| B5FJ27 | FABZ_SALDC | Salmonella dublin (strain CT_02021853) | fabZ SeD_A0249 | Detail |
| B1LJQ9 | FABA_ECOSM | Escherichia coli (strain SMS-3-5 / SECEC) | fabA EcSMS35_2166 | Detail |
| Q46915 | GUDX_ECOLI | Escherichia coli (strain K12) | gudX ygcY b2788 JW2759 | Detail |
| P38790 | HTD2_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | HTD2 RMD12 YHR067W | 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 |
| 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 |
| Q1RH95 | FABZ_RICBR | Rickettsia bellii (strain RML369-C) | fabZ RBE_1188 | Detail |