# OC Root 2nd 3rd 4th 5th 6th PC Gene/Definition OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Geobacter.7074 Geobacter_sp_.2728 geb.1809 geb:GM18_1850 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 Desulfovibrio_vulgaris.2451 dvu.432 dvu:DVU0432 ech hydrogenase subunit EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 Desulfovibrio_vulgaris.2451 dvl.2491 dvl:Dvul_2503 ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 Desulfovibrio_vulgaris.2451 dvm.1507 dvm:DvMF_1520 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 Desulfovibrio_vulgaris.2451 dvg.401 dvg:Deval_0395 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 Desulfovibrio_desulfuricans.5077 dds.1642 dds:Ddes_1671 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 - dfi.1699 dfi:AXF13_09050 NADH dehydrogenase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3735 - def.855 def:CNY67_04485 NADH-quinone oxidoreductase subunit B; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.3736 - dma.458 dma:DMR_02750 Ech hydrogenase subunit EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.7640 - daf.628 daf:Desaf_0583 NADH-quinone oxidoreductase, B subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.7640 - dgg.111 dgg:DGI_0036 echC; EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.8822 - dsa.3184 dsa:Desal_3235 NADH dehydrogenase (quinone); K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.8822 - dhy.1514 dhy:DESAM_21230 conserved protein of unknown function; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfovibrio.12811 Desulfovibrio_desulfuricans.2962 ddn.2960 ddn:DND132_2994 NADH dehydrogenase (quinone); K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Pseudodesulfovibrio.1214 - das.2325 das:Daes_2373 NADH dehydrogenase (quinone); K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Pseudodesulfovibrio.1214 - dpi.1473 dpi:BN4_11496 EchC; NADH dehydrogenase (Quinone) Ech hydrogenase, subunit EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Pseudodesulfovibrio.1214 - dej.3225 dej:AWY79_16895 NADH:ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Pseudodesulfovibrio.1214 - pprf.2550 pprf:DPRO_2791 NADH dehydrogenase (Quinone); K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Proteobacteria.267582 Deltaproteobacteria.24799 Desulfomicrobium.3628 - doa.713 doa:AXF15_03945 NADH:ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Firmicutes.118182 Firmicutes___Clostridia.40843 Clostridium.34496 Clostridium_sp_.3775 clb.3706 clb:Clo1100_3959 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Firmicutes.118182 Firmicutes___Clostridia.40843 - - cce.3107 cce:Ccel_3369 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456153 Bacteria.430646 Firmicutes.118182 Firmicutes___Clostridia.40843 - - cthd.3402 cthd:CDO33_18815 NADH:ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Firmicutes.305071 Firmicutes___Clostridia.187222 - - tpz.2000 tpz:Tph_c21340 putative ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - det.778 det:DET0862 hydrogenase, group 4, EchC subunit, putative; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - deh.1263 deh:cbdbA844 echC; hydrogenase, group 4, EchC subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - deb.760 deb:DehaBAV1_0780 ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dev.1181 dev:DhcVS_765 echC; hydrogenase, EchC subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - deg.699 deg:DehalGT_0741 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmc.1299 dmc:btf_783 echC; energy converting NiFe hydrogenase electron transferring subunit EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmd.1299 dmd:dcmb_829 echC; Energy converting NiFe hydrogenase electron transferring subunit EchC; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmg.762 dmg:GY50_0775 echC; hydrogenase subunit; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmx.772 dmx:X792_04025 NADH ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmy.806 dmy:X793_04190 NADH ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 Dehalococcoides_mccartyi.2255 - dmz.739 dmz:X794_03825 NADH ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456153 Bacteria.430646 Chloroflexi.5933 Dehalococcoides.644 - - duc.740 duc:UCH007_07270 echC; Ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Hungateiclostridium.3891 - ccl.910 ccl:Clocl_0979 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 - - sgy.1954 sgy:Sgly_2058 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Dehalobacter.761 Dehalobacter_sp_.1811 ded.2692 ded:DHBDCA_p782 Energy-conserving hydrogenase (ferredoxin), subunit C; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Dehalobacter.761 Dehalobacter_sp_.1811 dec.2762 dec:DCF50_p840 Energy-conserving hydrogenase (ferredoxin), subunit C; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Dehalobacter.761 - drs.1522 drs:DEHRE_08345 NADH ubiquinone oxidoreductase; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Dehalobacter.2233 Dehalobacter_sp_.384 ded.1344 ded:DHBDCA_p2225 Energy-conserving hydrogenase (ferredoxin), subunit C; K14088 ech hydrogenase subunit C OC.456154 Bacteria.455822 Firmicutes.127796 Firmicutes___Clostridia.67201 Dehalobacter.2233 Dehalobacter_sp_.384 dec.1356 dec:DCF50_p2235 Energy-conserving hydrogenase (ferredoxin), subunit C; K14088 ech hydrogenase subunit C OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 - - ccel.899 ccel:CCDG5_0945 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - csc.1374 csc:Csac_1536 NADH ubiquinone oxidoreductase, 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - ate.1006 ate:Athe_1084 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - cob.1333 cob:COB47_1441 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - chd.1588 chd:Calhy_1652 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - cow.839 cow:Calow_0902 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - cki.976 cki:Calkr_1073 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - ckn.1535 ckn:Calkro_1610 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.118181 Firmicutes___Clostridia.40842 Caldicellulosiruptor.10 - clc.451 clc:Calla_0502 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 - - tte.167 tte:TTE0125 NuoB; NADH:ubiquinone oxidoreductase 20 kD subunit and related Fe-S oxidoreductases; K00331 NADH-quinone oxidoreductase subunit B [EC:7.1.1.2] OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacter.2400 - tit.1518 tit:Thit_1615 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacter.2400 - tmt.1521 tmt:Tmath_1606 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacter.2400 - twi.161 twi:Thewi_0136 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacterium.1695 Thermoanaerobacterium_thermosaccharolyticum.362 ttm.135 ttm:Tthe_0120 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacterium.1695 Thermoanaerobacterium_thermosaccharolyticum.362 tto.109 tto:Thethe_00114 Ni,Fe-hydrogenase III small subunit OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacterium.1695 - txy.122 txy:Thexy_0108 NADH dehydrogenase (quinone) OC.456155 Bacteria.430647 Firmicutes.133493 Firmicutes___Clostridia.82107 Thermoanaerobacterium.1695 - tsh.666 tsh:Tsac_0677 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456156 Bacteria.451682 Firmicutes.118124 Firmicutes___Clostridia.40684 Hungateiclostridium.2892 Hungateiclostridium_thermocellum.1658 cth.2786 cth:Cthe_3022 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456156 Bacteria.451682 Firmicutes.118124 Firmicutes___Clostridia.40684 Hungateiclostridium.2892 Hungateiclostridium_thermocellum.1658 ctx.571 ctx:Clo1313_0573 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456156 Bacteria.451682 Firmicutes.118124 Firmicutes___Clostridia.40684 Butyrivibrio.678 - bpb.1417 bpb:bpr_I1406 echC; ech hydrogenase subunit C EchC; K14088 ech hydrogenase subunit C OC.456156 Bacteria.451682 Firmicutes.118124 Firmicutes___Clostridia.40684 Butyrivibrio.678 - bhu.1397 bhu:bhn_I1398 Ech hydrogenase subunit EchC; K14088 ech hydrogenase subunit C OC.456156 Bacteria.451682 Firmicutes.118124 Firmicutes___Clostridia.40684 Lachnoclostridium.8146 - cpy.1702 cpy:Cphy_1732 NADH ubiquinone oxidoreductase 20 kDa subunit; K14088 ech hydrogenase subunit C OC.456157 Bacteria.866179 Firmicutes.242141 Firmicutes___Clostridia.95162 Butyrivibrio.4030 - bfi.2076 bfi:CIY_24640 ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456158 Bacteria.1090108 Proteobacteria.577405 Deltaproteobacteria.81398 Geobacter.12744 - gur.2521 gur:Gura_2651 ech hydrogenase subunit C OC.456159 Bacteria.903817 Firmicutes.312282 - - - euc.1165 euc:EC1_17120 ech hydrogenase subunit C; K14088 ech hydrogenase subunit C OC.456160 Bacteria.561958 Proteobacteria.335536 Gammaproteobacteria.216095 - - alv.354 alv:Alvin_0331 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456160 Bacteria.561958 Proteobacteria.335536 Gammaproteobacteria.216095 - - tvi.531 tvi:Thivi_0496 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C OC.456160 Bacteria.561958 Proteobacteria.335536 Gammaproteobacteria.216095 - - tmb.3083 tmb:Thimo_3359 Ni,Fe-hydrogenase III small subunit; K14088 ech hydrogenase subunit C OC.456161 Bacteria.430648 Firmicutes.236340 Firmicutes___Clostridia.83642 - - dau.1012 dau:Daud_1100 NADH ubiquinone oxidoreductase, 20 kDa subunit OC.456161 Bacteria.430648 Firmicutes.236340 Firmicutes___Clostridia.83642 - - adg.534 adg:Adeg_0551 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456162 Bacteria.1262025 - - - - bana.194 bana:BARAN1_0180 MbhJ; Membrane-bound hydrogenase MBH 2, subunit Mbh2J (Hydrogenase subunit, Ni,Fe-hydrogenase III small subunit); K18023 membrane-bound hydrogenase subunit mbhJ [EC:1.12.7.2] OC.456163 Bacteria.582169 Synergistetes.163 - - - aco.1230 aco:Amico_1266 NADH ubiquinone oxidoreductase 20 kDa subunit OC.456163 Bacteria.582169 Synergistetes.163 - - - tli.1165 tli:Tlie_1203 NADH ubiquinone oxidoreductase 20 kDa subunit; K18023 membrane-bound hydrogenase subunit mbhJ [EC:1.12.7.2] OC.456163 Bacteria.582169 Synergistetes.163 - - - amo.1366 amo:Anamo_1450 Ni,Fe-hydrogenase III small subunit; K18023 membrane-bound hydrogenase subunit mbhJ [EC:1.12.7.2] OC.456164 Bacteria.431142 Proteobacteria.581095 Deltaproteobacteria.86496 Pelobacter.5037 - ppd.31 ppd:Ppro_3526 NADH-quinone oxidoreductase, B subunit OC.456164 Bacteria.431142 Proteobacteria.581095 Deltaproteobacteria.86496 Pelobacter.5037 - ppd.31 ppd:Ppro_0593 ech hydrogenase subunit C OC.456164 Bacteria.431142 Chloroflexi.8303 - - - atm.2142 atm:ANT_22050 NADH dehydrogenase (ubiquinone), 20 kDa subunit family protein OC.456164 Bacteria.431142 Chloroflexi.8303 - - - pbf.422 pbf:CFX0092_A0261 putative Ni,Fe-hydrogenase III small subunit OC.456164 Bacteria.431142 Elusimicrobia.831 Endomicrobium.456 - - epo.75 epo:Epro_0037 nuoB; Ni,Fe-hydrogenase III component G; K14088 ech hydrogenase subunit C OC.456164 Bacteria.431142 Elusimicrobia.2312 - - - emi.1043 emi:Emin_1132 NiFe-hydrogenase III small subunit OC.456165 Bacteria.1265091 - - - - cpo.859 cpo:COPRO5265_0922 NADH-quinone oxidoreductase subunit B OC.456166 Bacteria.732890 Bacteroidetes.135351 - - - blq.1128 blq:L21SP5_01259 hycG; Hydrogenase-3 component G