Article
Mutations in the voltage-sensing domain affect the alternative ion permeation pathway in the TRPM3 channel.
The Journal of physiology - 1 Jun 2018
Held Katharina, Gruss Fabian, Aloi Vincenzo Davide, Janssens Annelies, Ulens Chris, Voets Thomas, Vriens Joris
Abstract excerpt
KEY POINTS: Mutagenesis at positively charged amino acids (arginines and lysines) (R1-R4) in the voltage-sensor domain (transmembrane segment (S) 4) of voltage-gated Na+ , K+ and Ca2+ channels can lead to an alternative ion permeation pathway distinct from the central pore. Recently, a non-canonical ion permeation pathway was described in TRPM3, a member of the transient receptor potential (TRP) superfamily. The...
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