[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_024879702.1Methylosinus sp. LW3[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[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_003611589.1Methylosinus trichosporium[NiFe] Group 3bAlphaproteobacteriaRhizobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020412786.1Microbulbifer variabilis[NiFe] Group 3bGammaproteobacteriaAlteromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014814971.1Mycobacterium chubuense[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_024444559.1Mycobacterium iranicum[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_023365427.1Mycobacterium kansasii[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_020730473.1Mycobacterium marinum[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_007168195.1Mycobacterium parascrofulaceum[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_003895383.1Mycobacterium smegmatis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_003924002.1Mycobacterium thermoresistibile[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_003918688.1Mycobacterium xenopi[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_007021942.1Neptuniibacter caesariensis[NiFe] Group 3bGammaproteobacteriaOceanospirillalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_005000139.1Nitrococcus mobilis[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013032567.1Nitrosococcus halophilus[NiFe] Group 3bGammaproteobacteriaChromatialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_005006913.1Nitrospina gracilis[NiFe] Group 3bNitrospinaNitrospinalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_026214329.1Nonomuraea coxensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[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_028300037.1Oceanospirillum beijerinckii[NiFe] Group 3bGammaproteobacteriaAeromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_022808428.1Omnitrophus fodinae[NiFe] Group 3bOmnitrophicaUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_029912396.1Pelobacter seleniigenes[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_029915222.1Pelobacter seleniigenes[NiFe] Group 3bDeltaproteobacteriaDesulfuromonadalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012509156.1Pelodictyon phaeoclathratiforme[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012676609.1Persephonella marina[NiFe] Group 3bAquificaeAquificalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_002644708.1Planctomyces maris[NiFe] Group 3bPlanctomycetesPlanctomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_007219971.1Planctomycete KSU-1[NiFe] Group 3bPlanctomycetesPlanctomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_006969455.1Plesiocystis pacifica[NiFe] Group 3bDeltaproteobacteriaMyxococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_012506474.1Prosthecochloris aestuarii[NiFe] Group 3bChlorobiChlorobialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_010867988.1Pyrococcus abyssi[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_010868072.1Pyrococcus abyssi[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[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_010885378.1Pyrococcus horikoshii[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013749130.1Pyrococcus sp. NA2[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_013749017.1Pyrococcus sp. NA2[NiFe] Group 3bEuryarchaeotaThermococcalesBidirectionalTolerant4[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_013905579.1Pyrococcus yayanosii[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_005514364.1Rhodococcus equi[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_021333622.1Rhodococcus erythropolis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_007298856.1Rhodococcus imtechensis[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_005257894.1Rhodococcus opacus[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_003938391.1Rhodococcus ruber[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_005565942.1Rhodococcus wratislaviensis[NiFe] Group 3bActinobacteriaActinomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_009094014.1Rhodopirellula sp. SWK7[NiFe] Group 3bPlanctomycetesPlanctomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_014068049.1Rhodothermus marinus[NiFe] Group 3bBacteroidetesUnclassifiedBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_010585297.1Schlesneria paludicola[NiFe] Group 3bPlanctomycetesPlanctomycetalesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein
WP_009139266.1Slackia piriformis[NiFe] Group 3bActinobacteriaCoriobacterialesBidirectionalTolerant4[NiFe]-centre, 3 x [4Fe4S] clustersDiaphorase, [FeS] protein

Literature

Genetics:

Physiology:

Biochemistry:

Chemistry: