| C4KHU3 | PDXS_SULIK | Sulfolobus islandicus (strain M.16.4 / Kamchatka #3) | pdxS M164_1556 | Detail |
| A1SJA2 | PDXT_NOCSJ | Nocardioides sp. (strain ATCC BAA-499 / JS614) | pdxT Noca_2382 | Detail |
| Q8EN04 | PDXT_OCEIH | Oceanobacillus iheyensis (strain DSM 14371 / CIP 107618 / JCM 11309 / KCTC 3954 / HTE831) | pdxT OB2686 | Detail |
| P10390 | NIFB_KLEPN | Klebsiella pneumoniae | nifB | Detail |
| Q65PL2 | PDXS_BACLD | Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / NBRC 12200 / NCIMB 9375 / NRRL NRS-1264 / Gibson 46) | pdxS BLi00016 BL02353 | Detail |
| D5VRM1 | NIFB_METIM | Methanocaldococcus infernus (strain DSM 11812 / JCM 15783 / ME) | nifB Metin_0554 | Detail |
| Q6L1R3 | PDXT_PICTO | Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828) | pdxT PTO0504 | Detail |
| A7Z0D3 | PDXS_BACVZ | Bacillus velezensis (strain DSM 23117 / BGSC 10A6 / FZB42) (Bacillus amyloliquefaciens subsp. plantarum) | pdxS RBAM_000140 | Detail |
| A4WHH5 | PDXT_PYRAR | Pyrobaculum arsenaticum (strain DSM 13514 / JCM 11321) | pdxT Pars_0227 | Detail |
| C5A4G9 | PDXS_THEGJ | Thermococcus gammatolerans (strain DSM 15229 / JCM 11827 / EJ3) | pdxS TGAM_0629 | Detail |