# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.226734 Bacteria.529533 Proteobacteria.265160 Deltaproteobacteria.20176 Lawsonia.408 lip.205 lip:LI0206 predicted Fe-S oxidoreductases; K22227 heme synthase OC.226734 Bacteria.529533 Proteobacteria.265160 Deltaproteobacteria.20176 Lawsonia.408 lir.208 lir:LAW_00209 radical SAM domain-containing protein; K22227 heme synthase