# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.120488 Bacteria.96185 Firmicutes.233454 Firmicutes___Clostridia.63250 Clostridium.51179 ctyk.2446 ctyk:CTK_C25870 potD; spermidine/putrescine ABC transporter substrate-binding protein OC.120488 Bacteria.96185 Firmicutes.233454 Firmicutes___Clostridia.63250 Coprococcus.3328 coo.454 coo:CCU_06060 Spermidine/putrescine-binding periplasmic protein; K11069 spermidine/putrescine transport system substrate-binding protein