| B1L872 | HIS4_THESQ | Thermotoga sp. (strain RQ2) | hisA TRQ2_1771 | Detail |
| Q9X0C7 | HIS4_THEMA | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | hisA TM_1037 | Detail |
| B5YIB4 | HIS4_THEYD | Thermodesulfovibrio yellowstonii (strain ATCC 51303 / DSM 11347 / YP87) | hisA THEYE_A1955 | Detail |
| Q89WM5 | HIS4_BRADU | Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110) | hisA blr0653 | Detail |
| B8D710 | HIS4_BUCAT | Buchnera aphidicola subsp. Acyrthosiphon pisum (strain Tuc7) | hisA BUAPTUC7_103 | Detail |
| B4E640 | HIS4_BURCJ | Burkholderia cenocepacia (strain ATCC BAA-245 / DSM 16553 / LMG 16656 / NCTC 13227 / J2315 / CF5610) (Burkholderia cepacia (strain J2315)) | hisA BceJ2315_03190 BCAL0317 | Detail |
| A0RQL2 | HIS4_CAMFF | Campylobacter fetus subsp. fetus (strain 82-40) | hisA CFF8240_1351 | Detail |
| A4JAW8 | HIS4_BURVG | Burkholderia vietnamiensis (strain G4 / LMG 22486) (Burkholderia cepacia (strain R1808)) | hisA Bcep1808_0409 | Detail |
| Q7VHY5 | HIS4_HELHP | Helicobacter hepaticus (strain ATCC 51449 / 3B1) | hisA HH_0826 | Detail |
| Q5WX95 | HIS4_LEGPL | Legionella pneumophila (strain Lens) | hisA lpl1203 | Detail |