| Q8CQ91 | HIS2_STAES | Staphylococcus epidermidis (strain ATCC 12228) | hisI hisIE SE_0277 | Detail |
| O28329 | HIS3_ARCFU | Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126) | hisI AF_1950 | Detail |
| B7HHG6 | HIS3_BACC4 | Bacillus cereus (strain B4264) | hisI BCB4264_A1464 | Detail |
| C1EMQ8 | HIS3_BACC3 | Bacillus cereus (strain 03BB102) | hisI BCA_1466 | Detail |
| Q8BWY4 | MBLC1_MOUSE | Mus musculus (Mouse) | Mblac1 | Detail |
| B8ZRB5 | HIS3_MYCLB | Mycobacterium leprae (strain Br4923) | hisI MLBr01264 | Detail |
| Q87UY9 | HIS3_PSESM | Pseudomonas syringae pv. tomato (strain ATCC BAA-871 / DC3000) | hisI PSPTO_5153 | Detail |
| A3MSF2 | HIS3_PYRCJ | Pyrobaculum calidifontis (strain JCM 11548 / VA1) | hisI Pcal_0131 | Detail |
| C3KVX7 | HIS3_CLOB6 | Clostridium botulinum (strain 657 / Type Ba4) | hisI CLJ_B1680 | Detail |
| Q6AJV8 | HIS3_DESPS | Desulfotalea psychrophila (strain LSv54 / DSM 12343) | hisI DP2639 | Detail |