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The nucleotide and deduced amino acid sequence of cKv4.2. A hydrophilicity profile based on a Kyte and Doolittle (1982) analysis revealed the six transmembrane helices S1 to S6 (underlined) and the conserved pore (H5) region of K+ channel genes. Potential protein kinase phosphorylation sites included PKA (bold), PKC (♣), and the mitogen-activated protein kinase, ERK (arrow). Also, two putative N-glycosylation sites (♦) were identified.
