# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.339169 Bacteria.1063716 Proteobacteria.526987 Betaproteobacteria.213661 Polynucleobacter.3560 pnu.1140 pnu:Pnuc_1147 phosphate ABC transporter substrate-binding protein, PhoT family; K02040 phosphate transport system substrate-binding protein