| Q9Z7G1 | HEM2_CHLPN | Chlamydia pneumoniae (Chlamydophila pneumoniae) | hemB CPn_0744 CP_0001 CpB0772 | Detail |
| Q59334 | HEM2_CHLP8 | Chlorobaculum parvum (strain NCIB 8327) (Chlorobium vibrioforme subsp. thiosulfatophilum (strain DSM 263 / NCIB 8327)) | hemB Cpar_0732 | Detail |
| A6VRA1 | MAND_MARMS | Marinomonas sp. (strain MWYL1) | Mmwyl1_0037 | Detail |
| P40802 | PKSI_BACSU | Bacillus subtilis (strain 168) | pksI BSU17170 | Detail |
| P10518 | HEM2_MOUSE | Mus musculus (Mouse) | Alad Lv | Detail |
| B1ELW6 | MAND_ESCAT | Escherichia albertii (strain TW07627) | rspA ESCAB7627_2604 | Detail |
| Q5HNN5 | HEM2_STAEQ | Staphylococcus epidermidis (strain ATCC 35984 / RP62A) | hemB SERP1232 | Detail |
| Q42836 | HEM2_HORVU | Hordeum vulgare (Barley) | HEMB ALAD | Detail |
| Q59295 | HEM2_RUMJO | Ruminiclostridium josui (Clostridium josui) | hemB | Detail |
| P45623 | HEM2_SELMA | Selaginella martensii (Martens's spike moss) | HEMB ALA2 | Detail |