| A2BUR2 | HIS7_PROM5 | Prochlorococcus marinus (strain MIT 9515) | hisB P9515_03141 | Detail |
| Q1GF01 | HIS7_RUEST | Ruegeria sp. (strain TM1040) (Silicibacter sp.) | hisB TM1040_2033 | Detail |
| P56265 | NIFB_KLEOX | Klebsiella oxytoca | nifB | Detail |
| P46044 | NIFB_FRAAL | Frankia alni | nifB | Detail |
| A8LX62 | HIS7_SALAI | Salinispora arenicola (strain CNS-205) | hisB Sare_3420 | Detail |
| A0QX83 | HIS7_MYCS2 | Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) (Mycobacterium smegmatis) | hisB MSMEG_3207 MSMEI_3125 | Detail |
| A1UHK6 | HIS7_MYCSK | Mycobacterium sp. (strain KMS) | hisB Mkms_3120 | Detail |
| A5GWD4 | HIS7_SYNR3 | Synechococcus sp. (strain RCC307) | hisB SynRCC307_2290 | Detail |
| Q0AW39 | HIS7_SYNWW | Syntrophomonas wolfei subsp. wolfei (strain DSM 2245B / Goettingen) | hisB Swol_1767 | Detail |
| B8JDL0 | HIS7_ANAD2 | Anaeromyxobacter dehalogenans (strain 2CP-1 / ATCC BAA-258) | hisB A2cp1_0750 | Detail |