# OC Root 2nd 3rd 4th PC Gene/Definition OC.252498 Archaea.15263 Euryarchaeota.13507 Ferroplasma.1168 fac.541 fac:FACI_IFERC01G0525 bifunctional phosphoribosyl-AMP cyclohydrolase/phosphoribosyl-ATP pyrophosphatase protein; K11755 phosphoribosyl-ATP pyrophosphohydrolase / phosphoribosyl-AMP cyclohydrolase [EC:3.6.1.31 3.5.4.19] OC.252498 Archaea.15263 Euryarchaeota.13507 Ferroplasma.1168 fai.1345 fai:FAD_1448 bifunctional phosphoribosyl-AMP cyclohydrolase/phosphoribosyl-ATP pyrophosphatase protein; K11755 phosphoribosyl-ATP pyrophosphohydrolase / phosphoribosyl-AMP cyclohydrolase [EC:3.6.1.31 3.5.4.19]