| Q8CWW4 | HEMH_STRMU | Streptococcus mutans serotype c (strain ATCC 700610 / UA159) | hemH hemZ SMU_2063 | Detail |
| Q8DGU6 | HEMH_THEEB | Thermosynechococcus elongatus (strain BP-1) | hemH tlr2216 | Detail |
| P50038 | CPCF_THEEB | Thermosynechococcus elongatus (strain BP-1) | cpcF tlr1962 | Detail |
| P06770 | NIFB_BRADU | Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110) | nifB blr1759 | Detail |
| A9WXE2 | HEMH_BRUSI | Brucella suis (strain ATCC 23445 / NCTC 10510) | hemH BSUIS_B0081 | Detail |
| Q12BZ9 | HEMH_POLSJ | Polaromonas sp. (strain JS666 / ATCC BAA-500) | hemH Bpro_2013 | Detail |
| Q9PJQ6 | HEMH_CHLMU | Chlamydia muridarum (strain MoPn / Nigg) | hemH TC_0772 | Detail |
| Q3KLL2 | HEMH_CHLTA | Chlamydia trachomatis serovar A (strain ATCC VR-571B / DSM 19440 / HAR-13) | hemH CTA_0532 | Detail |
| B8HK77 | HEMH_CYAP4 | Cyanothece sp. (strain PCC 7425 / ATCC 29141) | hemH Cyan7425_4517 | Detail |
| Q6APB0 | HEMH_DESPS | Desulfotalea psychrophila (strain LSv54 / DSM 12343) | hemH DP1085 | Detail |