[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_013824004.1Desulfotomaculum kuznetsovii[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_003540305.1Desulfotomaculum nigrificans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_003541670.1Desulfotomaculum nigrificans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_003543871.1Desulfotomaculum nigrificans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_011876846.1Desulfotomaculum reducens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_011877994.1Desulfotomaculum reducens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_011877997.1Desulfotomaculum reducens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_011879575.1Desulfotomaculum reducens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013840577.1Desulfotomaculum ruminis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013842391.1Desulfotomaculum ruminis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013842395.1Desulfotomaculum ruminis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013842583.1Desulfotomaculum ruminis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_013843380.1Desulfotomaculum ruminis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_027356557.1Desulfotomaculum thermocisternum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_027356646.1Desulfotomaculum thermocisternum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_027357333.1Desulfotomaculum thermocisternum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_029460330.1Desulfovibrio alcoholivorans[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_029460554.1Desulfovibrio alcoholivorans[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, 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_024823936.1Desulfovibrio magneticus[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_027717485.1Desulfovirgula thermocuniculi[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_027718652.1Desulfovirgula thermocuniculi[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_018084282.1Desulfurispora thermophila[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_018085930.1Desulfurispora thermophila[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_018086225.1Desulfurispora thermophila[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_022847517.1Desulfurobacterium sp. TC5-1[FeFe] Group A3AquificaeDesulfurobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013637757.1Desulfurobacterium thermolithotrophum[FeFe] Group A3AquificaeDesulfurobacterialesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin
WP_012548684.1Dictyoglomus thermophilum[FeFe] Group A3DictyoglomiDictyoglomalesBifurcatingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012582935.1Dictyoglomus turgidum[FeFe] Group A3DictyoglomiDictyoglomalesBifurcatingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005333143.1Dorea formicigenerans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028086317.1Dorea longicatena[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012414703.1Elusimicrobium minutum[FeFe] Group A3ElusimicrobiaElusimicrobialesBifurcatingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_010753129.1Enterococcus asini[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_016182069.1Enterococcus avium[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_010780462.1Enterococcus gilvus[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_010740236.1Enterococcus malodoratus[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_010746116.1Enterococcus raffinosus[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_027088814.1Erysipelatoclostridium saccharogumia[FeFe] Group A3FirmicutesErysipelotrichalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_004610503.1Erysipelatoclostridium spiroforme[FeFe] Group A3FirmicutesErysipelotrichalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_013486450.1Ethanoligenens harbinense[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013379183.1Eubacterium limosum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_021739954.1Eubacterium ramulus[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_011993415.1Fervidobacterium nodosum[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_014451418.1Fervidobacterium pennivorans[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_015556986.1Fretibacterium fastidiosum[FeFe] Group A3SynergistetesSynergistalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_010680344.1Fusobacterium gonidiaformans[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_005950651.1Fusobacterium varium[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin

Literature

Genetics:

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