A. Schematic description of PP2Ce protein with signal peptide sequence (aa20-40), transmembrane domain, and conserved PP2C phosphatase activity domain highlighted. B. Northern-blot analysis of PP2Ce mRNA expression in different tissues from adult mice with significant expression detected in in brain, heart and diaphragm. C. Immunohistochemistry results displayed PP2Ce (green) was co-localized with SERCA2a (red) in adult rabbit ventricular cardiomyocytes as supported in merged image and line-scanning intensity analysis. D. Relative expression of PP2Ce mRNA detected by qRT- PCR in heart samples from ischemic cardiomyopathy (ICM, n=3) and dilated cardiomyopathy (DCM, n=3) comparing with non-heart failure (normal, n=3). *: p< 0.05 vs. normal.