# OC Root 2nd 3rd 4th PC Gene/Definition OC.335619 Bacteria.345968 Firmicutes.110945 Firmicutes___Clostridia.21783 nth.1633 nth:Nther_1676 thiamine pyrophosphate protein domain protein TPP-binding; K00175 2-oxoglutarate/2-oxoacid ferredoxin oxidoreductase subunit beta [EC:1.2.7.3 1.2.7.11]