# OC Root 2nd 3rd 4th PC Gene/Definition OC.277583 Archaea.55165 Euryarchaeota.39541 Aciduliprofundum.73 abi.111 abi:Aboo_0097 Na+/Ca+ antiporter, CaCA family; K07301 cation:H+ antiporter OC.277583 Archaea.55165 Euryarchaeota.39541 Aciduliprofundum.73 acf.886 acf:AciM339_0953 K+dependent Na+ exchanger related-protein; K07301 cation:H+ antiporter