| Q24VC8 | HEM3_DESHY | Desulfitobacterium hafniense (strain Y51) | hemC DSY2225 | Detail |
| Q54P93 | HEM3_DICDI | Dictyostelium discoideum (Slime mold) | hemC DDB_G0284697 | Detail |
| A5EW83 | HEM3_DICNV | Dichelobacter nodosus (strain VCS1703A) | hemC DNO_0299 | Detail |
| Q02EA3 | HEM3_PSEAB | Pseudomonas aeruginosa (strain UCBPP-PA14) | hemC PA14_69450 | Detail |
| A1RQK2 | HEM3_PYRIL | Pyrobaculum islandicum (strain DSM 4184 / JCM 9189 / GEO3) | hemC Pisl_0050 | Detail |
| Q3YSA8 | HEM3_EHRCJ | Ehrlichia canis (strain Jake) | hemC Ecaj_0354 | Detail |
| Q92HR5 | HEM3_RICCN | Rickettsia conorii (strain ATCC VR-613 / Malish 7) | hemC RC0706 | Detail |
| A8GZG4 | HEM3_SHEPA | Shewanella pealeana (strain ATCC 700345 / ANG-SQ1) | hemC Spea_0373 | Detail |
| Q5HFA2 | HEM3_STAAC | Staphylococcus aureus (strain COL) | hemC SACOL1717 | Detail |
| A5VM67 | HEM3_LACRD | Lactobacillus reuteri (strain DSM 20016) | hemC Lreu_1702 | Detail |