Most abundant amino acids found in collagen;
Most abundant amino acids found in collagen is Glycine Collagen is the most abundant of all human proteins. Around 28 types of collagen are known. Type 1 is most abundant The fold in collagen is because of presence of Glycine. ADDITIONAL READING ON STRUCTURE OF COLLAGEN: Collagen is made up of 3 alpha- chains (not alpha helix). These 3 chains together make a superhelix --> Tropocollagen (a rope like triple helix) Superhelix (right-handed) is oured by Glycine residues. Glycine has the smallest side chain so it fits into the restricted space where three chains of helix come together.
FMGE 2019
Glycine
Proline
Hydroxyproline
Lysine
Glycine