 Xenon interacts with many different receptors and ion channels and like many theoretically multi @-@ modal inhalation <unk> these interactions are likely complementary . Xenon is a high @-@ affinity <unk> @-@ site NMDA receptor antagonist . However , xenon distinguishes itself from other clinically used NMDA receptor antagonists in its lack of <unk> and its ability to inhibit the <unk> of <unk> and nitrous oxide . Unlike <unk> and nitrous oxide , xenon does not stimulate a <unk> <unk> in the nucleus <unk> . Like nitrous oxide and <unk> , xenon activates the two @-@ pore domain potassium channel <unk> @-@ 1 . A related channel <unk> @-@ 3 also implicated in <unk> anesthetic actions is insensitive to xenon . Xenon inhibits <unk> acetylcholine <unk> receptors which contribute to <unk> mediated <unk> . Xenon is an effective inhibitor of plasma membrane Ca2 + <unk> . Xenon inhibits Ca2 + <unk> by binding to a hydrophobic pore within the enzyme and preventing the enzyme from assuming active conformations . 
