>TIGR01988 Ubi-OHases Ubiquinone biosynthesis hydroxylase, UbiH/UbiF/VisC/COQ6 family; InterPro: IPR010971 This entry represents a family of FAD-dependent hydroxylases (monooxygenases) which are all believed to act in the aerobic ubiquinone biosynthesis pathway . A separate set of hydroxylases, as yet undiscovered, are believed to be active under anaerobic conditions . In Escherichia coli, three enzyme activities have been described: UbiB (which acts first at position 6, see IPR010232 from INTERPRO), UbiH (which acts at position 4, ) and UbiF (which acts at position 5, ). UbiH and UbiF are similar to one another and form the basis of this subfamily. Interestingly, E. coli contains another hydroxylase gene, called visC, that is highly similar to UbiF, adjacent to UbiH and, when mutated, results in a phenotype similar to that of UbiH (which has also been named visB) . Several other species appear to have three homologs in this family, although they assort themselves differently on phylogenetic trees (e.g. Xylella and Mesorhizobium) making it difficult to ascribe a specific activity to each one. Eukaryotes appear to have only a single homologue in this subfamily (COQ6, ) which complements UbiH, but also possess a non-orthologous gene, COQ7 which complements UbiF.; GO: 0016709 oxidoreductase activity acting on paired donors with incorporation or reduction of molecular oxygen NADH or NADPH as one donor and incorporation of one atom of oxygen, 0050660 FAD binding, 0006744 ubiquinone biosynthetic process.

Probab=100.00 E-value=0 Score=388.37 Aligned_cols=357 Identities=25% Similarity=0.348 Sum_probs=288.8 Q ss_pred CEECCHHHHHHHHHHHHHCC-----CEEEEEECCCCCC----C-----CCCEEEECHHHHHHHHHCCCHHHHHH-CCCCC Q ss_conf 38775389999999999779-----8599995687655----5-----77136678889999998899478986-26884 Q gi|254780168|r 1 MIIGAGISGLTLAASLGHRG-----IQSCVLEKKDQLS----D-----SGFGIQISPNASRILKRIGILDQLED-IWIEP 65 (380) Q Consensus 1 iIvGaG~aGl~~A~~L~~~G-----~~v~i~Er~~~~~----~-----~g~gi~l~p~~~~~L~~lGi~~~~~~-~~~~~ 65 (380) T Consensus 3 ~IvGgG~VG~~lA~aL~~~~~~~~~L~~~l~e~~~~~~~~~~~~~~~~D~R~~Al~~~S~~~L~~lG~W~~~~~~~~~p~ 82 (445) T TIGR01988 3 VIVGGGMVGLALALALASSGSRLKGLKVALIEAQPAEAPSFFAATPGFDNRVSALSAASIRLLEKLGVWDKIEPDRAQPI 82 (445) T ss_pred EEECCCHHHHHHHHHHHCCCCCCCCCEEEEEECCCCCCCCCCCCCCCCCCCEEEHHHHHHHHHHHCCCCHHHHHHHCCCC T ss_conf 88847388999999984186312473179960521144221125876552201010799999986796445201212632 Q ss_pred CCEEEEECCCCC-----CCCCCCCCCCC--CCCCCCEEEEEECCHHHHHHHHHHHHCCC--EEEEEEECCC----C---- Q ss_conf 306999788544-----33345543234--44478247862000134788997320687--2564210123----4---- Q gi|254780168|r 66 EDFVFRSGSTLK-----ELSRFSCKNYS--RNNWGGIYGVVKRHTLQKILLNHIQTQPL--ARLHLSTHIT----H---- 128 (380) Q Consensus 66 ~~~~~~~~~~~~-----~~~~~~~~~~~--~~~~~~~~~~i~r~~l~~~L~~~~~~~~~--~~~~~~~~v~----~---- 128 (380) T Consensus 83 ~~~~V~D~~~~g~~~~P~~~~F~~~~~~~~~~~LG---~~ven~~~~~aL~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 159 (445) T TIGR01988 83 RDIHVSDGGSFGRAPHPAALHFDADEVGGPAEALG---YVVENRVLQQALWEALQELPNEKVTLLCPARVEELPRHSSKN 159 (445) T ss_pred CEEEEEECCCCCCCCCCEEEEECHHHCCCCCCCCC---EEECHHHHHHHHHHHHHHCCCCEEEEECCCEEEEEECCCCCC T ss_conf 04888726788888886368744344178801123---671188999999999996689647751672147740367756 Q ss_pred -CCC--CCCCCCCC---EEEEEEEEECCCCCCCHHHCCCCCCCC--CCCEEEEEECCCCCCCCCCCCCCEEEEECC-CCE Q ss_conf -432--11234531---035689974367663121128533443--110157860365446554566760899765-405 Q gi|254780168|r 129 -PDC--TQISKINN---QKPDLLVGADGLNSNIRHYIDTQPITF--SGDVVLRCLIPQNNAPEFIDFQSVNIFFGP-DSH 199 (380) Q Consensus 129 -~~~--~~~~~~~~---~~adlvIgADG~~S~vR~~l~~~~~~~--~~~~~~~~~i~~~~~~~~~~~~~~~~~~~~-~~~ 199 (380) T Consensus 160 ~~~~v~~~L~~G~~~~~l~a~LlvgADG~~S~vR~~~gI~~~~~R~Y~Q~a~Va~v~~~~~----h~~~A~erF~~~~GP 235 (445) T TIGR01988 160 DSDEVELTLSDGRQKLLLRARLLVGADGANSKVRQLAGIPTTGWRDYGQSAVVANVKHERP----HQGTAWERFLPDTGP 235 (445) T ss_pred CCCCEEEEECCCCEEEEEEECEEEEECCCCHHHHHHHCCCCCEEECCCCEEEEEEEEECCC----CCCEEEEEEECCCCC T ss_conf 8860799970894767898532787358652579971888430116455389999971478----896479998279985 Q ss_pred EEEEEECC--CCEEEEEEEECCCCCCCCCCCCCCCCCHHHHHHHHHHCCCCCCE-------------------------- Q ss_conf 78884048--97379999845774211123455322238989863212802220-------------------------- Q gi|254780168|r 200 LVTYPLRE--DNTINMVFVSSKHTLKDISFLKRSEIHKEWFVKHLTNWHQEIIQ-------------------------- 251 (380) Q Consensus 200 ~~~~p~~~--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-------------------------- 251 (380) T Consensus 236 ~AlLPL~~~dd~~~slVW~~~~~~A~~L~~l~~-----~~F~~~L~~~F~~~lG~~~~~~~~~~~l~~~~~~~~~~~~pp 310 (445) T TIGR01988 236 LALLPLPDNDDNRSSLVWTLPPEEAERLLALDD-----EEFLAELNRAFGSRLGDLPYLDQTDFALNELFFRSSEEQYPP 310 (445) T ss_pred EEECCCCCCCCCEEEEEEECCHHHHHHHHCCCH-----HHHHHHHHHHHHHHCCCCCHHHHHHHHHHHHHHHHHCCEECC T ss_conf 787358888896038997389799999867899-----899999999853315796556789999999873202440068 Q ss_pred --EEECCCCCCCCCCCCCCCCCCCCCCCEEECHHHCCCCCCCHHHHHCCCHHHHHHHHHHHCC-----CC--HHHHHHHH Q ss_conf --1100233210123346542101468711211111244830334201303679999998524-----89--89999999 Q gi|254780168|r 252 --LILQINDTHLYPLFECECKHWHNKKNAVLIGDAAHTLLPFAAQGANMAIEDAYALSYLLGK-----KT--IPAAISAY 322 (380) Q Consensus 252 --~i~~~~~~~~~~l~~~~~~~~~~~~rv~LiGDAAH~~~P~~GqG~n~al~Da~~La~~L~~-----~~--~~~~l~~Y 322 (380) T Consensus 311 ~~~~~~~~~R~~fPL~~~~-A~~yv~~R~aLiGDAAHt~HPlAGQG~NLG~rDv~~La~~l~~a~~~g~DiG~~~~L~~Y 389 (445) T TIGR01988 311 LGAITLVGERAAFPLSLRH-AKRYVAPRLALIGDAAHTVHPLAGQGLNLGLRDVAALAEVLVEARRRGEDIGSLAVLQRY 389 (445) T ss_pred CEEEEECCCCCCCCCHHHH-HHHHHCCCEEEEECCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHCCCCCCCHHHHHHH T ss_conf 2378876876304403343-587625985898054135787100100200789999999999988456685777789999 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHCCCCH-HHHHHHHHHHHHCCCHHHHHC Q ss_conf 998679999999999998898367898-999999999851533377720 Q gi|254780168|r 323 QKVRAVRVKRIRYRTKLNQLLFHMHRP-ASLFRNAGLRLGIHKPLHKSL 370 (380) Q Consensus 323 ~~~R~~~~~~i~~~s~~~~~~~~~~~~-~~~~r~~~l~~~~~~~~~~~l 370 (380) T Consensus 390 ~r~R~~dn~~~~~~~D~L~~lF~n~~~pl~~lR~~GL~~~~~~pplK~~ 438 (445) T TIGR01988 390 ERRRRFDNAAMLGATDGLNRLFSNDFPPLRLLRNLGLRLLNLLPPLKNF 438 (445) T ss_pred HHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHCCCHHHHH T ss_conf 9974998999999999999874068778999998999987404058999

HHsearch alignment for GI: 254780168 and conserved domain: TIGR01988