# OC Root 2nd 3rd PC Gene/Definition OC.229443 Bacteria.301392 Actinobacteria.265359 aym.2217 aym:YM304_22630 hisH; imidazole glycerol phosphate synthase subunit HisH; K02501 imidazole glycerol-phosphate synthase subunit HisH [EC:4.3.2.10]