# OC Root 2nd 3rd 4th PC Gene/Definition OC.204390 Archaea.3951 Euryarchaeota.15087 Natronomonas.1218 nph.460 nph:NP_0786A rpiA; ribose-5-phosphate isomerase; K01807 ribose 5-phosphate isomerase A [EC:5.3.1.6] OC.204390 Archaea.3951 Euryarchaeota.15087 Natronomonas.1218 nmo.56 nmo:Nmlp_1011 rpiA; ribose-5-phosphate isomerase; K01807 ribose 5-phosphate isomerase A [EC:5.3.1.6]