| Q10ZK3 | CPXS1_TRIEI | Trichodesmium erythraeum (strain IMS101) | cpcS1 Tery_3198 | Detail |
| B4TMG7 | HEMH_SALSV | Salmonella schwarzengrund (strain CVM19633) | hemH SeSA_A0551 | Detail |
| P56265 | NIFB_KLEOX | Klebsiella oxytoca | nifB | Detail |
| P46044 | NIFB_FRAAL | Frankia alni | nifB | Detail |
| A0KL51 | HEMH_AERHH | Aeromonas hydrophila subsp. hydrophila (strain ATCC 7966 / DSM 30187 / JCM 1027 / KCTC 2358 / NCIMB 9240) | hemH AHA_2488 | Detail |
| Q6D7Z4 | HEMH_PECAS | Pectobacterium atrosepticum (strain SCRI 1043 / ATCC BAA-672) (Erwinia carotovora subsp. atroseptica) | hemH ECA1181 | Detail |
| Q10WR6 | HEMH_TRIEI | Trichodesmium erythraeum (strain IMS101) | hemH Tery_4313 | Detail |
| Q3SHA3 | HEMH_THIDA | Thiobacillus denitrificans (strain ATCC 25259) | hemH Tbd_2033 | Detail |
| B1JER5 | HEMH_PSEPW | Pseudomonas putida (strain W619) | hemH PputW619_4445 | Detail |
| B0SF60 | HEMH_LEPBA | Leptospira biflexa serovar Patoc (strain Patoc 1 / Ames) | hemH LBF_1123 | Detail |