| Nomenclature | Sodium/calcium exchanger 1 | Sodium/calcium exchanger 2 | Sodium/calcium exchanger 3 |
| Systematic nomenclature | SLC8A1 | SLC8A2 | SLC8A3 |
| Common abbreviation | NCX1 | NCX2 | NCX3 |
| HGNC, UniProt | SLC8A1, P32418 | SLC8A2, Q9UPR5 | SLC8A3, P57103 |
| Stoichiometry | 3 Na+ (in): 1 Ca2+ (out) or 4 Na+ (in): 1 Ca2+ (out) 211; Reverse mode 1 Ca2+ (in): 1 Na+ (out) | – | – |
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