| B3E618 | HIS4_GEOLS | Geobacter lovleyi (strain ATCC BAA-1151 / DSM 17278 / SZ) | hisA Glov_1019 | Detail |
| A9A6L5 | HIS4_METM6 | Methanococcus maripaludis (strain C6 / ATCC BAA-1332) | hisA MmarC6_0493 | Detail |
| Q8PWS2 | HIS4_METMA | Methanosarcina mazei (strain ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88) (Methanosarcina frisia) | hisA MM_1504 | Detail |
| B5YE89 | HIS4_DICT6 | Dictyoglomus thermophilum (strain ATCC 35947 / DSM 3960 / H-6-12) | hisA DICTH_0997 | Detail |
| B7JFZ4 | HIS4_BACC0 | Bacillus cereus (strain AH820) | hisA BCAH820_1500 | Detail |
| B8IPH4 | HIS4_METNO | Methylobacterium nodulans (strain LMG 21967 / CNCM I-2342 / ORS 2060) | hisA Mnod_7530 | Detail |
| B8GJY2 | HIS4_METPE | Methanosphaerula palustris (strain ATCC BAA-1556 / DSM 19958 / E1-9c) | hisA Mpal_1746 | Detail |
| B7MDH8 | HIS4_ECO45 | Escherichia coli O45:K1 (strain S88 / ExPEC) | hisA ECS88_2123 | Detail |
| B7L9Q1 | HIS4_ECO55 | Escherichia coli (strain 55989 / EAEC) | hisA EC55989_2283 | Detail |
| P62352 | HIS4_BACC1 | Bacillus cereus (strain ATCC 10987 / NRS 248) | hisA BCE_1529 | Detail |