| Q7T6X9 | TOP1E_MIMIV | Acanthamoeba polyphaga mimivirus (APMV) | TOP1E MIMI_R194 | Detail |
| Q9KA23 | TOP1_BACHD | Bacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125) | topA BH2467 | Detail |
| A0A0L0P4F8 | TOP1_CANAR | Candida auris (Yeast) | TOP1 QG37_01781 | Detail |
| Q9ZDK2 | TOP1_RICPR | Rickettsia prowazekii (strain Madrid E) | topA RP326 | Detail |
| Q9HM08 | TOP1_THEAC | Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165) | topA Ta0063 | Detail |
| Q2FZ32 | TOP1_STAA8 | Staphylococcus aureus (strain NCTC 8325) | topA SAOUHSC_01222 | Detail |
| P11387 | TOP1_HUMAN | Homo sapiens (Human) | TOP1 | Detail |
| P46799 | TOP1_THEMA | Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099) | topA TM_0258 | Detail |
| Q63GK5 | TOP3_BACCZ | Bacillus cereus (strain ZK / E33L) | topB BCE33L0347 | Detail |
| Q81IH1 | TOP3_BACCR | Bacillus cereus (strain ATCC 14579 / DSM 31 / JCM 2152 / NBRC 15305 / NCIMB 9373 / NRRL B-3711) | topB BC_0417 | Detail |