| Q3AUM3 | PYRB_SYNS9 | Synechococcus sp. (strain CC9902) | pyrB Syncc9902_2051 | Detail |
| P74163 | PYRB_SYNY3 | Synechocystis sp. (strain PCC 6803 / Kazusa) | pyrB slr1476 | Detail |
| Q5PAN5 | PYRB_ANAMM | Anaplasma marginale (strain St. Maries) | pyrB AM662 | Detail |
| P77918 | PYRB_PYRAB | Pyrococcus abyssi (strain GE5 / Orsay) | pyrB PYRAB13270 PAB1498 | Detail |
| B6J6M5 | PYRB_COXB1 | Coxiella burnetii (strain CbuK_Q154) (Coxiella burnetii (strain Q154)) | pyrB CbuK_2145 | Detail |
| B6IN31 | PYRB_RHOCS | Rhodospirillum centenum (strain ATCC 51521 / SW) | pyrB RC1_1524 | Detail |
| Q1LJR3 | PYRB_CUPMC | Cupriavidus metallidurans (strain ATCC 43123 / DSM 2839 / NBRC 102507 / CH34) (Ralstonia metallidurans) | pyrB Rmet_2740 | Detail |
| Q6N565 | PYRB_RHOPA | Rhodopseudomonas palustris (strain ATCC BAA-98 / CGA009) | pyrB RPA3117 | Detail |
| Q7M9Y9 | PYRB_WOLSU | Wolinella succinogenes (strain ATCC 29543 / DSM 1740 / LMG 7466 / NCTC 11488 / FDC 602W) (Vibrio succinogenes) | pyrB WS0580 | Detail |
| Q9R9D5 | RFAQ_ECOLX | Escherichia coli | rfaQ waaQ | Detail |