# OC Root 2nd 3rd 4th PC Gene/Definition OC.278541 Archaea.17055 Euryarchaeota.16514 Haloquadratum.1871 hwa.640 hwa:HQ_1635A purK; 5-(carboxyamino)imidazole ribonucleotide synthase; K01589 5-(carboxyamino)imidazole ribonucleotide synthase [EC:6.3.4.18] OC.278541 Archaea.17055 Euryarchaeota.16514 Haloquadratum.1871 hwc.670 hwc:Hqrw_1749 purK; 5-(carboxyamino)imidazole ribonucleotide synthase; K01589 5-(carboxyamino)imidazole ribonucleotide synthase [EC:6.3.4.18]