# OC Root 2nd 3rd 4th 5th PC Gene/Definition OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mja.1465 mja:MJ_1446 cytochrome-c3 hydrogenase, gamma chain; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mfe.985 mfe:Mefer_1011 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mvu.1153 mvu:Metvu_1175 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulphur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mfs.888 mfs:MFS40622_0907 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mif.568 mif:Metin_0566 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanocaldococcus.1537 - mjh.567 mjh:JH146_0569 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 - - mig.642 mig:Metig_0662 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 Methanococcus_maripaludis.41 mmp.919 mmp:MMP0919 2Fe-2S Ferredoxin:Oxidoreductase FAD/NAD(P)-binding:NADH:cytochrome b5 reductase (CBR); K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 Methanococcus_maripaludis.41 mmq.724 mmq:MmarC5_0726 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 Methanococcus_maripaludis.41 mmx.1711 mmx:MmarC6_1736 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 Methanococcus_maripaludis.41 mmz.172 mmz:MmarC7_0166 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 Methanococcus_maripaludis.41 mmd.1034 mmd:GYY_05315 dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.3565 - mae.1346 mae:Maeo_1373 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.1211 - mvn.218 mvn:Mevan_0212 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanococcus.4164 - mvo.855 mvo:Mvol_0941 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulfur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 - - mok.641 mok:Metok_0663 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanothermobacter.1626 - mth.235 mth:MTH_1212 cytochrome-c3 hydrogenase, gamma subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanothermobacter.1626 - mmg.1565 mmg:MTBMA_c15970 pyrK; predicted dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanothermobacter.1626 Methanothermobacter_sp_.82 metc.1098 metc:MTCT_1104 dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanothermobacter.1626 - mwo.1572 mwo:MWSIV6_1604 pyrK; putative dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit {ECO:0000255|HAMAP-Rule:MF_01211}; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanothermobacter.1626 Methanothermobacter_sp_.82 mete.1151 mete:tca_01169 hypothetical protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanosphaera.464 - mst.1321 mst:Msp_1420 pyrK; PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanosphaera.464 - metb.1484 metb:AW729_08420 dihydroorotate dehydrogenase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 - msi.1036 msi:Msm_1043 dihydroorotate dehydrogenase electron transfer subunit, PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 - mru.1917 mru:mru_1985 pyrK; dihydroorotate dehydrogenase electron transfer subunit PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 Methanobrevibacter_sp_.1527 meb.1463 meb:Abm4_1558 pyrK; dihydroorotate dehydrogenase electron transfer subunit PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 - mmil.1884 mmil:sm9_2056 pyrK; dihydroorotate dehydrogenase electron transfer subunit PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 Methanobrevibacter_sp_.3214 meye.1669 meye:TL18_09460 dihydroorotate dehydrogenase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobrevibacter.680 - mol.1388 mol:YLM1_1424 dihydroorotate dehydrogenase electron transfer subunit PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 - mel.373 mel:Metbo_0308 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulfur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 - mew.2011 mew:MSWAN_2116 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulfur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 Methanobacterium_sp_.1721 meth.1698 meth:MBMB1_1747 pyrK; putative dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 Methanobacterium_formicicum.1403 mfc.315 mfc:BRM9_0321 pyrK; dihydroorotate dehydrogenase electron transfer subunit PyrK; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 Methanobacterium_formicicum.1403 mfi.963 mfi:DSM1535_0983 pyrK; putative dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 - mcub.1951 mcub:MCBB_2061 pyrK; putative dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit {ECO:0000255|HAMAP-Rule:MF_01211}; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 - msub.1493 msub:BK009_07775 dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 Methanobacterium.715 Methanobacterium_sp_.2628 metn.665 metn:BK008_03435 dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3763 - - mfv.1139 mfv:Mfer_1174 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Archaeoglobus.2608 Archaeoglobus_fulgidus.1697 afu.520 afu:AF_0528 cytochrome-c3 hydrogenase, subunit gamma; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Archaeoglobus.2608 Archaeoglobus_fulgidus.1697 afg.507 afg:AFULGI_00005370 2-polyprenylphenol hydroxylase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Archaeoglobus.1779 - ave.1725 ave:Arcve_1819 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Archaeoglobus.1779 - ast.399 ast:Asulf_00377 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - fpl.901 fpl:Ferp_0943 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulphur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Geoglobus.1272 - gac.655 gac:GACE_0677 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Geoglobus.1272 - gah.1899 gah:GAH_02004 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 - mac.617 mac:MA_0584 sulfhydrogenase II, subunit g; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_barkeri.494 mba.1432 mba:Mbar_A1467 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_barkeri.494 mby.429 mby:MSBRM_0426 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_barkeri.494 mbw.3234 mbw:MSBRW_3260 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_barkeri.494 mbar.1944 mbar:MSBR2_1956 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_barkeri.5926 mbak.1995 mbak:MSBR3_2001 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_mazei.773 mma.1737 mma:MM_1746 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_mazei.773 mmaz.1707 mmaz:MmTuc01_1825 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_mazei.773 mmj.2853 mmj:MSMAS_2933 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_mazei.773 mmac.1476 mmac:MSMAC_1501 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 - mvc.583 mvc:MSVAZ_0551 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_sp_.3772 mek.549 mek:MSKOL_0529 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 - mls.401 mls:MSLAZ_0321 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_sp_.9418 metm.2800 metm:MSMTP_2881 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_sp_.1657 mef.2626 mef:MSWH1_2718 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_sp_.1657 meq.2248 meq:MSWHS_2319 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_siciliae.3059 msj.615 msj:MSSAC_0516 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_siciliae.3059 msz.488 msz:MSSIH_0477 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_siciliae.3059 msw.527 msw:MSSIT_0500 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_thermophila.214 mthe.1195 mthe:MSTHC_1188 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 Methanosarcina_thermophila.214 mthr.2082 mthr:MSTHT_2096 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosarcina.3817 - mhor.3543 mhor:MSHOH_3645 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanococcoides.63 - mbu.1074 mbu:Mbur_1224 pyrK; Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanococcoides.63 - mmet.1661 mmet:MCMEM_1676 Dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanohalophilus.248 - mmh.1415 mmh:Mmah_1463 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanohalophilus.248 - mhaz.1230 mhaz:BHR79_06365 dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mev.321 mev:Metev_0219 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulfur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mzh.1407 mzh:Mzhil_1499 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mpy.2337 mpy:Mpsy_2485 dihydroorotate dehydrogenase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mhz.790 mhz:Metho_0819 2-polyprenylphenol hydroxylase-like oxidoreductase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosaeta.612 - mtp.451 mtp:Mthe_0451 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosaeta.612 - mcj.1746 mcj:MCON_2336 oxidoreductase FAD/NAD; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanosaeta.612 - mhi.1390 mhi:Mhar_1442 Oxidoreductase FAD/NAD; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mhu.1126 mhu:Mhun_1153 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mla.628 mla:Mlab_0594 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanoculleus.2185 - mem.784 mem:Memar_0795 dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanoculleus.2185 - mbg.829 mbg:BN140_0849 pyrK; dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanoculleus.2185 - mema.1106 mema:MMAB1_1114 pyrK; putative dihydroorotate dehydrogenase B (NAD(+)), electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mpi.1815 mpi:Mpet_1926 Dihydroorotate dehydrogenase, electron transfer subunit, iron-sulfur cluster binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanoregula.54 - mbn.1103 mbn:Mboo_1111 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanoregula.54 - mfo.2003 mfo:Metfor_2162 2-polyprenylphenol hydroxylase-like oxidoreductase; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 - - mpl.1595 mpl:Mpal_1743 oxidoreductase FAD/NAD(P)-binding domain protein; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanocella.2004 - mpd.1541 mpd:MCP_1552 pyrK; probable dihydroorotate dehydrogenase electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanocella.2004 - mez.985 mez:Mtc_1013 pyrK; dihydroorotate oxidase B, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit OC.168997 Archaea.3210 Euryarchaeota.3766 Methanocella.2004 - rci.372 rci:LRC391 pyrK; predicted dihydroorotate dehydrogenase, electron transfer subunit; K02823 dihydroorotate dehydrogenase electron transfer subunit