# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.278546 Bacteria.1167871 Proteobacteria.699801 Gammaproteobacteria.292630 Gammaproteobacteria___Enterobacteria.110377 lri.2195 lri:NCTC12151_02296 purK_1; N5-carboxyaminoimidazole ribonucleotide synthase; K01589 5-(carboxyamino)imidazole ribonucleotide synthase [EC:6.3.4.18]