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Small conductance calcium-activated potassium (SK) channels are important in controlling neuronal excitability and three SK channels have been identified to date. In the present study, we report the first quantitative analysis of SK1, SK2 and SK3 expression in human brain using TaqMan RT-PCR on a range of human brain and peripheral tissue samples. SK1 expression is restricted to the brain whereas SK2 and SK3 are more widely expressed.
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