... inhibition of ERK1/2 phosphorylation may be lying upstream of ERK1/2.Using a serine/threonine kinase SPA assay kit, thecapability of NAMI-A to affect the ERK1/2 phosphoryla-tion activity was also ... Ventura1,21Department of Biomedical Sciences, Division of Biochemistry, Laboratory of Cardiovascular Research,2Division of Cell Biology,National Institute of Biostructures and Biosystems, and3Department of ... the primaryhereditary cardiomyopathy of the Syrian hamster. I. Regulation of prodynorphin gene expression by nuclear protein kinase C. J. Biol.Chem. 272, 6685–6692.22. Ishizuka, S., Yano, T.,...