# OC Root 2nd 3rd 4th PC Gene/Definition OC.229484 Archaea.13389 Crenarchaeota.9879 Vulcanisaeta.2051 vdi.587 vdi:Vdis_0597 imidazole glycerol phosphate synthase, glutamine amidotransferase subunit; K02501 imidazole glycerol-phosphate synthase subunit HisH [EC:4.3.2.10]