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  • 208851 - Calyculin A, Discodermia calyx - CAS 101932-71-2 - Calbiochem

208851 Sigma-Aldrich

Calyculin A, Discodermia calyx - CAS 101932-71-2 - Calbiochem

Calyculin A, CAS 101932-71-2, is a cell-permeable inhibitor of protein phosphatase 2A (IC₅₀ = 0.5-1 nM) and protein phosphatase 1 (PP1; IC₅₀ = 2 nM).

Synonym: Calyculin A, Discodermia calyx - CAS 101932-71-2 - Calbiochem

  • CAS Number 101932-71-2

  • Empirical Formula (Hill Notation) C50H81N4O15P

  • Molecular Weight 1009.17

  •  MDL number MFCD06795864

  •  NACRES NA.77



Quality Level   100
assay   ≥98% (HPLC)
form   crystalline powder (white)
  film (Clear)
mfr. no.   Calbiochem®
storage condition   OK to freeze
  protect from light
storage conditions   -20C
solubility   ethanol: 2 mg/mL
  DMSO: soluble
shipped in   ambient
InChI   1S/C50H81N4O15P/c1-29(20-22-51)16-14-17-30(2)32(4)24-33(5)42(57)35(7)38(55)25-41(65-13)45-46(69-70(61,62)63)49(8,9)50(68-45)26-39(56)34(6)40(67-50)19-15-18-36-27-66-48(53-36)31(3)21-23-52-47(60)44(59)43(58)37(28-64-12)54(10)11/h14-18,20,24,27,31,33-35,37-46,55-59H,19,21,23,25-26,28H2,1-13H3,(H,52,60)(H2,61,62,63)/b16-14+,18-15+,29-20-,30-17+,32-24+/t31-,33+,34+,35+,37-,38-,39-,40+,41-,42+,43-,44-,45+,46-,50-/m0/s1


General description

A cell-permeable inhibitor of protein phosphatase 2A (PP2A; IC50 = 0.5-1 nM) and protein phosphatase 1 (PP1; IC50 = 2 nM). A non-phorbol ester type tumor promoter that induces oxidative DNA damage. Selectively increases the efficacy of AMPA receptor-mediated synaptic transmission at excitatory synapses. Also known to prevent γ-radiation induced apoptosis in Burkitt’s lymphoma cell line BM13674. Also available as a 100 µM solution in DMSO (Cat. No. 508226).


10 μg in Glass bottle

Biochem/physiol Actions

Cell permeable: yes

Primary Target

Product does not compete with ATP.

Reversible: no

Target IC50: 0.5-1 nM and 2 nM against protein phosphatase 2A (PP2A) and protein phosphatase 1 (PP1)


Packaged under inert gas


Toxicity: Toxic (F)


Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 12 months at 4°C.

Other Notes

Due to the nature of the Hazardous Materials in this shipment, additional shipping charges may be applied to your order. Certain sizes may be exempt from the additional hazardous materials shipping charges. Please contact your local sales office for more information regarding these charges.

Murakami, N., et al. 1994. Neurosci. Lett. 176, 181.
Takeuchi, T., et al. 1994. Biochem. Biophys. Res. Commun. 205, 1803.
Figurov, A., et al. 1993. Eur. J. Neurosci. 5,1083.
Song, Q., and Lavin, M.F. 1993. Biochem. Biophys. Res. Commun.190, 47.
Gopalakrishna, R., et al. 1992. Biochem. Biophys. Res. Commun.189, 950.
Carl, A., et al. 1991. Am. J. Physiol.261, C387.
Suganuma, M., et al. 1990. Cancer Res.50, 3521.
Cohen, P. 1989. Annu. Rev. Biochem. 58, 453.
Cohen, P., et al. 1989. J. Biol. Chem.264, 21435.
Ishihara, H., et al. 1989. Biochem. Biophys. Res. Commun.159, 871.
Kato, Y., et al. 1988. J. Org. Chem.53, 3930.
Kato, Y., et al. 1986. J. Am. Chem. Soc.108, 2780.

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