# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.210008 Bacteria.450087 Firmicutes.110975 Firmicutes___Clostridia.48427 Hungateiclostridium.2560 Hungateiclostridium_thermocellum.551 cth.1662 cth:Cthe_1754 periplasmic binding protein; K02016 iron complex transport system substrate-binding protein OC.210008 Bacteria.450087 Firmicutes.110975 Firmicutes___Clostridia.48427 Hungateiclostridium.2560 Hungateiclostridium_thermocellum.551 ctx.2314 ctx:Clo1313_2428 periplasmic binding protein; K02016 iron complex transport system substrate-binding protein