Extracellular sodium interacts with the HERG channel at an outer pore site.
Mullins FM, Stepanovic SZ, Desai RR, George AL Jr, Balser JR.
Mullins FM, et al. Among authors: balser jr.
J Gen Physiol. 2002 Oct;120(4):517-37. doi: 10.1085/jgp.20028589.
J Gen Physiol. 2002.
PMID: 12356854
Free PMC article.
Most voltage-gated K(+) currents are relatively insensitive to extracellular Na(+) (Na(+)(o)), but Na(+)(o) potently inhibits outward human ether-a-go-go-related gene (HERG)-encoded K(+) channel current (Numaguchi, H., J.P. Johnson, Jr., C.I. Petersen, and J.R. Balser …
Most voltage-gated K(+) currents are relatively insensitive to extracellular Na(+) (Na(+)(o)), but Na(+)(o) potently inhibits outward human …