| Q8YV89 | HIS81_NOSS1 | Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576) | hisC1 alr2092 | Detail |
| Q28TL1 | HIS8_JANSC | Jannaschia sp. (strain CCS1) | hisC Jann_1034 | Detail |
| Q04QW8 | HIS8_LEPBJ | Leptospira borgpetersenii serovar Hardjo-bovis (strain JB197) | hisC LBJ_2219 | Detail |
| Q2JTG5 | HIS8_SYNJA | Synechococcus sp. (strain JA-3-3Ab) (Cyanobacteria bacterium Yellowstone A-Prime) | hisC CYA_1885 | Detail |
| Q0AM22 | HIS8_MARMM | Maricaulis maris (strain MCS10) | hisC Mmar10_2379 | Detail |
| O28277 | HIS81_ARCFU | Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126) | hisC1 AF_2002 | Detail |
| Q9L6I2 | HIS8_THIRO | Thiocapsa roseopersicina | hisC | Detail |
| Q7MLS5 | HIS8_VIBVY | Vibrio vulnificus (strain YJ016) | hisC VV1352 | Detail |
| Q48ED0 | HIS8_PSE14 | Pseudomonas savastanoi pv. phaseolicola (strain 1448A / Race 6) (Pseudomonas syringae pv. phaseolicola (strain 1448A / Race 6)) | hisC PSPPH_4136 | Detail |
| Q323J1 | HIS8_SHIBS | Shigella boydii serotype 4 (strain Sb227) | hisC SBO_0847 | Detail |