# OC Root 2nd 3rd 4th PC Gene/Definition OC.36027 Bacteria.276124 Proteobacteria.9407 Alphaproteobacteria.333412 pht.5136 pht:BLM14_27620 Fe3+/spermidine/putrescine ABC transporter ATP-binding protein; K02052 putative spermidine/putrescine transport system ATP-binding protein