| Q1IBP2 | URE3_PSEE4 | Pseudomonas entomophila (strain L48) | ureA PSEEN2094 | Detail |
| B5ZMP5 | URE3_RHILW | Rhizobium leguminosarum bv. trifolii (strain WSM2304) | ureA Rleg2_3056 | Detail |
| Q9RFF5 | URE3_RHOS4 | Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158) | ureA RHOS4_19160 RSP_0309 | Detail |
| B0K272 | YDJC_THEPX | Thermoanaerobacter sp. (strain X514) | Teth514_0263 | Detail |
| O54420 | URE1_ACTPL | Actinobacillus pleuropneumoniae (Haemophilus pleuropneumoniae) | ureC | Detail |
| O27075 | Y994_METTH | Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum) | MTH_994 | Detail |
| Q9RW28 | Y841_DEIRA | Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422) | DR_0841 | Detail |
| Q10166 | YAUB_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | SPAC26A3.11 | Detail |
| Q02896 | YDC1_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | YDC1 YPL087W LPG21W | Detail |
| A6U413 | URE2_STAA2 | Staphylococcus aureus (strain JH1) | ureB SaurJH1_2356 | Detail |