# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.509915 Bacteria.495577 Proteobacteria.118940 Betaproteobacteria.87921 Rhodoferax.2521 rac.568 rac:RA876_02590 iron-sulfur cluster insertion protein ErpA; K15724 iron-sulfur cluster insertion protein