Species	Reference gene ID	Possible function	Papers / DOI
Arabidopsis	At1g73980	Exhibits pyrophosphatase activity with stronger affinity for pyrophosphate (PPi), moderate affinity for ATP and ADP, and weak affinity for tripolyphosphate (PPPi).	No verified direct reference in this release
Arabidopsis	At1g26190	Exhibits pyrophosphatase activity with stronger affinity for pyrophosphate (PPi), moderate affinity for ATP and ADP, and weak affinity for tripolyphosphate (PPPi).	Arabidopsis triphosphate tunnel metalloenzyme2 is a negative regulator of the salicylic acid-mediated feedback amplification loop for defense responses.; 2014; DOI: 10.1104/pp.114.248757; PMID: 25185123; https://pubmed.ncbi.nlm.nih.gov/25185123/ | Triphosphate Tunnel Metalloenzyme Function in Senescence Highlights a Biological Diversification of This Protein Superfamily.; 2017; DOI: 10.1104/pp.17.00700; PMID: 28733390; https://pubmed.ncbi.nlm.nih.gov/28733390/