Tocris Bioscience
Okadaic acid
1136
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Protein phosphatase 1 and 2A regulate phosphorylation of CaMKII in cardiomyocytes. To prove the role of PP1/2A in this signaling, we used Okadaic acid, a non-selective PP1 and PP2A inhibitor.
Cell culture
HL-1 cardioymocytes
N/A
HL-1 cardiomyocytes were treated with 100 nM fostriecin, 100 nM Okadaic acid or 50 nM 8-bromo-cAMP for 30 min followed by Western blot analysis for pCaMKII expression.
Worked as expected.
Okadaic acid significantly increased phosphorylation of CaMKII; indicating a major role of PP1 in CaMKII dephosphorylation.