239805
Cyclopiazonic Acid, Penicillium cyclopium
A cell-permeable, reversible inhibitor of sarcoplasmic reticulum Ca2+-ATPase that releases Ca2+ from the same intracellular pools as Thapsigargin.
Synonym(s):
Cyclopiazonic Acid, Penicillium cyclopium, CPA
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About This Item
Empirical Formula (Hill Notation):
C20H20N2O3
CAS Number:
Molecular Weight:
336.38
MDL number:
UNSPSC Code:
12352200
Recommended Products
Quality Level
Assay
≥97% (TLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
color
off-white
solubility
DMSO: 1 mg/mL
chloroform: 10 mg/mL
shipped in
ambient
storage temp.
−20°C
InChI
1S/C20H20N2O3/c1-9(23)14-18(24)17-16-11-8-21-13-6-4-5-10(15(11)13)7-12(16)20(2,3)22(17)19(14)25/h4-6,8,12,16-17,21,25H,7H2,1-3H3/t12-,16+,17+/m1/s1
InChI key
RLOAZVAJNNPPDI-DQYPLSBCSA-N
General description
A cell-permeable, reversible inhibitor of endoplasmic reticulum Ca2+-ATPase that releases Ca2+ from the same intracellular pools as thapsigargin. Mobilizes Ca2+ without increasing the levels of Ins(1,4,5)P3. Also known to inhibit sarcoplasmic reticular Ca2+-ATPase that is distinct from actomyosin ATPase. Bay K 8644 (Cat. No. 196878) can reverse the inhibitory effect of cyclopiazonic acid on the refilling of Ca2+ pools that have been depleted by repetitive stimulation with acetylcholine.
A cell-permeable, reversible inhibitor of sarcoplasmic reticulum Ca2+-ATPase that releases Ca2+ from the same intracellular pools as Thapsigargin (Cat. No. 586005). Inhibits Ca2+ uptake in cultured arterial smooth muscle cells (IC50 = 560 nM). Also known to inhibit sarcoplasmic reticular Ca2+-ATPase that is distinct from actomyosin ATPase.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
Ca2+ uptake in cultured arterial musclue cells
Ca2+ uptake in cultured arterial musclue cells
Product does not compete with ATP.
Reversible: yes
Target IC50: 560 nM inhibiting Ca2+ uptake in cultured arterial smooth muscle cells
Warning
Toxicity: Toxic (F)
Reconstitution
Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.
Other Notes
Badaoui, A., et al. 1995. J. Mol. Cell. Cardiol. 27, 2495.
Elmoselli, A.B., et al. 1995. Mol. Cell. Biochem. 151, 149.
Schaefer, A., et al. 1994. J. Biol. Chem.269, 8786.
Demaurex, N., et al. 1992. J. Biol. Chem.267, 2318.
Low, A.M., et al. 1992. Am. J. Physiol.262, H31.
Kurebayashi, N., and Ogawa, Y. 1991. J. Muscle Res. Cell Motil.12, 355.
Mason, M.J., et al. 1991. J. Biol. Chem.266, 20856.
Elmoselli, A.B., et al. 1995. Mol. Cell. Biochem. 151, 149.
Schaefer, A., et al. 1994. J. Biol. Chem.269, 8786.
Demaurex, N., et al. 1992. J. Biol. Chem.267, 2318.
Low, A.M., et al. 1992. Am. J. Physiol.262, H31.
Kurebayashi, N., and Ogawa, Y. 1991. J. Muscle Res. Cell Motil.12, 355.
Mason, M.J., et al. 1991. J. Biol. Chem.266, 20856.
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Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 2 Oral
Storage Class Code
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Mia S Geromella et al.
STAR protocols, 4(1), 101987-101987 (2023-01-06)
This protocol employs the indo-1 Ca2+ fluorophore to quantify Ca2+ uptake by the sarco(endo)plasmic reticulum Ca2+ ATPase pump in murine muscle homogenates and allows for real-time kinetic measurement of Ca2+ mobilization within the muscle homogenate. This protocol can be easily
Mehmet Şerif Aydın et al.
iScience, 26(10), 107715-107715 (2023-09-13)
Trauma, vascular events, or neurodegenerative processes can lead to axonal injury and eventual transection (axotomy). Neurons can survive axotomy, yet the underlying mechanisms are not fully understood. Excessive water entry into injured neurons poses a particular risk due to swelling
Hepatic SEL1L-HRD1 ER-associated degradation regulates systemic iron homeostasis via ceruloplasmin.
Thepsuwan, et al.
Proceedings of the National Academy of Sciences of the USA, 120, e2212644120-e2212644120 (2023)
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