Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At2g37390	Protein SODIUM POTASSIUM ROOT DEFECTIVE 2.	No verified direct reference in this release
Arabidopsis	At5g02600	Required for root meristem maintenance after germination.	Arabidopsis NPCC6/NaKR1 is a phloem mobile metal binding protein necessary for phloem function and root meristem maintenance.; 2010; DOI: 10.1105/tpc.110.080010; PMID: 21193571; https://pubmed.ncbi.nlm.nih.gov/21193571/ | NaKR1 regulates long-distance movement of FLOWERING LOCUS T in Arabidopsis.; 2016; DOI: 10.1038/nplants.2016.75; PMID: 27255839; https://pubmed.ncbi.nlm.nih.gov/27255839/
Arabidopsis	At3g53530	Heavy metal-associated protein involved in salt tolerance.	Overexpression of NaKR3 enhances salt tolerance in Arabidopsis.; 2016; DOI: 10.4238/gmr.15016378; PMID: 26909945; https://pubmed.ncbi.nlm.nih.gov/26909945/
Arabidopsis	At5g27690	Heavy-metal-binding protein.	No verified direct reference in this release
Arabidopsis	At1g66240	Plays an important role in copper homeostasis by conferring tolerance to excess of copper and subclinical copper deficiency during vegetative stage.	No verified direct reference in this release