| P10390 | NIFB_KLEPN | Klebsiella pneumoniae | nifB | Detail |
| D5VRM1 | NIFB_METIM | Methanocaldococcus infernus (strain DSM 11812 / JCM 15783 / ME) | nifB Metin_0554 | Detail |
| Q8KC85 | NIFB_CHLTE | Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS) (Chlorobium tepidum) | nifB CT1540 | Detail |
| P09824 | NIFB_RHIME | Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium meliloti) | nifB RA0442 SMa0814 | Detail |
| B6YU51 | DAPAL_THEON | Thermococcus onnurineus (strain NA1) | dapAL TON_0506 | Detail |
| O58577 | DAPAL_PYRHO | Pyrococcus horikoshii (strain ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3) | dapAL PH0847 | Detail |
| A1VEQ1 | ARLY_DESVV | Desulfovibrio vulgaris subsp. vulgaris (strain DP4) | argH Dvul_1901 | Detail |
| Q5HBZ4 | ARLY_EHRRW | Ehrlichia ruminantium (strain Welgevonden) | argH Erum1830 ERWE_CDS_01820 | Detail |
| B7NFR0 | ARLY_ECOLU | Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC) | argH ECUMN_4491 | Detail |
| Q04RM0 | ARLY_LEPBJ | Leptospira borgpetersenii serovar Hardjo-bovis (strain JB197) | argH LBJ_1932 | Detail |