| Q039B6 | HIS3_LACP3 | Lactobacillus paracasei (strain ATCC 334 / BCRC 17002 / CIP 107868 / KCTC 3260 / NRRL B-441) | hisI LSEI_1428 | Detail |
| C1ANM8 | HIS3_MYCBT | Mycobacterium bovis (strain BCG / Tokyo 172 / ATCC 35737 / TMC 1019) | hisI JTY_1619 | Detail |
| A1B9F2 | HIS3_PARDP | Paracoccus denitrificans (strain Pd 1222) | hisI Pden_4080 | Detail |
| B2RYW9 | FAHD2_RAT | Rattus norvegicus (Rat) | Fahd2 Fahd2a | Detail |
| P53889 | FMP41_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | FMP41 YNL168C N1696 | Detail |
| O59667 | HIS2_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | his7 SPBC29A3.02c | Detail |
| Q8EFB6 | HIS2_SHEON | Shewanella oneidensis (strain MR-1) | hisI hisIE SO_2067 | Detail |
| Q9X0C5 | HIS2_THEMA | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | hisI hisIE TM_1035 | Detail |
| Q4K3E4 | HIS32_PSEF5 | Pseudomonas fluorescens (strain ATCC BAA-477 / NRRL B-23932 / Pf-5) | hisI2 PFL_6181 | Detail |
| Q9PBD1 | HIS2_XYLFA | Xylella fastidiosa (strain 9a5c) | hisI hisIE XF_2213 | Detail |