[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_020003846.1Brachyspira innocens[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 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_020611343.1Spirochaeta bajacaliforniensis[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_020614051.1Spirochaeta bajacaliforniensis[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_028330509.1Brachyspira alvinipulli[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028972813.1Spirochaeta cellobiosiphila[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_029410172.1Treponema pedis[FeFe] Group A3SpirochaetesSpirochaetalesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_012546840.1Thermodesulfovibrio yellowstonii[FeFe] Group A3NitrospiraeNitrospiralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028842275.1Thermodesulfovibrio islandicus[FeFe] Group A3NitrospiraeNitrospiralesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_014559401.1Ignavibacterium album[FeFe] Group A3IgnavibacteriaeIgnavibacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 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_007039337.1Thiorhodococcus drewsii[FeFe] Group A3GammaproteobacteriaChromatialesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
WP_015878590.1Tolumonas auensis[FeFe] Group A3GammaproteobacteriaAeromonadalesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
WP_024870534.1Tolumonas sp. BRL6-1[FeFe] Group A3GammaproteobacteriaAeromonadalesBifurcatingLabile2[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase
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_010680344.1Fusobacterium gonidiaformans[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012860094.1Sebaldella termitidis[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_012863017.1Sebaldella termitidis[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013387085.1Ilyobacter polytrophus[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013387146.1Ilyobacter polytrophus[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_013387669.1Ilyobacter polytrophus[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_021767225.1Leptotrichia sp. 215[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_023051856.1Cetobacterium somerae[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_023052447.1Cetobacterium somerae[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028856758.1Psychrilyobacter atlanticus[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_028856899.1Psychrilyobacter atlanticus[FeFe] Group A3FusobacteriaFusobacterialesBifurcatingLabile3[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_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_003138680.1Lactococcus raffinolactis[FeFe] Group A3FirmicutesLactobacillalesBifurcatingLabile3[FeFe]-centre, 2 x [4Fe4S] clustersNADH 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_003534157.1Ruminiclostridium leptum[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 2 x [4Fe4S] clustersNADH dehydrogenase, thioredoxin, 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_003870979.1Thermoanaerobacter ethanolicus[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_004401666.1Thermoanaerobacter thermohydrosulfuricus[FeFe] Group A3FirmicutesThermoanaerobacteralesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_004608286.1Lachnoclostridium scindens[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[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_004614049.1Tyzzerella nexilis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_004629507.1Ruminiclostridium termitidis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_004630049.1Ruminiclostridium termitidis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile4[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin, thioredoxin
WP_004816070.1Anaerococcus hydrogenalis[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin
WP_004835820.1Anaerococcus tetradius[FeFe] Group A3FirmicutesClostridialesBifurcatingLabile3[FeFe]-centre, 3 x [4Fe4S] clusters, 1 x [2Fe2S] clusterNADH dehydrogenase, thioredoxin

Literature

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