Application
Calyculin A from Discodermia calyx has been used:as an inhibitor of serine-threonine protein phosphatase 2Aas an inhibitor of cyclin D1 phosphatase in human breast cancer cellsas an inhibitor of protein phosphatase 2A (PP2A) and PP1 in mouse melanoma cell lines B16-F0 cells
Biochem/physiol Actions
Inhibitor of protein phosphatases types 1 and 2A; marine toxin, potent tumor promotor.
Calyculin A from Discodermia calyx binds to the okadaic acid receptors. In smooth muscles, it activates calcium channel. Calyculin A regulates protein phosphorylation thereby regulating capacitation in sperm. It enhances phosphorylation of nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) and apoptosis.
Features and Benefits
This compound is featured on the Phosphoprotein Phosphatases (Serine/Threonine) page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
General description
Calyculin A is derived from the marine sponge Discodermia calyx. It corresponds to a molecular weight of 1008 Da.
This product has met the following criteria: