| A8A1P8 | HIS4_ECOHS | Escherichia coli O9:H4 (strain HS) | hisA EcHS_A2163 | Detail |
| O26931 | HIS4_METTH | Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum) | hisA MTH_843 | Detail |
| Q5LBD6 | HIS4_BACFN | Bacteroides fragilis (strain ATCC 25285 / DSM 2151 / JCM 11019 / NCTC 9343) | hisA BF2890 | Detail |
| Q64RT1 | HIS4_BACFR | Bacteroides fragilis (strain YCH46) | hisA BF3054 | Detail |
| A1R562 | HIS4_PAEAT | Paenarthrobacter aurescens (strain TC1) | hisA AAur_1608 | Detail |
| Q8YNQ6 | HIS4_NOSS1 | Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576) | hisA all4506 | Detail |
| A1S6Z5 | HIS4_SHEAM | Shewanella amazonensis (strain ATCC BAA-1098 / SB2B) | hisA Sama_1946 | Detail |
| P64359 | HIS4_STAAM | Staphylococcus aureus (strain Mu50 / ATCC 700699) | hisA SAV2674 | Detail |
| A5IWA1 | HIS4_STAA9 | Staphylococcus aureus (strain JH9) | hisA SaurJH9_2698 | Detail |
| B9DIP2 | HIS4_STACT | Staphylococcus carnosus (strain TM300) | hisA Sca_0631 | Detail |