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Open Access

Investigation of neuronal cell type-specific gene expression of Ca2+/calmodulin-dependent protein kinase II

Biological Procedures Online3:31079

Received: 22 February 2002

Accepted: 26 March 2002


The promoter activity of the rat Ca2+/calmodulin-dependent protein kinase II gene was analyzed using the luciferase reporter gene in neuronal and non-neuronal cell lines. Neuronal cell type-specific promoter activity was found in the 5′-flanking region of α and β isoform genes of the kinase. Silencer elements were also found further upstream of promoter regions. A brain-specific protein bound to the DNA sequence of the 5′-flanking region of the gene was found by gel mobility shift analysis in the nuclear extract of the rat brain, including the cerebellum, forebrain, and brainstem, but not in that of non-neuronal tissues, including liver, kidney and spleen. The luciferase expression system and gel shift analysis can be used as an additional and better index by which to monitor gene expression in most cell types.

Indexing terms

Ca2+/calmodulin-dependent protein kinase II (CaM kinase II, CaMKII)gene expressionpromoter activitysilencer elementneuronal cellgel shift analysis