661-690 of 852
| Rhodobacter sphaeroides 2.4.1 | Bacteria | Ni | user | Ni-Fe hydrogenase protein large subunit | YP_353568.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodobacter sphaeroides 2.4.1 | Bacteria | Ni | user | urease subunit alpha | YP_353381.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodobacterales bacterium HTCC2654 | Bacteria | Ni | user | urease, alpha subunit | ZP_01013082.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodococcus sp. RHA1 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | YP_700027.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodococcus sp. RHA1 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | YP_704548.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodococcus sp. RHA1 | Bacteria | Ni | user | urease subunit alpha | YP_705617.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodoferax ferrireducens T118 | Bacteria | Ni | user | Ni-Fe hydrogenase | YP_525350.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodoferax ferrireducens T118 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_525085.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodoferax ferrireducens T118 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_525320.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodoferax ferrireducens T118 | Bacteria | Ni | user | urease subunit alpha | YP_524642.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | Ni carbon monoxide dehydrogenase catalytic subunit | YP_534340.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | Ni-Fe hydrogenase HycE III large subunit | YP_534343.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | Ni-Fe hydrogenase HycE large subunit | YP_534411.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_533625.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_533628.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris BisB18 | Bacteria | Ni | user | urease subunit alpha | YP_533546.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris CGA009 | Bacteria | Ni | user | Ni-Fe hydrogenase large chain | NP_946314.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodopseudomonas palustris CGA009 | Bacteria | Ni | user | urease subunit alpha | NP_948998.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodospirillum rubrum ATCC 11170 | Bacteria | Ni | user | Ni carbon monoxide dehydrogenase, catalytic subunit | YP_426515.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodospirillum rubrum ATCC 11170 | Bacteria | Ni | user | Ni-Fe hydrogenase HycE large subunit | YP_425408.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodospirillum rubrum ATCC 11170 | Bacteria | Ni | user | Ni-Fe hydrogenase | YP_426513.1 | | PDB BLAST (NCBI) | STRING search |
| Rhodospirillum rubrum ATCC 11170 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_426250.1 | | PDB BLAST (NCBI) | STRING search |
| Robiginitalea biformata HTCC2501 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | ZP_01119574.1 | | PDB BLAST (NCBI) | STRING search |
| Roseiflexus castenholzii DSM 13941 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | YP_001431482.1 | | PDB BLAST (NCBI) | STRING search |
| Roseiflexus castenholzii DSM 13941 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | YP_001433219.1 | | PDB BLAST (NCBI) | STRING search |
| Roseiflexus castenholzii DSM 13941 | Bacteria | Ni | user | Ni-Fe hydrogenase large subunit | YP_001433862.1 | | PDB BLAST (NCBI) | STRING search |
| Roseiflexus sp. RS-1 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_001276649.1 | | PDB BLAST (NCBI) | STRING search |
| Roseiflexus sp. RS-1 | Bacteria | Ni | user | Ni-Fe hydrogenase, large subunit | YP_001277847.1 | | PDB BLAST (NCBI) | STRING search |
| Roseobacter denitrificans OCh 114 | Bacteria | Ni | user | urease subunit alpha | YP_683951.1 | | PDB BLAST (NCBI) | STRING search |
| Roseobacter sp. MED193 | Bacteria | Ni | user | urease, alpha subunit | ZP_01056362.1 | | PDB BLAST (NCBI) | STRING search |
