[Term] id: PR:000044649 name: calcium-activated potassium channel protein def: "A potassium channel protein that is activated by calcium. A calcium-activated potassium channel enables the calcium concentration-regulatable energy-independent passage of potassium ions across a lipid bilayer down a concentration gradient." [PRO:XQ, GO:0015269] comment: Category=family. synonym: "fam:Ca-activ_K_chan" EXACT PRO-short-label [PRO:DAN] intersection_of: PR:000044655 ! potassium channel protein intersection_of: capable_of GO:0015269 ! calcium-activated potassium channel activity