# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.310711 Bacteria.438534 Proteobacteria.94683 Alphaproteobacteria.133425 Rhodovulum.1528 - rsu.3523 rsu:NHU_03875 phosphonate-binding periplasmic protein; K02044 phosphonate transport system substrate-binding protein OC.310711 Bacteria.438534 Proteobacteria.94683 Alphaproteobacteria.133425 Rhodovulum.1528 Rhodovulum_sp_.4401 rhm.269 rhm:B5V46_01235 phosphonate ABC transporter substrate-binding protein; K02044 phosphonate transport system substrate-binding protein