5-<WBR>Dihydroxy-<WBR>Leu-<WBR>Val-<I>erythro</I>-3-Hydroxy-<SC>D</SC>-Asp-Cys-<I>cis</I>-4-Hydroxy-Pro);Cyclo(Ala-<WBR>2-<WBR>Mercapto-<WBR>Trp-<WBR>4;PHALLACIDIN FROM AMANITA PHALLOIDES;CYCLO(ALA-<WBR>2-<WBR>MERCAPTO-<WBR>TRP-<WBR>4;5-<WBR>DIHYDROXY-<WBR>LEU-<WBR>VAL-<I>ERYTHRO</I>-3-HYDROXY-<SC>D</SC>-ASP-CYS-<I>CIS</I>-4-HYDROXY-PRO);PHALLACIDIN;PHALLICIDIN;CYCLO[ALA-2-MERCAPTO-TRP-4,5-DIHYDROXY-LEU-VAL-ERYTHRO-3-HYDROXY-D-ASP-CYS-CIS-4-HYDROXY-PRO];-3-hydroxy-d-alpha-aspartyl-l-cysteinyl-cis-4-hydroxy-l-prolyl)cyclic(2-6)-s ;cyclic(l-alanyl-2-mercapto-l-tryptophyl-4,5-dihydroxy-l-leucyl-l-valyl-erythro
Phallacidin is a natural mycotoxin first isolated from the death cap mushroom, A. phalloides. It binds filamentous actin (F-actin) like phalloidin , but contains a carboxyl group for coupling reactions.