[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_018160400.1Smaragdicoccus niigatensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012237207.1Sorangium cellulosum[NiFe] Group 3bDeltaproteobacteriaMyxococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013018709.1Stackebrandtia nassauensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_010360429.1Streptomyces acidiscabies[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020123404.1Streptomyces canus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015662841.1Streptomyces davawensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_004936990.1Streptomyces griseoflavus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014677317.1Streptomyces hygroscopicus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_004946981.1Streptomyces mobaraensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020874487.1Streptomyces rapamycinicus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_003980535.1Streptomyces rimosus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_023544405.1Streptomyces roseochromogenes[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012998941.1Streptomyces scabiei[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018384886.1Streptomyces vitaminophilus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012891383.1Streptosporangium roseum[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012674555.1Sulfurihydrogenibium azorense[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_028949840.1Sulfurihydrogenibium subterraneum[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011416040.1Syntrophus aciditrophicus[NiFe] Group 3bDeltaproteobacteriaSyntrophobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015051716.1Thermacetogenium phaeum[NiFe] Group 3bFirmicutesThermoanaerobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_028989466.1Thermithiobacillus tepidarius[NiFe] Group 3bGammaproteobacteriaAcidithiobacillalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013132103.1Thermobispora bispora[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013466811.1Thermococcus barophilus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013466346.1Thermococcus barophilus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011251019.1Thermococcus kodakarensis[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020953630.1Thermococcus litoralis[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_004069412.1Thermococcus litoralis[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012571493.1Thermococcus onnurineus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012571009.1Thermococcus onnurineus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[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_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_014122569.1Thermococcus sp. AM4[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[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_010479591.1Thermococcus zilligii[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_010479608.1Thermococcus zilligii[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_028842337.1Thermodesulfovibrio islandicus[NiFe] Group 3bNitrospiraeNitrospiralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_028844226.1Thermodesulfovibrio thiophilus[NiFe] Group 3bNitrospiraeNitrospiralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012544964.1 Thermodesulfovibrio yellowstonii[NiFe] Group 3bNitrospiraeNitrospiralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014737726.1Thermogladius cellulolyticus[NiFe] Group 3bCrenarchaeotaDesulfurococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013537242.1Thermovibrio ammonificans[NiFe] Group 3bAquificaeDesulfurobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_015258948.1Thioalkalivibrio nitratireducens[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012637708.1Thioalkalivibrio sulfidiphilus[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011311775.1Thiobacillus denitrificans[NiFe] Group 3bBetaproteobacteriaHydrogenophilalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018508430.1Thiobacillus thioparus[NiFe] Group 3bBetaproteobacteriaHydrogenophilalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_006786889.1Thiorhodospira sibirica[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_028490240.1Thiothrix lacustris[NiFe] Group 3bGammaproteobacteriaThiotrichalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_002708355.1Thiothrix nivea[NiFe] Group 3bGammaproteobacteriaThiotrichalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_018608874.1Uliginosibacterium gangwonense[NiFe] Group 3bBetaproteobacteriaRhodocyclalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein

Literature

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