[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_004081677.1Thermotoga maritima[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005038259.1Holophaga foetida[FeFe] Group A3AcidobacteriaHolophagalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_005991663.1Desulfovibrio fructosivorans[FeFe] Group A3DeltaproteobacteriaDesulfovibrionalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_008410059.1Desulfotomaculum hydrothermale[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_011993415.1Fervidobacterium nodosum[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012002999.1Thermotoga lettingae[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012056718.1Thermosipho melanesiensis[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012311063.1Thermotoga sp. RQ2[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012548684.1Dictyoglomus thermophilum[FeFe] Group A3DictyoglomiDictyoglomalesBifurcatingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012579795.1Thermosipho africanus[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[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_012635141.1Halothermothrix orenii[FeFe] Group A3FirmicutesHalanaerobialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013252975.1Spirochaeta smaragdinae[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013779523.1Tepidanaerobacter acetatoxydans[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013810075.1Desulfotomaculum carboxydivorans[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013824004.1Desulfotomaculum kuznetsovii[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_013931427.1Thermotoga thermarum[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_014857142.1Melioribacter roseus[FeFe] Group A3IgnavibacteriaeIgnavibacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_015724294.1Desulfobulbus propionicus[FeFe] Group A3DeltaproteobacteriaDesulfobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_015919559.1Thermotoga neapolitana[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_020611046.1Spirochaeta bajacaliforniensis[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_027718652.1Desulfovirgula thermocuniculi[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028318925.1Desulfobulbus elongatus[FeFe] Group A3DeltaproteobacteriaDesulfobacteralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028843229.1Thermotoga elfii[FeFe] Group A3ThermotogaeThermotogalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 2 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_016268012.1Bacteroides thetaiotaomicron[FeFe] Group A3BacteroidetesBacteroidalesEvolvingLabile1[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNone
AIO18212.1Mollicutes bacterium HR1[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
AIO18671.1Mollicutes bacterium HR1[FeFe] Group A3TenericutesMollicutesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
AIO19694.1Mollicutes bacterium HR1[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
AIO19709.1Mollicutes bacterium HR1[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
KFZ25760.1Mollicutes bacterium HR2[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
KFZ26040.1Mollicutes bacterium HR2[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
KFZ27631.1Mollicutes bacterium HR2[FeFe] Group A3TenericutesMollicutesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_002568591.1Lachnoclostridium bolteae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_002570913.1Lachnoclostridium bolteae[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_002580338.1Clostridium butyricum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_002730048.1Phaeospirillum molischianum[FeFe] Group A3AlphaproteobacteriaRhodospirillalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_002853139.1Ruminococcus albus[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_003020884.1Blautia hansenii[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_003507872.1Lachnoclostridium symbiosum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_003512584.1Ruminiclostridium thermocellum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_003519061.1Ruminiclostridium thermocellum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH 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

Literature

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