Bouvardin

Bouvardin is a bicyclic hexapeptide isolated from Bouvardia ternifolia. Its chemical formula is C40H48N6O10. It is derived from the amino acid sequence Ala-Ala-Tyr-Ala-Tyr-Tyr. It has demonstrated certain anti-cancerous activities by inhibiting protein synthesis through inhibition of 80S ribosomes (eukaryotic ribosomes).