| |
| Aromatic Amino Acids with Hydrophobic Side Chain | Phenylalanine | C9H11N1O2 | 165.19 | 5.48 |
|
| Tryptophan | C11H12N2O2 | 204.23 | 5.89 |
| |
| Tyrosine | C9H11N1O3 | 181.19 | 5.66 |
| |
| Amino Acids with Neutral Side Chain | Asparagine | C4H8N2O3 | 132.12 | 5.41 |
|
| Cysteine | C3H7N1O2S1 | 121.16 | 5.02 |
| |
| Glutamine | C5H10N2O3 | 146.15 | 5.65 |
| |
| Methionine | C5H11N1O2S1 | 149.21 | 5.74 |
| |
| Serine | C3H7N1O3 | 105.09 | 5.68 |
| |
| Threonine | C4H9N1O3 | 119.12 | 5.64 |
| |
| Amino Acids with Positive Charged Side Chain | Arginine | C6H14N4O2 | 174.2 | 11.15 |
|
| Histidine | C6H9N3O2 | 155.16 | 7.47 |
| |
| Lysine | C6H14N2O2 | 146.19 | 9.59 |
| |
| Amino Acids with Negative Charged Side Chain | Aspartic Acid | C4H7N1O4 | 133.1 | 2.77 |
|
| Glutamic Acid | C5H9N1O4 | 147.13 | 3.22 |
| |
| Unique Amino Acids | Glycine | C2H5N1O2 | 75.07 | 5.97 |
|
| Proline | C5H9N1O2 | 115.13 | 6.30 |
|
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