[FeFe] Group A3-hydrogenase

This entry was last updated at: Feb. 9, 2018, 6:46 a.m.

Properties
Group [FeFe]-hydrogenases
Subgroup [FeFe] Group A3: Bifurcating
Function Bifurcates electrons from H2 to NAD and ferredoxin. Reverse reaction can also occur resulting in reoxidation of redox carriers concomitant with fermentative H2 evolution.
Activity Electron-bifurcation
Oxygen tolerance O2-labile
Localisation Cytosolic
Distribution
Ecosystem distribution Gastrointestinal tracts, anoxic soils and sediments
Taxonomic distribution Widespread in anaerobic bacteria, including Firmicutes, Bacteroidetes, Deltaproteobacteria, and Spirochaetes
Genetic Organisation

Organisation 1: Thermotoga maritima (WP_004081677.1):


Organisation 2: Desulfovibrio fructosovorans (WP_005990603.1):

Architecture
Structures
    None
Subunits 3 or 4
Subunit description HydA (catalytic subunit)
HydB (diaphorase subunit)
HydC (thioredoxin)
In organisation 2, an additional thioredoxin (HydD) is present
Catalytic site [FeFe]-centre
FeS clusters Organisation 1: 3 [4Fe4S] clusters, 2 [2Fe2S] clusters
Organisation 2: 3 [4Fe4S] clusters, 1 [2Fe2S] cluster
Sequences in this class
NCBI AccessionOrganismHydrogenase ClassPhylumOrderActivity (Predicted)Oxygen Tolerance (Predicted)Subunits (Predicted)Metal Centres (Predicted)Accessory Subunits (Predicted)
WP_005950651.1Fusobacterium varium[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005952705.1Fusobacterium necrophorum[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005980462.1Fusobacterium ulcerans[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005990603.1Desulfovibrio fructosivorans[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_005991663.1Desulfovibrio fructosivorans[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006059213.1Holdemania filiformis[FeFe] Group A3FirmicutesErysipelotrichalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006191642.1Selenomonas sputigena[FeFe] Group A3FirmicutesSelenomonadalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006299828.1Aminomonas paucivorans[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006352890.1Ruminiclostridium methylpentosum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin, thioredoxin
WP_006442445.1Lachnoclostridium hylemonae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006444067.1Lachnoclostridium hylemonae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006521126.1Desulfotomaculum gibsoniae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_006522262.1Desulfotomaculum gibsoniae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006524080.1Desulfotomaculum gibsoniae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006567084.1Anaerostipes caccae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006570153.1Thermoanaerobacter siderophilus[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006573275.1Pseudoflavonifractor capillosus[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006584326.1Thermanaerovibrio velox[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006778965.1Lachnoclostridium hathewayi[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_006861102.1Marvinbryantia formatexigens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006876820.1Anaerotruncus colihominis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_006928134.1Caldithrix abyssi[FeFe] Group A3CaldithrixCaldithrixalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007039337.1Thiorhodococcus drewsii[FeFe] Group A3GammaproteobacteriaChromatialesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
WP_007049858.1Anaerofustis stercorihominis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007050317.1Anaerofustis stercorihominis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_007060145.1Clostridium carboxidivorans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007062593.1Clostridium carboxidivorans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007216264.1Bacteroides cellulosilyticus[FeFe] Group A3BacteroidetesBacteroidalesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
WP_007286821.1Intestinibacter bartlettii[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007288799.1Thermosinus carboxydivorans[FeFe] Group A3FirmicutesSelenomonadalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_007656765.1Parabacteroides goldsteinii[FeFe] Group A3BacteroidetesBacteroidalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007715797.1Lachnoclostridium asparagiforme[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007779133.1Desulfosporosinus youngiae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007783548.1Desulfosporosinus youngiae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_007862869.1Lachnoclostridium citroniae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_007862872.1Lachnoclostridium citroniae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_007952324.1Pelosinus fermentans[FeFe] Group A3FirmicutesSelenomonadalesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_007953234.1Pelosinus fermentans[FeFe] Group A3FirmicutesSelenomonadalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008021616.1Bacteroides xylanisolvens[FeFe] Group A3BacteroidetesBacteroidalesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
WP_008157755.1Parabacteroides johnsonii[FeFe] Group A3BacteroidetesBacteroidalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008371804.1Coprococcus comes[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008410059.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008410064.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008410175.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_008410459.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008411510.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_008521264.1Jonquetella anthropi[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008538939.1Megamonas funiformis[FeFe] Group A3FirmicutesSelenomonadalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008708834.1Synergistes sp. 3_1_syn1[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_008711190.1Synergistes sp. 3_1_syn1[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin

Literature

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