[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_010933552.1Chlorobaculum tepidum[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011012029.1Pyrococcus furiosus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011012478.1Pyrococcus furiosus[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_011311775.1Thiobacillus denitrificans[NiFe] Group 3bBetaproteobacteriaHydrogenophilalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011361294.1Chlorobium chlorochromatii[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011416040.1Syntrophus aciditrophicus[NiFe] Group 3bDeltaproteobacteriaSyntrophobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011438850.1Frankia sp. CcI3[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011593368.1Rhodococcus jostii[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011712560.1Magnetococcus marinus[NiFe] Group 3bAlphaproteobacteriaMagnetococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011719855.1Acidothermus cellulolyticus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011745973.1Chlorobium phaeobacteroides[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_011938049.1Geobacter uraniireducens[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012136580.1Marinobacter lipolyticus[NiFe] Group 3bGammaproteobacteriaAlteromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012237207.1Sorangium cellulosum[NiFe] Group 3bDeltaproteobacteriaMyxococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012280244.1Francisella philomiragia[NiFe] Group 3bGammaproteobacteriaThiotrichalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012308976.1Korarchaeum cryptofilum[NiFe] Group 3bKorarchaeotaUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012383518.1Beijerinckia indica[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012464725.1Methylacidiphilum infernorum[NiFe] Group 3bVerrucomicrobiaMethylacidiphilalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012466994.1Chlorobium limicola[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012498899.1Chloroherpeton thalassium[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012501574.1Chlorobaculum parvum[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012506474.1Prosthecochloris aestuarii[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012509156.1Pelodictyon phaeoclathratiforme[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012530401.1Geobacter bemidjiensis[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012536449.1Acidithiobacillus ferrooxidans[NiFe] Group 3bGammaproteobacteriaAcidithiobacillalesBidirectionalTolerant4[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_012571009.1Thermococcus onnurineus[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_012606689.1Acidithiobacillus ferrooxidans[NiFe] Group 3bGammaproteobacteriaAcidithiobacillalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012628086.1Cyanothece sp. PCC 7425[NiFe] Group 3bCyanobacteriaChroococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012637708.1Thioalkalivibrio sulfidiphilus[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012646977.1Geobacter daltonii[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012674555.1Sulfurihydrogenibium azorense[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012676609.1Persephonella marina[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012699124.1Azotobacter vinelandii[NiFe] Group 3bGammaproteobacteriaPseudomonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012891383.1Streptosporangium roseum[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012963143.1Hydrogenobacter thermophilus[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012970030.1Allochromatium vinosum[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012998941.1Streptomyces scabiei[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013018709.1Stackebrandtia nassauensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013032567.1Nitrosococcus halophilus[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013132103.1Thermobispora bispora[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013218375.1Dehalogenimonas lykanthroporepellens[NiFe] Group 3bChloroflexiDehalogenimonasBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013466346.1Thermococcus barophilus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013466811.1Thermococcus barophilus[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013537242.1Thermovibrio ammonificans[NiFe] Group 3bAquificaeDesulfurobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013638346.1Desulfurobacterium thermolithotrophum[NiFe] Group 3bAquificaeDesulfurobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013706649.1Desulfobacca acetoxidans[NiFe] Group 3bDeltaproteobacteriaSyntrophobacteralesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013749017.1Pyrococcus sp. NA2[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein

Literature

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