| Q6LYU3 | GUAAB_METMP | Methanococcus maripaludis (strain S2 / LL) | guaAB guaA MMP0894 | Detail |
| Q8U0R8 | GUAAB_PYRFU | Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1) | guaAB PF1516 | Detail |
| Q5HIQ6 | GUAA_STAAC | Staphylococcus aureus (strain COL) | guaA SACOL0461 | Detail |
| Q6GC81 | GUAA_STAAS | Staphylococcus aureus (strain MSSA476) | guaA SAS0367 | Detail |
| C3L508 | GUAA_BACAC | Bacillus anthracis (strain CDC 684 / NRRL 3495) | guaA BAMEG_0314 | Detail |
| Q6MLD2 | GUAA_BDEBA | Bdellovibrio bacteriovorus (strain ATCC 15356 / DSM 50701 / NCIB 9529 / HD100) | guaA Bd2080 | Detail |
| P64298 | GUAA_STRR6 | Streptococcus pneumoniae (strain ATCC BAA-255 / R6) | guaA spr1300 | Detail |
| Q30TH8 | GUAA_SULDN | Sulfurimonas denitrificans (strain ATCC 33889 / DSM 1251) (Thiomicrospira denitrificans (strain ATCC 33889 / DSM 1251)) | guaA Suden_0422 | Detail |
| A9AIP4 | GUAA_BURM1 | Burkholderia multivorans (strain ATCC 17616 / 249) | guaA Bmul_1287 BMULJ_01960 | Detail |
| Q6KZC5 | GUAAA_PICTO | Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828) | guaAA PTO1342 | Detail |