# OC Root 2nd 3rd 4th PC Gene/Definition OC.411828 Bacteria.152277 Aquificae.624 - aae.496 aae:aq_154 ctaB; cytochrome C oxidase assembly factor; K02257 heme o synthase [EC:2.5.1.141] OC.411828 Bacteria.152277 Aquificae.624 Hydrogenobacter.1479 hth.690 hth:HTH_0697 ctaB; protoheme IX farnesyltransferase; K02257 heme o synthase [EC:2.5.1.141] OC.411828 Bacteria.152277 Aquificae.624 Hydrogenobacter.1479 hte.683 hte:Hydth_0696 protoheme IX farnesyltransferase; K02257 heme o synthase [EC:2.5.1.141] OC.411828 Bacteria.152277 Aquificae.624 Thermocrinis.1530 tal.1458 tal:Thal_1479 protoheme IX farnesyltransferase; K02257 heme o synthase [EC:2.5.1.141] OC.411828 Bacteria.152277 Aquificae.624 Thermocrinis.1840 trd.635 trd:THERU_03280 protoheme IX farnesyltransferase; K02257 heme o synthase [EC:2.5.1.141]