| Q5MZR5 | HIS4_SYNP6 | Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis nidulans) | hisA syc2265_c | Detail |
| Q9PM74 | HIS4_CAMJE | Campylobacter jejuni subsp. jejuni serotype O:2 (strain ATCC 700819 / NCTC 11168) | hisA Cj1601 | Detail |
| Q5HSJ0 | HIS4_CAMJR | Campylobacter jejuni (strain RM1221) | hisA CJE1773 | Detail |
| Q3M7Q7 | HIS4_TRIV2 | Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis) | hisA Ava_3372 | Detail |
| B3EM61 | HIS4_CHLPB | Chlorobium phaeobacteroides (strain BS1) | hisA Cphamn1_0475 | Detail |
| B0RSL8 | HIS4_XANCB | Xanthomonas campestris pv. campestris (strain B100) | hisA xcc-b100_2100 | Detail |
| Q02131 | HIS4_LACLA | Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis) | hisA LL1213 L0070 | Detail |
| A5FYE4 | HIS4_ACICJ | Acidiphilium cryptum (strain JF-5) | hisA Acry_1416 | Detail |
| Q66C53 | HIS4_YERPS | Yersinia pseudotuberculosis serotype I (strain IP32953) | hisA YPTB1557 | Detail |
| B7JA18 | HIS4_ACIF2 | Acidithiobacillus ferrooxidans (strain ATCC 23270 / DSM 14882 / CIP 104768 / NCIMB 8455) (Ferrobacillus ferrooxidans (strain ATCC 23270)) | hisA AFE_3045 | Detail |