Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g55470	May act in low affinity electroneutral exchange of protons for cations such as Na(+) or K(+) across membranes.	No verified direct reference in this release
Arabidopsis	At5g27150	Acts in low affinity electroneutral exchange of protons for cations such as Na⁺ or K⁺ across membranes.	Salt tolerance conferred by overexpression of a vacuolar Na+/H+ antiport in Arabidopsis.; 1999; DOI: 10.1126/science.285.5431.1256; PMID: 10455050; https://pubmed.ncbi.nlm.nih.gov/10455050/ | Functional conservation between yeast and plant endosomal Na(+)/H(+) antiporters.; 2000; DOI: 10.1016/s0014-5793(00)01412-5; PMID: 10767428; https://pubmed.ncbi.nlm.nih.gov/10767428/ | Arabidopsis thaliana and Saccharomyces cerevisiae NHX1 genes encode amiloride sensitive electroneutral Na+/H+ exchangers.; 2000; DOI: 10.1042/0264-6021:3510241; PMID: 10998367; https://pubmed.ncbi.nlm.nih.gov/10998367/ | Engineering salt-tolerant Brassica plants: characterization of yield and seed oil quality in transgenic plants with increased vacuolar sodium accumulation.; 2001; DOI: 10.1073/pnas.231476498; PMID: 11606781; https://pubmed.ncbi.nlm.nih.gov/11606781/ | The arabidopsis Na+/H+ exchanger AtNHX1 catalyzes low affinity Na+ and K+ transport in reconstituted liposomes.; 2002; DOI: 10.1074/jbc.m105043200; PMID: 11707435; https://pubmed.ncbi.nlm.nih.gov/11707435/ | Vacuolar cation/H+ exchange, ion homeostasis, and leaf development are altered in a T-DNA insertional mutant of AtNHX1, the Arabidopsis vacuolar Na+/H+ antiporter.; 2003; DOI: 10.1046/j.1365-313x.2003.01871.x; PMID: 14535887; https://pubmed.ncbi.nlm.nih.gov/14535887/ | Expression of an Arabidopsis vacuolar sodium/proton antiporter gene in cotton improves photosynthetic performance under salt conditions and increases fiber yield in the field.; 2005; DOI: 10.1093/pcp/pci201; PMID: 16179357; https://pubmed.ncbi.nlm.nih.gov/16179357/ | The Arabidopsis thaliana proton transporters, AtNhx1 and Avp1, can function in cation detoxification in yeast.; 1999; DOI: 10.1073/pnas.96.4.1480; PMID: 9990049; https://pubmed.ncbi.nlm.nih.gov/9990049/
Arabidopsis	At3g05030	Acts in low affinity electroneutral exchange of protons for cations such as Na⁺ or K⁺ across membranes.	Differential expression and function of Arabidopsis thaliana NHX Na+/H+ antiporters in the salt stress response.; 2002; DOI: 10.1046/j.1365-313x.2002.01309.x; PMID: 12047628; https://pubmed.ncbi.nlm.nih.gov/12047628/
Arabidopsis	At3g06370	May act in low affinity electroneutral exchange of protons for cations such as Na(+) or K(+) across membranes.	No verified direct reference in this release
Rice	Os07g0666900	May act as a vacuolar antiporter mediating low-affinity electroneutral exchange of H⁺ for cations such as Na⁺ and K⁺.	Function, intracellular localization and the importance in salt tolerance of a vacuolar Na(+)/H(+) antiporter from rice.; 2004; DOI: 10.1093/pcp/pch014; PMID: 14988485; https://pubmed.ncbi.nlm.nih.gov/14988485/