# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.509947 Bacteria.288868 Proteobacteria.126902 Betaproteobacteria.64429 Azoarcus.305 Azoarcus_sp_.10299 azo.559 azo:azo0554 hesB; HesB/yadR/yfhF family protein OC.509947 Bacteria.288868 Proteobacteria.126902 Betaproteobacteria.64429 Azoarcus.305 - aoa.562 aoa:dqs_0564 HesB/yadR/yfhF family protein OC.509947 Bacteria.288868 Proteobacteria.126902 Betaproteobacteria.64429 Azoarcus.305 - acom.3760 acom:CEW83_19570 iron-sulfur cluster assembly accessory protein