# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.283562 Bacteria.86554 Firmicutes.258100 Firmicutes___Clostridia.118824 Desulfitobacterium.7853 dmt.977 dmt:DESME_05170 transcriptional regulator; K21703 LysR family transcriptional regulator, low CO2-responsive transcriptional regulator