| B7MWU2 | HIS4_ECO81 | Escherichia coli O81 (strain ED1a) | hisA ECED1_2373 | Detail |
| B0UHR6 | HIS4_METS4 | Methylobacterium sp. (strain 4-46) | hisA M446_6791 | Detail |
| Q8FY08 | HIS4_BRUSU | Brucella suis biovar 1 (strain 1330) | hisA BR2084 BS1330_I2078 | Detail |
| Q9ZHE2 | HIS4_BUCAP | Buchnera aphidicola subsp. Schizaphis graminum (strain Sg) | hisA BUsg_097 | Detail |
| Q0I9E5 | HIS4_SYNS3 | Synechococcus sp. (strain CC9311) | hisA sync_1723 | Detail |
| A5G8T0 | HIS4_GEOUR | Geobacter uraniireducens (strain Rf4) (Geobacter uraniumreducens) | hisA Gura_4054 | Detail |
| A7ZES8 | HIS4_CAMC1 | Campylobacter concisus (strain 13826) | hisA Ccon26_14400 CCC13826_0444 | Detail |
| A7MX07 | HIS4_VIBCB | Vibrio campbellii (strain ATCC BAA-1116 / BB120) | hisA VIBHAR_01835 | Detail |
| B9LI75 | HIS4_CHLSY | Chloroflexus aurantiacus (strain ATCC 29364 / DSM 637 / Y-400-fl) | hisA Chy400_0371 | Detail |
| Q3BUF3 | HIS4_XANC5 | Xanthomonas campestris pv. vesicatoria (strain 85-10) | hisA XCV1879 | Detail |