| W5BGD1 | HIS7B_WHEAT | Triticum aestivum (Wheat) | | Detail |
| A4SV17 | HIS7_POLAQ | Polynucleobacter asymbioticus (strain DSM 18221 / CIP 109841 / QLW-P1DMWA-1) (Polynucleobacter necessarius subsp. asymbioticus) | hisB Pnuc_0109 | Detail |
| A6VJJ9 | HIS7_METM7 | Methanococcus maripaludis (strain C7 / ATCC BAA-1331) | hisB MmarC7_1567 | Detail |
| A5UMI3 | HIS7_METS3 | Methanobrevibacter smithii (strain ATCC 35061 / DSM 861 / OCM 144 / PS) | hisB Msm_1206 | Detail |
| C3NER4 | HIS7_SULIY | Sulfolobus islandicus (strain Y.G.57.14 / Yellowstone #1) | hisB YG5714_1541 | Detail |
| P61661 | HIS7_THET2 | Thermus thermophilus (strain HB27 / ATCC BAA-163 / DSM 7039) | hisB TT_C0061 | Detail |
| Q93AL8 | FLDC_CLOSG | Clostridium sporogenes | fldC | Detail |
| A4WA78 | MAND_ENT38 | Enterobacter sp. (strain 638) | Ent638_1932 | Detail |
| Q7V314 | HIS7_PROMP | Prochlorococcus marinus subsp. pastoris (strain CCMP1986 / NIES-2087 / MED4) | hisB PMM0281 | Detail |
| Q1I3G4 | HIS7_PSEE4 | Pseudomonas entomophila (strain L48) | hisB PSEEN5195 | Detail |