THIK subfamily has 2 members, THIK1 and THIK 2. THIK 1 forms functional homodimers whereas THIK2 function has not been demonstrated. THIK1 channels are inhibited by halothane. THICK1 channels form K+ leak channels and are not regulated by acidity or alkalanity changes.
potassium channel activity of THIK1 homodimers [plasma membrane]