# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.40379 Bacteria.24314 Proteobacteria.131459 Betaproteobacteria.227472 Variovorax.10823 Variovorax_sp_.3821 vaa.3768 vaa:AX767_19905 peptide ABC transporter ATP-binding protein; K02031 peptide/nickel transport system ATP-binding protein