[NiFe] Group 3b-hydrogenase

This entry was last updated at: Feb. 9, 2018, 7:34 a.m.

Properties
Group [NiFe] Group 3: Cofactor-coupled bidirectional [NiFe] hydrogenases
Subgroup [NiFe] Group 3b: NADP-coupled
Function Directly couples oxidation of NADPH to fermentative evolution of H2. Reverse reaction may also occur. Some complexes controversially proposed to harbour sulfhydrogenase activity.
Activity Bidirectional
Oxygen tolerance O2-tolerant
Localisation Cytosolic
Distribution
Ecosystem distribution Diverse soil and aquatic environments
Taxonomic distribution Encoded in multiple diverse bacterial and archaeal phyla
Genetic Organisation

e.g. Pyrococcus furiosus (WP_011012029.1):

Architecture
Structures
  • 5ODC (Methanothermococcus thermolithotrophicus, 2.3 Å resolution)
  • 5ODH (Methanothermococcus thermolithotrophicus, 2.2 Å resolution, bound with heterodisulfide)
  • 5ODI (Methanothermococcus thermolithotrophicus, 2.4 Å resolution, bound with coenzyme M)
Subunits 4
Subunit description HyhL (hydrogenase large subunit)
HyhS (hydrogenase small subunit)
HyhG (diaphorase catalytic subunit)
HyhB (diaphorase electron transfer subunit)
Catalytic site [NiFe]-centre
FeS clusters Proximal: 4Cys[4Fe4S]
Medial: 4Cys[4Fe4S]
Distal: 4Cys[4Fe4S]
Important Notes
Despite the ubiquitous nature of this hydrogenase, the enzyme has only been purified from Pyrococcus furiosus. It remains unclear whether bacterial enzymes are also NADP+-specific.
Sequences in this class
NCBI AccessionOrganismHydrogenase ClassPhylumOrderActivity (Predicted)Oxygen Tolerance (Predicted)Subunits (Predicted)Metal Centres (Predicted)Accessory Subunits (Predicted)
WP_013749130.1Pyrococcus sp. NA2[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013904776.1Pyrococcus yayanosii[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013905579.1Pyrococcus yayanosii[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013923702.1Francisella sp. TX077308[NiFe] Group 3bGammaproteobacteriaThiotrichalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013979629.1Eggerthella sp. YY7918[NiFe] Group 3bActinobacteriaCoriobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014012081.1Thermococcus sp. 4557[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014012582.1Thermococcus sp. 4557[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014029204.1Acidithiobacillus ferrivorans[NiFe] Group 3bGammaproteobacteriaAcidithiobacillalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014068049.1Rhodothermus marinus[NiFe] Group 3bBacteroidetesUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014122569.1Thermococcus sp. AM4[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014292817.1Oceanimonas sp. GK1[NiFe] Group 3bGammaproteobacteriaAeromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014433201.1Caldilinea aerophila[NiFe] Group 3bChloroflexiCaldilinealesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014558156.1Fervidicoccus fontis[NiFe] Group 3bCrenarchaeotaFervidicoccalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014677317.1Streptomyces hygroscopicus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014734005.1Pyrococcus sp. ST04[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014734228.1Pyrococcus sp. ST04[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014737726.1Thermogladius cellulolyticus[NiFe] Group 3bCrenarchaeotaDesulfurococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014788000.1Thermococcus sp. CL1[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014788486.1Thermococcus sp. CL1[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014814971.1Mycobacterium chubuense[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014890330.1Methylocystis sp. SC2[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015051716.1Thermacetogenium phaeum[NiFe] Group 3bFirmicutesThermoanaerobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015258948.1Thioalkalivibrio nitratireducens[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015283468.1Aciduliprofundum sp. MAR08-339[NiFe] Group 3bEuryarchaeotaUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015403594.1Desulfocapsa sulfexigens[NiFe] Group 3bDeltaproteobacteriaDesulfobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015662841.1Streptomyces davawensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015720565.1Geobacter sp. M18[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015760489.1Eggerthella lenta[NiFe] Group 3bActinobacteriaCoriobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015790329.1Halorhabdus utahensis[NiFe] Group 3bEuryarchaeotaHalobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015837532.1Geobacter sp. M21[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015848571.1Thermococcus sibiricus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015849791.1Thermococcus sibiricus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_016308610.1Enterorhabdus caecimuris[NiFe] Group 3bActinobacteriaCoriobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_016920195.1Methylocystis parvus[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_017290644.1Leptolyngbya boryana[NiFe] Group 3bCyanobacteriaOscillatorialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_017774733.1Burkholderia kururiensis[NiFe] Group 3bBetaproteobacteriaBurkholderialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_017873497.1Caldatribacterium saccharofermentans[NiFe] Group 3bAtribacteriaUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_017890430.1Caldatribacterium californiense[NiFe] Group 3bAtribacteriaUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018160400.1Smaragdicoccus niigatensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018265836.1Methylosinus sp. LW4[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018290138.1Verrucomicrobium sp. 3C[NiFe] Group 3bVerrucomicrobiaVerrucomicrobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018300187.1Fangia hongkongensis[NiFe] Group 3bGammaproteobacteriaThiotrichalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018384886.1Streptomyces vitaminophilus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018407885.1Methylocystis rosea[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018508430.1Thiobacillus thioparus[NiFe] Group 3bBetaproteobacteriaHydrogenophilalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018608874.1Uliginosibacterium gangwonense[NiFe] Group 3bBetaproteobacteriaRhodocyclalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_019350089.1Fluoribacter dumoffii[NiFe] Group 3bGammaproteobacteriaLegionellalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020123404.1Streptomyces canus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020412786.1Microbulbifer variabilis[NiFe] Group 3bGammaproteobacteriaAlteromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020524726.1Catelliglobosispora koreensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein

Literature

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