[NiFe] Group 4e-hydrogenase

This entry was last updated at: June 13, 2016, 11:11 a.m.

Properties
Group [NiFe] Group 4: Respiratory H2-evolving [NiFe] hydrogenases
Subgroup [NiFe] Group 4e: Ferredoxin-coupled, Ech-type
Function Forms respiratory complex that couples oxidation of ferredoxinred to reduction of protons to H2 in acetoclastic methanogenesis. This process appears to be coupled to sodium or proton translocation through the transmembrane modules. The complex can also act in the reverse direction during hydrogenotrophic methanogenesis.
Activity Bidirectional
Oxygen tolerance O2-sensitive
Localisation Membrane-bound
Distribution
Ecosystem distribution Anoxic soils and sediments, animal gastrointestinal tracts
Taxonomic distribution Encoded in multiple methanogenic orders and anaerobic bacteria
Genetic Organisation

e.g. Methanosarcina barkeri (WP_011305188.1):

Architecture
Structures
    None
Subunits 6
Subunit description EchA (hydrogenase large subunit)
EchC (hydrogenase small subunit)
EchF (iron-sulfur subunit)
EchB (NuoH-like transmembrane adaptor)
EchA (NuoL-like transmembrane adaptor)
EchD (NuoC-like transmembrane adaptor)
Catalytic site [NiFe]-centre
FeS clusters Proximal: 4Cys[4Fe4S]
Medial: Absent
Distal: Absent
Sequences in this class
NCBI AccessionOrganismHydrogenase ClassPhylumOrderActivity (Predicted)Oxygen Tolerance (Predicted)Subunits (Predicted)Metal Centres (Predicted)Accessory Subunits (Predicted)
WP_014323623.1Desulfovibrio desulfuricans[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_021758533.1Desulfovibrio gigas[NiFe] Group 4eDeltaproteobacteriaDesulfobacteralesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015336113.1Desulfovibrio hydrothermalis[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027182881.1Desulfovibrio inopinatus[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_022661459.1Desulfovibrio longus[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012749853.1Desulfovibrio magneticus[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_018125731.1Desulfovibrio oxyclinae[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015414775.1Desulfovibrio piezophilus[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027190463.1Desulfovibrio putealis[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015853104.1Desulfovibrio salexigens[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_007524167.1Desulfovibrio sp. A2[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_020879492.1Desulfovibrio sp. X2[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_010937737.1Desulfovibrio vulgaris[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027723401.1Desulfovibrio zosterae[NiFe] Group 4eDeltaproteobacteriaDesulfovibrionalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_013638341.1Desulfurobacterium thermolithotrophum[NiFe] Group 4eAquificaeDesulfurobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027716617.1Desulfuromonas sp. TF[NiFe] Group 4eDeltaproteobacteriaDesulfuromonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_007070913.1Dialister invisus[NiFe] Group 4eFirmicutesSelenomonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_022106764.1Dialister sp. CAG:486[NiFe] Group 4eFirmicutesSelenomonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_008860581.1Dialister succinatiphilus[NiFe] Group 4eFirmicutesSelenomonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015760641.1Eggerthella lenta[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_021900040.1Eggerthella sp. CAG:1427[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_022184688.1Eggerthella sp. CAG:209[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_022363091.1Eggerthella sp. CAG:298[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_013979777.1Eggerthella sp. YY7918[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_016308760.1Enterorhabdus caecimuris[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_028026344.1Enterorhabdus mucosicola[NiFe] Group 4eActinobacteriaCoriobacterialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027871860.1Eubacterium cellulosolvens[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015536221.1Eubacterium cylindroides[NiFe] Group 4eFirmicutesErysipelotrichalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_026835345.1Eubacterium xylanophilum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015720170.1Geobacter sp. M18[NiFe] Group 4eDeltaproteobacteriaDesulfuromonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011937735.1Geobacter uraniireducens[NiFe] Group 4eDeltaproteobacteriaDesulfuromonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012199760.1Lachnoclostridium phytofermentans[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027431522.1Lachnospira multipara[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_024789181.1Lebetimonas sp. JH292[NiFe] Group 4eEpsilonproteobacteriaNautilialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012035507.1Methanocella arvoryzae[NiFe] Group 4eEuryarchaeotaMethanocellalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_014405402.1Methanocella conradii[NiFe] Group 4eEuryarchaeotaMethanocellalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012899275.1Methanocella paludicola[NiFe] Group 4eEuryarchaeotaMethanocellalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012899230.1Methanocella paludicola[NiFe] Group 4eEuryarchaeotaMethanocellalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_014867437.1Methanoculleus bourgensis[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011843203.1Methanoculleus marisnigri[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_004039320.1Methanofollis liminatans[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_020449518.1Methanomassiliicoccus intestinalis[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_019176382.1Methanomassiliicoccus luminyensis[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_004077817.1Methanoplanus limicola[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_013328417.1Methanoplanus petrolearius[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011991040.1Methanoregula boonei[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015284201.1Methanoregula formicica[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011305188.1Methanosarcina barkeri[NiFe] Group 4eEuryarchaeotaMethanosarcinalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011034248.1Methanosarcina mazei[NiFe] Group 4eEuryarchaeotaMethanosarcinalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012619310.1Methanosphaerula palustris[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein

Literature

Genetics:

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Biochemistry: