Current-voltage (I-V) relationship in
EcHKT1-expressing (n = 6),
EcHKT2-expressing (n = 5), and
EcHKT1/EcHKT2 co-expressing oocytes
(n = 8). Solutions contained 1.8
mm CaCl2, 10
mm
MES[2-(N-morpholino)-ethanesulfonic acid]-Tris, 200
mm sorbitol, 1 mm
Na+, and 10 mm
K+ (pH 6.5).