Table 2.
Comparison of the genomes between Hydrogenovibrio thermophilus strain S5 and its closest relatives based on RAST annotations in this study.
| Hydrogenovibrio thermophilus strain S5 | Hydrogenovibrio crunogenus strain XCL-2 | Hydrogenovibrio sp. strain MA2-6 | Hydrogenovibrio sp. strain XS5 | |
|---|---|---|---|---|
| Isolated source | Hydrothermal vent environment in Southwest Indian Ridge | Hydrothermal vent environment in Pacific Ocean | Hydrothermal vent environment in Mid-Atlantic Ridge | Brine-seawater Interface of Kebrit Deep in the Red Sea |
| Genome size (Mb) | 2.77 | 2.43 | 2.68 | 2.63 |
| G+C content (%) | 50.5 | 43.1 | 50.1 | 50.1 |
| Coding density (%) | 89.0 | 90.3 | 88.3 | 89.3 |
| ANI | 73.17 | 96.94 | 90.10 | |
| SULFUR OXIDATION | ||||
| Sox | SoxCD; SoxAYX; soxB; SoxB | SoxCD; SoxAZYX; SoxB | SoxCD; SoxAZYX; SoxB; SoxXA, SoxB | SoxCD; SoxAZYX; SoxB; SoxB |
| Sulfide:quinone oxidoreductase (SQR) | + | + | + | + |
| Flavocytochrome-c sulfide dehydrogenase (FCC) | + | – | + | + |
| Intracellular sulfur oxidation protein (DsrEF) | + | – | + | + |
| ASSIMILATORY SULFATE REDUCTION | ||||
| Sulfite reductase (CysIJ) | + | – | + | – |
| Sulfate adenylyltransferase (CysDH) | + | – | + | – |
| HYDROGENASE | ||||
| [NiFe]-Hydrogenases Group 1 | Cluster I | Cluster II | Cluster I | – |
| [NiFe]-Hydrogenases Group 2b | + | – | + | – |
| CARBON METABOLISM | ||||
| Carbonic anhydrase | 1α-class, 1β-class, 2 γ-class | 1α-class, 2 β-class | 2 α-class, 2 β-class, 1 γ-class | 1α-class, 1β-class, 2 γ-class |
| Calvin-Benson cycle | + | + | + | + |
| Glycolysis/Gluconeogenesis | + | + | + | + |
| Pentose phosphate pathway | + | + | + | + |
| Acetate kinase | + | – | + | + |
| Phosphate acetyltransferase | + | – | + | + |
| TCA | + | + | + | + |
| GDP-mannose mannosyl hydrolase | – | – | + | – |
| CYANATE DEGRADATION | ||||
| Cyanate ABC transporter | + | – | + | – |
| Cyanate hydratase (CynS) | + | + | + | + |
| NITRATE AND NITRITE AMMONIFICATION | ||||
| Nitrate reductase (NasA) | – | + | – | + |
| Nitrite reductase (NirBD) | – | + | – | + |
| OXYGEN REDUCTION | ||||
| NADH ubiquinone oxidoreductase (NuoABCDEFGHIJKLMN) | + | + | + | + |
| Succinate dehydrogenase (FrdABC) | + | + | + | + |
| Cytochrome bc1 complex (PetABC) | + | + | + | + |
| Cytochrome c oxidoreductase (CcoNOP) | + | + | + | + |
| Cytochrome d ubiquinol oxidases (CydAB) | + | – | + | + |
The complete genome sequence of Hydrogenovibrio crunogenus strain XCL-2 (GenBank accession number: NC_007520), and the draft genome sequences of Hydrogenovibrio sp. strain MA2-6 (GenBank accession number: NZ_JOMK01000001) and Hydrogenovibrio sp. strain XS5 (GenBank accession number: LQBO00000000) are available in the NCBI database. +, present; –, absent.