Title : Ion selectivity filter regulates local anesthetic inhibition of G-protein-gated inwardly rectifying K+ channels.

Pub. Date : 2001 Feb

PMID : 11159438






1 Functional Relationships(s)
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1 Mutation of two amino acids that are unique in the pore-loop complex of GIRK1 (F137S and A143T) restores K+ selectivity and eliminates the inhibition by extracellular local anesthetics, suggesting that the pore-loop complex prevents QX-314 from reaching the intrapore site. QX-314 potassium inwardly rectifying channel subfamily J member 3 Homo sapiens