| Nomenclature | Sodium/phosphate cotransporter 1 | Sodium/phosphate cotransporter 3 | Sodium/phosphate cotransporter 4 | Sodium/phosphate cotransporter homolog |
| Systematic nomenclature | SLC17A1 | SLC17A2 | SLC17A3 | SLC17A4 |
| Common abbreviation | NPT1 | NPT3 | NPT4 | – |
| HGNC, UniProt | SLC17A1, Q14916 | SLC17A2, O00624 | SLC17A3, O00476 | SLC17A4, Q9Y2C5 |
| Substrates | Cl- 275, probenecid 274, PO34- 275, uric acid 275, penicillin G 274, organic acids 275 | – | – | – |
| Stoichiometry | Unknown | Unknown | Unknown | Unknown |
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