| Q0J0S6 | TOP3B_ORYSJ | Oryza sativa subsp. japonica (Rice) | TOP3B Os09g0500600 LOC_Os09g32450 | Detail |
| Q2FW03 | TOP3_STAA8 | Staphylococcus aureus (strain NCTC 8325) | topB SAOUHSC_02517 | Detail |
| Q5UQB5 | TOP1P_MIMIV | Acanthamoeba polyphaga mimivirus (APMV) | TOP1P MIMI_L221 | Detail |
| Q7YR26 | TOP1_CHLAE | Chlorocebus aethiops (Green monkey) (Cercopithecus aethiops) | TOP1 | Detail |
| Q7A5Y5 | TOP1_STAAN | Staphylococcus aureus (strain N315) | topA SA1093 | Detail |
| O96651 | TOP3B_DROME | Drosophila melanogaster (Fruit fly) | Top3beta TOP3 CG3458 | Detail |
| Q5WAX6 | TOP3_BACSK | Bacillus clausii (strain KSM-K16) | topB ABC3953 | Detail |
| O60126 | TOP3_SCHPO | Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) | top3 SPBC16G5.12c | Detail |
| Q65N90 | TOP3_BACLD | Bacillus licheniformis (strain ATCC 14580 / DSM 13 / JCM 2505 / NBRC 12200 / NCIMB 9375 / NRRL NRS-1264 / Gibson 46) | topB BLi00518 BL02823 | Detail |
| Q8Z6F5 | TOP3_SALTI | Salmonella typhi | topB top3 STY1816 t1177 | Detail |