# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.336109 Bacteria.288793 Proteobacteria.148769 Alphaproteobacteria.251705 Pelagibacter.907 pel.728 pel:SAR11G3_00730 excinuclease ABC subunit C; K03703 excinuclease ABC subunit C