Tripeptide
A tripeptide is a peptide consisting of three amino acids joined by peptide bonds.
Examples of tripeptides are:
- Isoleucine-Proline-Proline (IPP) These Lactotripeptides are responsible for a blood pressure lowering effect
- Glutathione (γ-glutamyl-cysteinyl-glycine) is an antioxidant, protecting cells from toxins such as free radicals
- Glypromate (gly-pro-glu) is a naturally occurring IGF-1 protein fragment under investigation as a neuroprotectant
- 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
- 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
- Leupeptin (N-acetyl-L-leucyl-L-leucyl-L-argininal) is a protease inhibitor that also acts as an inhibitor of calpain
- 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
See also
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