How many naturally occurring amino acids are there?
1 Answer
Jul 11, 2017
Twenty two amino acids are naturally incorporated into polypeptides and are called proteinogenic or natural amino acids .
Explanation:
Out of these 20 are encoded by the universal genetic code. These are :
- Alanine.
- Arginine.
- Asparagine.
- Aspartic acid.
- Cysteine.
- Glutamic acid.
- Glutamine.
- Glycine.
- Histidine.
- Isoleucine.
- Leucine.
- Lysine.
- Methionine.
- Phenyl alanine.
- Proline.
- Serine.
- Threonine.
- Tryptophan.
- Tyrosine.
- Valine.
Selenocysteine and Pyrrolysine are encoded by unique synthetic mechanisms.
