| Q8R886 | HIS2_CALS4 | Caldanaerobacter subterraneus subsp. tengcongensis (strain DSM 15242 / JCM 11007 / NBRC 100824 / MB4) (Thermoanaerobacter tengcongensis) | hisI hisIE TTE2132 | Detail |
| O13471 | HIS2_KLULA | Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37) (Yeast) (Candida sphaerica) | HIS4 KLLA0C01452g | Detail |
| P64356 | HIS2_STAAN | Staphylococcus aureus (strain N315) | hisI hisIE SA2464 | Detail |
| P42969 | LIPC_BACSU | Bacillus subtilis (strain 168) | lipC ycsK BSU04110 | Detail |
| Q7U635 | HIS2_SYNPX | Synechococcus sp. (strain WH8102) | hisI hisIE SYNW1505 | Detail |
| Q7A123 | LYTN_STAAW | Staphylococcus aureus (strain MW2) | lytN MW1130 | Detail |
| Q4ZZG6 | HIS3_PSEU2 | Pseudomonas syringae pv. syringae (strain B728a) | hisI Psyr_0386 | Detail |
| Q9S2U1 | HIS3_STRCO | Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145) | hisI SCO2044 SC4G6.13c | Detail |
| A8ZXG8 | HIS3_DESOH | Desulfococcus oleovorans (strain DSM 6200 / Hxd3) | hisI Dole_1119 | Detail |
| B7V3F9 | HIS3_PSEA8 | Pseudomonas aeruginosa (strain LESB58) | hisI PLES_54561 | Detail |