| MMDBm0881918 | Candidatus Nitrososphaera gargensis Ga9.2 | Archaea | Thaumarchaeota | Not Available | Metabolic reconstruction | VMH |
| MMDBm0881917 | Methanomassiliicoccus luminyensis B10 | Archaea | Euryarchaeota | Not Available | Metabolic reconstruction | VMH |
| MMDBm0002448 | Rhodopirellula baltica SH 1 | Bacteria | Planctomycetes | Not Available | Not Available | RHEA |
| MMDBm0001956 | uncultured methanogenic archaeon RC-I | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001953 | Archaeoglobus fulgidus DSM 4304 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001865 | Methylococcus capsulatus str. Bath | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001862 | Methylobacterium extorquens AM1 | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001855 | Methylobacillus flagellatus KT | Bacteria | Proteobacteria | Not Available | Not Available | RHEA |
| MMDBm0001852 | Methanothermus fervidus DSM 2088 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001850 | Methanothermobacter marburgensis str. Marburg | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001849 | Methanothermobacter thermautotrophicus str. Delta H | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001848 | Methanospirillum hungatei JF-1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001847 | Methanosphaerula palustris E1-9c | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001846 | Methanosphaera stadtmanae DSM 3091 | Archaea | Euryarchaeota | Not Available | Metabolic reconstruction | VMH |
| MMDBm0001845 | Methanosarcina barkeri str. Fusaro | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001844 | Methanosarcina mazei Go1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001843 | Methanosarcina acetivorans C2A | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001840 | Methanosaeta thermophila PT | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001839 | Methanoregula boonei 6A8 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001838 | Methanopyrus kandleri AV19 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001836 | Methanohalophilus mahii DSM 5219 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001835 | Methanohalobium evestigatum Z-7303 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001834 | Methanoculleus marisnigri JR1 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001831 | Methanococcus voltae A3 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
| MMDBm0001829 | Methanococcus maripaludis C7 | Archaea | Euryarchaeota | Not Available | Not Available | RHEA |
