| Q9UYS8 | TOP1_PYRAB | Pyrococcus abyssi (strain GE5 / Orsay) | topA PYRAB14290 PAB1430 | Detail |
| Q4UM42 | TOP1_RICFE | Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) (Rickettsia azadi) | topA RF_0530 | Detail |
| Q92IH1 | TOP1_RICCN | Rickettsia conorii (strain ATCC VR-613 / Malish 7) | topA RC0449 | Detail |
| Q9KQF5 | TOP3_VIBCH | Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961) | topB VC_2043 | Detail |
| Q1RIM1 | TOP1_RICBR | Rickettsia bellii (strain RML369-C) | topA RBE_0712 | Detail |
| P13099 | TOP3_YEAST | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | TOP3 EDR1 YLR234W L8083.3 | Detail |
| P30181 | TOP1A_ARATH | Arabidopsis thaliana (Mouse-ear cress) | TOP1A FAS5 MGO1 TOP1 TOP1ALPHA At5g55300 MTE17.1 | Detail |
| Q99UM1 | TOP1_STAAM | Staphylococcus aureus (strain Mu50 / ATCC 700699) | topA SAV1250 | Detail |
| P68697 | TOP1_VACCC | Vaccinia virus (strain Copenhagen) (VACV) | TOP1 H6R | Detail |
| A9Q1D5 | TOP1M_PANTR | Pan troglodytes (Chimpanzee) | TOP1MT | Detail |