Ready-to-use ELISA kits are available for the detection of Na+/H+ Exchanger-1, an alias of the protein, solute carrier family 9 member A1. The official gene symbol is SLC9A1. The kits can detect several species variants of the protein, including: human. The protein, with a mass of 90.8 kDa and length of 815 residues, is reported to be membrane-associated. It is a member of the Monovalent cation:proton antiporter 1 (CPA1) transporter (TC 2.A.36) family and may be known by other names, including: solute carrier family 9 subfamily A (NHE1 cation proton antiporter 1) member 1, solute carrier family 9 (sodium/hydrogen exchanger) member 1 (antiporter Na+/H+ amiloride sensitive), protein phosphatase 1 regulatory subunit 143, Na-Li countertransporter, Na(+)/H(+) exchanger 1, and sodium/hydrogen exchanger 1, and LIKNS.