| A1U5H6 | HIS4_MARHV | Marinobacter hydrocarbonoclasticus (strain ATCC 700491 / DSM 11845 / VT8) | hisA Maqu_3171 | Detail |
| Q3ICF4 | HIS4_PSEHT | Pseudoalteromonas haloplanktis (strain TAC 125) | hisA PSHAb0489 | Detail |
| Q2YAU9 | HIS4_NITMU | Nitrosospira multiformis (strain ATCC 25196 / NCIMB 11849 / C 71) | hisA Nmul_A0815 | Detail |
| Q1MNC1 | HIS4_RHIL3 | Rhizobium leguminosarum bv. viciae (strain 3841) | hisA RL0043 | Detail |
| Q2G9L9 | HIS4_NOVAD | Novosphingobium aromaticivorans (strain ATCC 700278 / DSM 12444 / CIP 105152 / NBRC 16084 / F199) | hisA Saro_1009 | Detail |
| B4SCY8 | HIS4_PELPB | Pelodictyon phaeoclathratiforme (strain DSM 5477 / BU-1) | hisA Ppha_0496 | Detail |
| Q0AW40 | HIS4_SYNWW | Syntrophomonas wolfei subsp. wolfei (strain DSM 2245B / Goettingen) | hisA Swol_1766 | Detail |
| B0K628 | HIS4_THEPX | Thermoanaerobacter sp. (strain X514) | hisA Teth514_1005 | Detail |
| A5UA16 | HIS4_HAEIE | Haemophilus influenzae (strain PittEE) | hisA CGSHiEE_00625 | Detail |
| A0RZ77 | HIS4_CENSY | Cenarchaeum symbiosum (strain A) | hisA CENSYa_2041 | Detail |