# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.56981 Bacteria.301746 Proteobacteria.378638 Alphaproteobacteria.197493 Bradyrhizobium.25475 bic.5767 bic:LMTR13_30855 ABC transporter ATP-binding protein; K01996 branched-chain amino acid transport system ATP-binding protein