# OC Root 2nd 3rd 4th PC Gene/Definition OC.335619 Bacteria.345968 Firmicutes.288479 Firmicutes___Clostridia.161312 eha.274 eha:Ethha_0232 thiamine pyrophosphate TPP-binding domain-containing protein; K00175 2-oxoglutarate/2-oxoacid ferredoxin oxidoreductase subunit beta [EC:1.2.7.3 1.2.7.11]