| A2S753 | HIS4_BURM9 | Burkholderia mallei (strain NCTC 10229) | hisA BMA10229_A1793 | Detail |
| B9MJR4 | HIS4_CALBD | Caldicellulosiruptor bescii (strain ATCC BAA-1888 / DSM 6725 / Z-1320) (Anaerocellum thermophilum) | hisA Athe_1474 | Detail |
| B8GU31 | HIS4_THISH | Thioalkalivibrio sulfidiphilus (strain HL-EbGR7) | hisA Tgr7_0215 | Detail |
| A1WR23 | HIS4_VEREI | Verminephrobacter eiseniae (strain EF01-2) | hisA Veis_4377 | Detail |
| A2RKR8 | HIS4_LACLM | Lactococcus lactis subsp. cremoris (strain MG1363) | hisA llmg_1291 | Detail |
| P40545 | HIS4_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | HIS6 YIL020C | Detail |
| B0U3A9 | HIS4_XYLFM | Xylella fastidiosa (strain M12) | hisA Xfasm12_1415 | Detail |
| A0LTS5 | HIS4_ACIC1 | Acidothermus cellulolyticus (strain ATCC 43068 / 11B) | hisA Acel_1062 | Detail |
| A3M9N4 | HIS4_ACIBT | Acinetobacter baumannii (strain ATCC 17978 / CIP 53.77 / LMG 1025 / NCDC KC755 / 5377) | hisA A1S_3238 | Detail |
| A3N3W4 | HIS4_ACTP2 | Actinobacillus pleuropneumoniae serotype 5b (strain L20) | hisA APL_2026 | Detail |