# OC Root 2nd 3rd PC Gene/Definition OC.229474 Archaea.35968 Euryarchaeota.9962 mla.453 mla:Mlab_0411 imidazole glycerol phosphate synthase subunit hisH; K02501 imidazole glycerol-phosphate synthase subunit HisH [EC:4.3.2.10]