# OC Root 2nd 3rd 4th PC Gene/Definition OC.502147 Archaea.4530 Euryarchaeota.13086 Methanosphaera.565 mst.916 mst:Msp_0986 purA; PurA; K01939 adenylosuccinate synthase [EC:6.3.4.4] OC.502147 Archaea.4530 Euryarchaeota.13086 Methanosphaera.565 metb.160 metb:AW729_00100 adenylosuccinate synthetase; K01939 adenylosuccinate synthase [EC:6.3.4.4]