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 ‟.