# OC Root 2nd 3rd 4th PC Gene/Definition OC.278541 Archaea.17055 Euryarchaeota.16514 Natronolimnobius.47 nag.1040 nag:AArcMg_1041 Phosphoribosylaminoimidazole carboxylase ATPase subunit; K01589 5-(carboxyamino)imidazole ribonucleotide synthase [EC:6.3.4.18] OC.278541 Archaea.17055 Euryarchaeota.16514 Natronolimnobius.47 nan.2536 nan:AArc1_2582 Phosphoribosylaminoimidazole carboxylase (NCAIR synthetase); K01589 5-(carboxyamino)imidazole ribonucleotide synthase [EC:6.3.4.18]