This entry was last updated at: June 13, 2016, 11:11 a.m.
Group | [NiFe] Group 2: Alternative and sensory H2-uptake [NiFe] hydrogenases |
Subgroup | [NiFe] Group 2b: Histidine kinase-linked |
Function | H2-sensing in regulatory cascades. Enzyme transfers H2-liberated electrons to PAS domain. Associated redox change modulates histidine kinase activity and in turn the two-component system controlling expression of primary H2-uptake hydrogenases. |
Activity | H2-sensing |
Oxygen tolerance | O2-tolerant |
Localisation | Cytosolic |
Ecosystem distribution | Various soil and aquatic samples |
Taxonomic distribution | Exclusive to aerobic Proteobacteria |
e.g. Ralstonia eutropha (WP_011153946.1):
Structures |
|
Subunits | 3 |
Subunit description | HupV (hydrogenase large subunit) HupU (hydrogenase small subunit) HupK (histidine kinase) Interacts with response regulator (HupR) |
Catalytic site | [NiFe]-centre |
FeS clusters | Proximal: 4Cys[4Fe4S] Medial: 4Cys[4Fe4S] Distal: 3Cys1His[4Fe4S] |
NCBI Accession | Organism | Hydrogenase Class | Phylum | Order | Activity (Predicted) | Oxygen Tolerance (Predicted) | Subunits (Predicted) | Metal Centres (Predicted) | Accessory Subunits (Predicted) |
---|---|---|---|---|---|---|---|---|---|
WP_022723662.1 | Rhodopseudomonas sp. B29 | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_028877931.1 | Terasakiella pusilla | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_011996000.1 | Xanthobacter autotrophicus | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_024281261.1 | Xanthobacter sp. 126 | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_029556474.1 | Xanthobacter sp. 91 | [NiFe] Group 2b | Alphaproteobacteria | Rhizobiales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_009505605.1 | Citreicella sp. 357 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008886444.1 | Citreicella sp. SE45 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_011749363.1 | Paracoccus denitrificans | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_024844879.1 | Paracoccus pantotrophus | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_028714014.1 | Paracoccus sp. J55 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_028717756.1 | Paracoccus yeei | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_007796497.1 | Pelagibaca bermudensis | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_023918084.1 | Rhodobacter capsulatus | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_009566015.1 | Rhodobacter sp. AKP1 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_023664198.1 | Rhodobacter sp. CACIA14H1 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008030826.1 | Rhodobacter sp. SW2 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_002720656.1 | Rhodobacter sphaeroides | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008386856.1 | Rhodovulum sp. PH10 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008282513.1 | Roseovarius sp. TM1035 | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_005863651.1 | Sagittula stellata | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_020043467.1 | Salipiger mucosus | [NiFe] Group 2b | Alphaproteobacteria | Rhodobacterales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_011767530.1 | Azoarcus sp. BH72 | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_015437371.1 | Azoarcus sp. KH32C | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_028993698.1 | Azonexus hydrophilus | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | [FeS] protein, hypothetical proteins |
WP_026685912.1 | Azovibrio restrictus | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_018412518.1 | Methyloversatilis sp. NVD | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_020162849.1 | Methyloversatilis universalis | [NiFe] Group 2b | Betaproteobacteria | Rhodocyclales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_025825893.1 | Acetobacter okinawensis | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_004274639.1 | Azospirillum amazonense | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_029009282.1 | Azospirillum halopraeferens | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_012976476.1 | Azospirillum lipoferum | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_024080410.1 | Magnetospirillum gryphiswaldense | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_011384345.1 | Magnetospirillum magneticum | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008622301.1 | Magnetospirillum sp. SO-1 | [NiFe] Group 2b | Alphaproteobacteria | Rhodospiralles | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_008068222.1 | Novosphingobium nitrogenifigens | [NiFe] Group 2b | Alphaproteobacteria | Sphingomonadales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_020394871.1 | Thiothrix disciformis | [NiFe] Group 2b | Gammaproteobacteria | Thiotrichales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
WP_002706876.1 | Thiothrix nivea | [NiFe] Group 2b | Gammaproteobacteria | Thiotrichales | Sensory | Tolerant | 4 | [NiFe]-centre, 3 x [4Fe4S] clusters | Histidine kinase, response regulator |
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