| [A] Methanospirillum hungatei (strain JF-1 / DSM 864) | METHJ02034 | Q2FSV0 | Radical SAM |
| [A] Methanosaeta thermophila (strain DSM 6194 / PT) | METTP00105 | A0B5D6 | Radical SAM domain protein PFAM: Radical SAM domain protein KEGG: mhu:Mhun_2156 radical SAM |
| [A] Methanococcoides burtonii (strain DSM 6242) | METBU01030 | Q12WV2 | Fe-S protein, radical SAM family |
| [A] Methanosarcina barkeri (strain Fusaro / DSM 804) | METBF00802 | Q46E87 | Fe-S oxidoreductase |
| [A] Methanopyrus kandleri | METKA01057 | Q8TWH6 | Fe-S oxidoreductase |
| [B] Sulfurihydrogenibium sp. (strain YO3AOP1) | SULSY00521 | B2V8A5 | Radical SAM domain protein |
| [B] Chlorobaculum parvum (strain NCIB 8327) | CHLP801508 | B3QPT3 | Radical SAM domain protein |
| [B] Chlorobium tepidum | CHLTE01416 | Q8KCI1 | MoaA/nifB/pqqE family protein |
| [B] Chlorobium chlorochromatii (strain CaD3) | CHLCH00676 | Q3ASR6 | MoaA/NifB/PqqE family protein |
| [B] Chlorobium limicola (strain DSM 245 / NBRC 103803) | CHLL201590 | B3EE07 | Radical SAM domain protein |
| [B] Chlorobium phaeobacteroides (strain DSM 266) | CHLPD01743 | A1BHI7 | Radical SAM domain protein PFAM: Radical SAM domain protein SMART: Elongator protein 3/MiaB/NifB KEGG: plt:Plut_1460 elongator protein 3/MiaB/NifB |
| [B] Prosthecochloris vibrioformis (strain DSM 265) | PROVI01250 | A4SFM3 | Radical SAM domain protein PFAM: Radical SAM domain protein SMART: Elongator protein 3/MiaB/NifB KEGG: plt:Plut_1460 elongator protein 3/MiaB/NifB |
| [B] Chloroherpeton thalassium (strain ATCC 35110 / GB-78) | CHLT300110 | B3QST9 | Radical SAM domain protein |
| [B] Pelodictyon luteolum (strain DSM 273) | PELLD01419 | Q3B2W2 | Elongator protein 3/MiaB/NifB |
| [B] Clostridium tetani | CLOTE00402 | Q898F6 | Fe-S oxidoreductase |
| [B] Syntrophus aciditrophicus (strain SB) | SYNAS02513 | Q2LWG0 | radical SAM superfamily protein |
| [B] Arcobacter butzleri (strain RM4018) | ARCB401737 | A8EVQ2 | Radical SAM domain protein |
| [B] Campylobacter concisus (strain 13826) | CAMC101351 | A7ZEJ6 | Radical SAM domain protein |
| [B] Campylobacter curvus (strain 525.92) | CAMC501431 | A7GZU6 | Radical SAM domain protein |
| [B] Campylobacter fetus subsp. fetus (strain 82-40) | CAMFF01378 | A0RQV8 | radical SAM domain protein identified by match to protein family HMM PF04055 |
| [B] Campylobacter hominis (strain ATCC BAA-381 / LMG 19568 / NCTC 13146 / CH001A) | CAMHC01198 | A7I2S9 | Radical SAM domain protein |
| [B] Campylobacter jejuni | CAMJE01178 | A3YNA9 | Putative radical SAM domain protein |
| [B] Campylobacter jejuni (strain RM1221) | CAMJR01336 | Q5HTL8 | identified by match to protein family HMM PF04055 radical SAM domain protein |
| [B] Campylobacter jejuni subsp. doylei (strain ATCC BAA-1458 / RM4099 / 269.97) | CAMJD00378 | A7H2D7 | Radical SAM domain protein |
| [B] Campylobacter jejuni subsp. jejuni serotype O:23/36 (strain 81-176) | CAMJJ01190 | A1W0M8 | radical SAM domain protein identified by match to protein family HMM PF04055 |
| [B] Campylobacter jejuni subsp. jejuni serotype O:6 (strain 81116 / NCTC 11828) | CAMJ801181 | A8FMU9 | Radical SAM domain protein |
| [B] Campylobacter lari (strain RM2100 / D67 / ATCC BAA-1060) | CAMLR00497 | B9KFN0 | Putative uncharacterized protein |
| [B] Helicobacter pylori | HELPY00115 | Y117_HELPY | similar to GB:L77117 SP:Q58708 PID:1591951 percent identity: 34.23; identified by sequence similarity; putative conserved hypothetical protein |
| [B] Helicobacter pylori (strain HPAG1) | HELPH00118 | Q1CV38 | hypothetical protein |
| [B] Helicobacter pylori (strain Shi470) | HELPS00109 | B2URU6 | Putative uncharacterized protein |
| [B] Helicobacter pylori J99 | HELPJ00108 | Y117_HELPJ | Hypothetical UPF0026 protein JHP0109 |
| [B] Sulfurimonas denitrificans (strain ATCC 33889 / DSM 1251) | SULDN00630 | Q30SW9 | Radical SAM |
| [B] Wolinella succinogenes | WOLSU00347 | Q7MSJ9 | conserved hypothetical protein |
| [B] Nautilia profundicola (strain ATCC BAA-1463 / DSM 18972 / AmH) | NAUPA00640 | B9L8X4 | Radical SAM domain protein |
| [B] Nitratiruptor sp. (strain SB155-2) | NITSB00485 | A6Q290 | MoaA/NifB/PqqE family protein |
| [B] Thermotoga maritima | THEMA01271 | Q9X114 | Putative uncharacterized protein |
| [B] Thermotoga sp. (strain RQ2) | THESQ01506 | B1LC61 | Radical SAM domain protein |