Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At5g01490	Vacuolar cation/proton exchanger (CAX).	Enhanced Cd2+ -selective root-tonoplast-transport in tobaccos expressing Arabidopsis cation exchangers.; 2007; DOI: 10.1007/s00425-006-0352-7; PMID: 16845524; https://pubmed.ncbi.nlm.nih.gov/16845524/
Arabidopsis	At2g38170	Vacuolar cation/proton exchanger (CAX).	The Arabidopsis cax1 mutant exhibits impaired ion homeostasis, development, and hormonal responses and reveals interplay among vacuolar transporters.; 2003; DOI: 10.1105/tpc.007385; PMID: 12566577; https://pubmed.ncbi.nlm.nih.gov/12566577/ | Mutations in the Ca2+/H+ transporter CAX1 increase CBF/DREB1 expression and the cold-acclimation response in Arabidopsis.; 2003; DOI: 10.1105/tpc.015248; PMID: 14630965; https://pubmed.ncbi.nlm.nih.gov/14630965/ | Functional association of Arabidopsis CAX1 and CAX3 is required for normal growth and ion homeostasis.; 2005; DOI: 10.1104/pp.105.061218; PMID: 16055687; https://pubmed.ncbi.nlm.nih.gov/16055687/
Arabidopsis	At3g51860	Vacuolar cation/proton exchanger (CAX).	Functional association of Arabidopsis CAX1 and CAX3 is required for normal growth and ion homeostasis.; 2005; DOI: 10.1104/pp.105.061218; PMID: 16055687; https://pubmed.ncbi.nlm.nih.gov/16055687/
Rice	Os01g0557500	Vacuolar cation/proton exchanger (CAX).	Expression profile of the genes for rice cation/H+ exchanger family and functional analysis in yeast.; 2005; DOI: 10.1093/pcp/pci173; PMID: 16043430; https://pubmed.ncbi.nlm.nih.gov/16043430/
Rice	Os05g0594200	Vacuolar cation/proton exchanger (CAX).	Expression profile of the genes for rice cation/H+ exchanger family and functional analysis in yeast.; 2005; DOI: 10.1093/pcp/pci173; PMID: 16043430; https://pubmed.ncbi.nlm.nih.gov/16043430/