# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.164575 Bacteria.388035 Cyanobacteria.60983 Synechococcus.7834 Synechococcus_sp_.1691 cya.345 cya:CYA_0339 trpB; tryptophan synthase, beta subunit; K01696 tryptophan synthase beta chain [EC:4.2.1.20] OC.164575 Bacteria.388035 Cyanobacteria.60983 Synechococcus.7834 Synechococcus_sp_.1691 cyb.1442 cyb:CYB_1508 trpB; tryptophan synthase, beta subunit; K01696 tryptophan synthase beta chain [EC:4.2.1.20]