Table 4.

EXP II and EXP III: Steady-state cell response to bath [K⁺] increase followed by an hyposmotic challenge, obtained with full RVD, without change in K⁺ and Cl⁻ channel density (“no ch”), without change in ${\text{Na}}^{+}-{\text{HCO}}_3^{-}$ cotransporter density (“no NaBic”), and without RVD.

Cell	Control	full RVD	no ch	no NaBic	no RVD
	EXP II: Bath [K+] +15 mM
Volume (%)	100	106	108	113	117
Vbl (mV)	−69	−52	−47	−58	−52
Osm (mosm/(kgH2O))	310	313	313	318	323
[K+] (mM)	159	163	164	168	171
	EXPII: Bath [K+] +25 mM
Volume (%)	100	109	111	121	123
Vbl (mV)	−69	−45	−40	−49	−46
Osm (mosm/(kgH2O))	310	314	316	328	333
[K+] (mM)	159	164	166	175	178
	EXP III: Bath [K+] +15 mM, osm −80 mosm/(kgH2O)
Volume (%)	100	112	117	128	129
Vbl (mV)	−69	−53	−45	−59	−53
Osm (mosm/(kgH2O))	310	300	306	327	330
[K+] (mM)	159	156	161	174	177
	EXPIII: Bath [K+] +25 mM, osm −80 mosm/(kgH2O)
Volume (%)	100	118	122	134	133
Vbl (mV)	−69	−45	−39	−50	−47
Osm (mosm/(kgH2O))	310	306	313	349	346
[K+] (mM)	159	160	166	188	187