| A4WC73 | HIS4_ENT38 | Enterobacter sp. (strain 638) | hisA Ent638_2636 | Detail |
| A1A2H2 | HIS4_BIFAA | Bifidobacterium adolescentis (strain ATCC 15703 / DSM 20083 / NCTC 11814 / E194a) | hisA BAD_1124 | Detail |
| P10372 | HIS4_SALTY | Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720) | hisA STM2076 | Detail |
| Q6GDD0 | HIS4_STAAR | Staphylococcus aureus (strain MRSA252) | hisA SAR2756 | Detail |
| Q2YZ70 | HIS4_STAAB | Staphylococcus aureus (strain bovine RF122 / ET3-1) | hisA SAB2550c | Detail |
| Q2JRV8 | HIS4_SYNJA | Synechococcus sp. (strain JA-3-3Ab) (Cyanobacteria bacterium Yellowstone A-Prime) | hisA CYA_2513 | Detail |
| A4SMQ0 | HIS4_AERS4 | Aeromonas salmonicida (strain A449) | hisA ASA_2106 | Detail |
| Q0W0J3 | HIS4_METAR | Methanocella arvoryzae (strain DSM 22066 / NBRC 105507 / MRE50) | hisA UNCMA_01660 RRC389 | Detail |
| B2VFL2 | HIS4_ERWT9 | Erwinia tasmaniensis (strain DSM 17950 / CIP 109463 / Et1/99) | hisA ETA_13510 | Detail |
| B0TY42 | HIS4_FRAP2 | Francisella philomiragia subsp. philomiragia (strain ATCC 25017) | hisA Fphi_0064 | Detail |