| MMDBm0541555 | Escherichia coli K-12 | Bacteria | Proteobacteria | Not Available | Unknown | ECMDB |
| MMDBm0001308 | Bradyrhizobium japonicum USDA 110 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001507 | Cupriavidus taiwanensis LMG 19424 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0495533 | Hydrogenophaga pseudoflava | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0635800 | Hydrogenophilus thermoluteolus | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001865 | Methylococcus capsulatus str. Bath | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001977 | Nitrosomonas europaea ATCC 19718 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0505045 | Nitrosomonas sp. ENI-11 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0505212 | Nitrosospira sp. 40KI | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0505286 | Nitrosospira sp. TCH716 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0432267 | Nitrobacter vulgaris | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0432268 | Nitrobacter winogradskyi | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001347 | Burkholderia phymatum STM815 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001334 | Burkholderia xenovorans LB400 | Bacteria | Proteobacteria | Human | Not Available | RHEA |
| MMDBm0002450 | Rhodopseudomonas palustris HaA2 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002453 | Rhodopseudomonas palustris BisA53 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002451 | Rhodopseudomonas palustris BisB18 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002454 | Rhodopseudomonas palustris TIE-1 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0631551 | Solemya velum gill symbiont | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0451584 | Xanthobacter flavus | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002760 | Xanthobacter autotrophicus Py2 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001684 | Halothiobacillus neapolitanus c2 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002538 | Sinorhizobium meliloti 1021 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002141 | Rhodobacter capsulatus SB1003 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0002449 | Rhodopseudomonas palustris CGA009 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
