This entry was last updated at: Feb. 9, 2018, 7:26 a.m.
Group | [NiFe] Group 1: Respiratory H2-uptake [NiFe] hydrogenases |
Subgroup | [NiFe] Group 1d: Oxygen-tolerant |
Function | Hydrogenotrophic respiration using O2 or fumarate as terminal electron acceptors. Enzyme transfers H2-liberated electrons through cyt b and quinone to terminal reductase. |
Activity | H2-uptake (unidirectional) |
Oxygen tolerance | O2-tolerant |
Localisation | Membrane-bound |
Ecosystem distribution | Diverse soil, aquatic, and host-associated environments |
Taxonomic distribution | Widespread among obligately aerobic and facultatively anaerobic bacteria |
e.g. Escherichia coli (WP_021522685.1):
Structures |
|
Subunits | 3 |
Subunit description | HyaB (hydrogenase large subunit) HyaA (hydrogenase small subunit) HyaC (cytochrome b subunit) |
Catalytic site | [NiFe]-centre |
FeS clusters | Proximal: 6Cys[4Fe3S] Medial: 3Cys[3Fe4S] Distal: 3Cys1His[4Fe4S] |
NCBI Accession | Organism | Hydrogenase Class | Phylum | Order | Activity (Predicted) | Oxygen Tolerance (Predicted) | Subunits (Predicted) | Metal Centres (Predicted) | Accessory Subunits (Predicted) |
---|---|---|---|---|---|---|---|---|---|
WP_012703499.1 | Azotobacter vinelandii | [NiFe] Group 1d | Gammaproteobacteria | Pseudomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_023105852.1 | Pseudomonas aeruginosa | [NiFe] Group 1d | Gammaproteobacteria | Pseudomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_010563027.1 | Pseudomonas extremaustralis | [NiFe] Group 1d | Gammaproteobacteria | Pseudomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_024762404.1 | Pseudomonas nitroreducens | [NiFe] Group 1d | Gammaproteobacteria | Pseudomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_017845591.1 | Pseudomonas veronii | [NiFe] Group 1d | Gammaproteobacteria | Pseudomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_002683184.1 | Beggiatoa alba | [NiFe] Group 1d | Gammaproteobacteria | Thiotrichales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_029908155.1 | Hydrogenovibrio marinus | [NiFe] Group 1d | Gammaproteobacteria | Thiotrichales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_029939087.1 | Thiomicrospira sp. MA2-6 | [NiFe] Group 1d | Gammaproteobacteria | Thiotrichales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_020394857.1 | Thiothrix disciformis | [NiFe] Group 1d | Gammaproteobacteria | Thiotrichales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_002706872.1 | Thiothrix nivea | [NiFe] Group 1d | Gammaproteobacteria | Thiotrichales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_028007256.1 | Solimonas flava | [NiFe] Group 1d | Gammaproteobacteria | Xanthomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_020647929.1 | Solimonas variicoloris | [NiFe] Group 1d | Gammaproteobacteria | Xanthomonadales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
CUU03002.1 | Kryptonium thompsoni | [NiFe] Group 1d | Kryptonia | N/A | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_014450582.1 | Leptospirillum ferrooxidans | [NiFe] Group 1d | Nitrospirae | Nitrospirales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_009059758.1 | Methylacidiphilum fumariolicum | [NiFe] Group 1d | Verrucomicrobia | Methylacidiphilales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
WP_012463656.1 | Methylacidiphilum infernorum | [NiFe] Group 1d | Verrucomicrobia | Methylacidiphilales | Aerobic Uptake | Tolerant | 3 | [NiFe]-centre, 1 x [4Fe3S] cluster, 1 x [3Fe4S] cluster, 1 x [4Fe4S] cluster | Cytochrome b |
Genetics:
Physiology:
Biochemistry:
Chemistry: