Essential and Non-essential Amino Acids
Human body can synthesise ten amino acids, called non-essential amino acids. The remaining ten amino acids required for protein synthesis are not synthesised by body and are called essential amino acids. They are
1. |
Phenylalanine |
2. |
Histidine |
3. |
Tryptophan |
4. |
Valine |
5. |
Methionine |
6. |
Threonine |
7. |
Arginine |
8. |
Leucine |
9. |
Isoleucine |
10. |
Lysine |
Nomenclature
They are known by their common names and abbreviated by first three letters of their common names e. g., glycine as „ gly ‟ and alanine a as „ ala ‟.