function:pH-dependent, voltage insensitive, outwardly rectifying potassium channel. Outward rectification is lost at high external K(+) concentrations.,miscellaneous:Inhibited by quinine, quinidine and external acidification.,similarity:Belongs to the two pore domain potassium channel (TC 1.A.1.8) family.,subunit:Homodimer; disulfide-linked.,tissue specificity:Abundant expression in kidney, also detected in liver, placenta and small intestine. In the kidney, expression is restricted to the distal tubules and collecting ducts. Not expressed in proximal tubules or glomeruli.,
Membrane ; Multi-pass membrane protein .
Abundant expression in kidney, also detected in liver, placenta and small intestine. In the kidney, expression is restricted to the distal tubules and collecting ducts (PubMed:9812978). Not expressed in proximal tubules or glomeruli (PubMed:9812978).
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