[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_011937735.1Geobacter uraniireducens[NiFe] Group 4eDeltaproteobacteriaDesulfuromonadalesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_013460916.1Sulfuricurvum kujiense[NiFe] Group 4eEpsilonproteobacteriaCampylobacteralesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015654365.1Sulfuricurvum sp. RIFRC-1[NiFe] Group 4eEpsilonproteobacteriaCampylobacteralesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_008340210.1Sulfurimonas gotlandica[NiFe] Group 4eEpsilonproteobacteriaCampylobacteralesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_007474009.1Caminibacter mediatlanticus[NiFe] Group 4eEpsilonproteobacteriaNautilialesEvolvingSensitive6[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_012663581.1Nautilia profundicola[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_012619310.1Methanosphaerula palustris[NiFe] Group 4eEuryarchaeotaMethanomicrobialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_011448732.1Methanospirillum hungatei[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_010251151.1Acetivibrio cellulolyticus[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015738579.1Ammonifex degensii[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027399701.1Anaerovorax odorimutans[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027203889.1Butyrivibrio fibrisolvens[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_026651247.1Butyrivibrio proteoclasticus[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_026892028.1Clostridium aerotolerans[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_005213155.1Clostridium celatum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_027631079.1Clostridium cellobioparum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_015926708.1Clostridium cellulolyticum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_014254276.1Clostridium clariflavum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_024832561.1Clostridium josui[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_024346172.1Clostridium methoxybenzovorans[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_004618281.1Clostridium papyrosolvens[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_004628623.1Clostridium termitidis[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_019226287.1Dehalobacter sp. E1[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_020490799.1Dehalobacter sp. FTH1[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_012302199.1Desulforudis audaxviator[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[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_026835345.1Eubacterium xylanophilum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[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_028241974.1Pseudobutyrivibrio ruminis[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_028246016.1Pseudobutyrivibrio ruminis[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_028234750.1Pseudobutyrivibrio sp. MD2005[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_003514863.1Ruminiclostridium thermocellum[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein
WP_007047619.1Subdoligranulum variabile[NiFe] Group 4eFirmicutesClostridialesEvolvingSensitive6[NiFe]-centre, 1 x [4Fe4S] clustersNuoL, NuoH, NuoC, [FeS] protein

Literature

Genetics:

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Biochemistry: