Table 1.
The sodium transporters in nephron segments.
Segments | Apical Membrane | Basolateral Membrane |
---|---|---|
| ||
Proximal tubule | NHE 3/2 | Na+/K+-ATPase |
Sodium/glucose co-transporter 1/2 | NHE 1/4 | |
Sodium/phosphate co-transporter 1/2a/2c | Sodium/iodide co-transporter | |
Sodium/sulfate co-transporter 1 | Sodium/bicarbonate co-transporter 1 | |
Sodium/monocarboxylate co-transporter 1/2 | ||
Sodium/multivitamine co-transporter | ||
| ||
Loop of Henle | Na+/K+-ATPase | |
Descending limb | NHE 3 | |
Thin ascending limb | Na+/K+/2Cl− cotransporter 2 | NHE 1/4 |
Thick ascending limb | NHE 3/2 | |
| ||
Distal convoluted tubule | Na+/Cl− cotransporter | Na+/K+-ATPase NHE 1/4 |
| ||
Collecting duct system | Epithelial Na+ channel | Na+/K+-ATPase NHE 1/4 |
NHE, Sodium-hydrogen exchanger.