| P64125 | HEMH_STAAN | Staphylococcus aureus (strain N315) | hemH SA1651 | Detail |
| Q0I8L9 | HEMH_SYNS3 | Synechococcus sp. (strain CC9311) | hemH sync_2000 | 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 |
| P32396 | HEMH_BACSU | Bacillus subtilis (strain 168) | hemH hemF BSU10130 | Detail |
| Q3JP06 | HEMH_BURP1 | Burkholderia pseudomallei (strain 1710b) | hemH BURPS1710b_3326 | Detail |
| Q83H94 | HEMH_TROW8 | Tropheryma whipplei (strain TW08/27) (Whipple's bacillus) | hemH TW747 | Detail |
| Q83FA4 | HEMH_COXBU | Coxiella burnetii (strain RSA 493 / Nine Mile phase I) | hemH CBU_0042 | Detail |
| Q8PEX0 | HEMH_XANAC | Xanthomonas axonopodis pv. citri (strain 306) | hemH XAC4220 | Detail |
| A5WH56 | HEMH_PSYWF | Psychrobacter sp. (strain PRwf-1) | hemH PsycPRwf_2057 | Detail |