Collagen protein is composed of three alpha helices, with glycine making up 33% of its amino acid content, proline approximately 10%, and hydroxyproline around 10%.

“so the collagen is um three Alpha helixes so if you think about DNA right it's it's a it's a double helix right so think about three helixes and an alpha Helix just refers to the way a protein is shaped and they are they have a very large amount of glycine so glycine is a non-essential amino acid and every third residue in collagen in the three Alpha helixes every third residue is a glycine molecule so 33% of collagen is glycine and then I want to say 10% is Proline and then another like 10 perish is hydroxyproline”