| Q9X3W1 | HIS3_ZYMMO | Zymomonas mobilis subsp. mobilis (strain ATCC 31821 / ZM4 / CP4) | hisI ZMO1178 | Detail |
| Q8DTR4 | HIS3_STRMU | Streptococcus mutans serotype c (strain ATCC 700610 / UA159) | hisI SMU_1263 | Detail |
| P49018 | GPI8_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | GPI8 YDR331W D9798.2 | Detail |
| Q9MAA7 | GID1A_ARATH | Arabidopsis thaliana (Mouse-ear cress) | GID1A CXE10 GID1L1 At3g05120 T12H1.8 | Detail |
| B3PNV9 | HIS3_RHIE6 | Rhizobium etli (strain CIAT 652) | hisI RHECIAT_CH0002290 | Detail |
| B1J2S5 | HIS3_PSEPW | Pseudomonas putida (strain W619) | hisI PputW619_0451 | Detail |
| Q21U90 | HIS3_RHOFT | Rhodoferax ferrireducens (strain ATCC BAA-621 / DSM 15236 / T118) (Albidiferax ferrireducens) | hisI Rfer_2952 | Detail |
| Q5LST2 | HIS3_RUEPO | Ruegeria pomeroyi (strain ATCC 700808 / DSM 15171 / DSS-3) (Silicibacter pomeroyi) | hisI SPO1684 | Detail |
| B0REU6 | HIS3_CLAMS | Clavibacter michiganensis subsp. sepedonicus (strain ATCC 33113 / DSM 20744 / JCM 9667 / LMG 2889 / C-1) (Corynebacterium sepedonicum) | hisI CMS2014 | Detail |
| B2UX19 | HIS3_CLOBA | Clostridium botulinum (strain Alaska E43 / Type E3) | hisI CLH_2624 | Detail |