Which amino acids are present in collagen?
Glycine and cysteine
Glycine and proline
Glycine and arginine
Arginine and tryptophan
The amino acid present in large quantities in collagen are GLYCINE, PROLINE and HYDROXYPROLINE.
Approximately 1/3rd of the amino acid are contributed by Glycine i.e every 3rd amino acid in collagen is GLYCINE.
Reference :- Satyanarayana 4th Edition, Pg no. 488