Glycyl-prolyl-hydroxyproline

Glycyl-prolyl-hydroxyproline (Gly-Pro-Hyp, Tripeptide-29) is a tripeptide that is derived from collagen. Repeating units of Gly-Pro-Hyp form a major part of collagen protein, and Gly-Pro-Hyp can be readily produced by partial hydrolysis of collagen.