Intermediate-conductance K+ (Kcnn4) channels in the apical and basolateral membranes of epithelial cells play important roles in agonist-induced fluid secretion in intestine and colon. channels observed with iberiotoxin (a Kcnma1/large-conductance, Ca2+-activated K+ channel blocker) and apamin (a Kcnn1C3/small-conductance, Ca2+-activated K+ channel blocker) present in the pipette solution exhibited a single-channel conductance of 31 pS with… Continue reading Intermediate-conductance K+ (Kcnn4) channels in the apical and basolateral membranes of