Tripeptide

A tripeptide is a peptide consisting of three amino acids joined by peptide bonds.

Examples of tripeptides are:


 * Eisenin (pGlu-Gln-Ala-OH) is a peptide with immunological activity that is isolated from the Japanese marine alga, Eisenia bicyclis, which more commonly is known as, Arame
 * GHK-Cu (glycyl- L -histidyl- L -lysine) is a human copper binding peptide with wound healing and skin remodeling activity, which is used in anti-aging cosmetics and more commonly referred to as copper peptide
 * Glutathione (γ- L -Glutamyl- L -cysteinylglycine) is an important antioxidant in animal cells
 * Isoleucine-proline-proline (IPP) found in milk products, acts as an ACE inhibitor
 * Leupeptin (N-acetyl- L -leucyl- L -leucyl- L -argininal) is a protease inhibitor that also acts as an inhibitor of calpain
 * Melanostatin (prolyl-leucyl-glycinamide) is a peptide hormone produced in the hypothalamus that inhibits the release of melanocyte-stimulating hormone (MSH)
 * Ophthalmic acid ( L -γ-glutamyl- L -α-aminobutyryl-glycine) is an analogue of glutathione isolated from crystalline lens
 * Norophthalmic acid (y-glutamyl-alanyl-glycine) is an analogue of glutathione ( L -cysteine replaced by L -alanine) isolated from crystalline lens
 * Thyrotropin-releasing hormone (TRH, thyroliberin or protirelin) ( L -pyroglutamyl- L -histidinyl- L -prolinamide) is a peptide hormone that stimulates the release of thyroid-stimulating hormone and prolactin by the anterior pituitary