| Q9UJ83 | HACL1_HUMAN | Homo sapiens (Human) | HACL1 HPCL HPCL2 PHYH2 HSPC279 | Detail |
| P24427 | NIFB_RHILT | Rhizobium leguminosarum bv. trifolii | nifB | Detail |
| Q8CHM7 | HACL1_RAT | Rattus norvegicus (Rat) | Hacl1 2hpcl Hpcl2 Phyh2 | Detail |
| A0A2P1GIY1 | HL4_CATRO | Catharanthus roseus (Madagascar periwinkle) (Vinca rosea) | HL4 | Detail |
| P10390 | NIFB_KLEPN | Klebsiella pneumoniae | nifB | Detail |
| D5VRM1 | NIFB_METIM | Methanocaldococcus infernus (strain DSM 11812 / JCM 15783 / ME) | nifB Metin_0554 | Detail |
| Q9CFH4 | PHK_LACLA | Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis) | LL1502 L138230 | Detail |
| Q38YY6 | PHK_LACSS | Lactobacillus sakei subsp. sakei (strain 23K) | LCA_0289 | 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 |