| ID: 945862 | DNA topoisomerase 1 [Escherichia coli str. K-12 substr. MG1655] | NC_000913.3 (1331048..1333645) | b1274, ECK1268, supX |
| ID: 885608 | DNA topoisomerase I [Mycobacterium tuberculosis H37Rv] | NC_000962.3 (4084453..4087257, complement) | Rv3646c |
| ID: 66609093 | type I DNA topoisomerase [Mycoplasmoides pneumoniae] | | EXC43_RS02490, NCTC10119_00504 |
| ID: 9961891 | DNA topoisomerase I [Methanothermus fervidus DSM 2088] | NC_014658.1 (174933..177050, complement) | MFER_RS00920, Mfer_0178 |
| ID: 9703916 | DNA topoisomerase I [Methanothermobacter marburgensis str. Marburg] | NC_014408.1 (209427..211562, complement) | MTBMA_RS01035, MTBMA_c02100 |
| ID: 78817345 | DNA topoisomerase I [Methanobrevibacter smithii ATCC 35061] | | PT320_RS03595 |
| ID: 10669367 | DNA topoisomerase I [Methanobacterium paludis] | NC_015574.1 (1942224..1944587, complement) | MSWAN_RS09160, MSWAN_1857 |
| ID: 10276978 | DNA topoisomerase I [Methanobacterium lacus] | NC_015216.1 (521181..523508) | METBO_RS02730, Metbo_0533 |
| ID: 8770031 | DNA topoisomerase I [Methanobrevibacter ruminantium M1] | NC_013790.1 (557952..560177) | MRU_RS01990, mru_0390 |
| ID: 5216104 | DNA topoisomerase I [Methanobrevibacter smithii ATCC 35061] | NC_009515.1 (686051..688201, complement) | MSM_RS03580, Msm_0717 |
| ID: 77398992 | DNA topoisomerase I [Methanothermobacter marburgensis] | | ISG34_RS01040, ISG34_01040 |
| ID: 76978123 | type I DNA topoisomerase [Bacillus inaquosorum] | | M1M80_RS08880, M1M80_08880 |
| ID: 61828749 | type I DNA topoisomerase [Pseudomonas synxantha] | | C4K01_RS04450, C4K01_0892 |
| ID: 24854726 | DNA topoisomerase I [Methanothermobacter sp. CaT2] | | MTCT_RS07560, MTCT_1483 |
| ID: 1470709 | DNA topoisomerase I [Methanothermobacter thermautotrophicus str. Delta H] | NC_000916.1 (1488665..1490800, complement) | MTH_RS07780, MTH1624, MTH_1624 |
| ID: 77404020 | DNA topoisomerase I [Methanothermobacter thermautotrophicus] | | ISG36_RS07925, ISG36_07840 |
| ID: 77402145 | DNA topoisomerase I [Methanothermobacter thermautotrophicus] | | ISG35_RS07860, ISG35_07785 |
| ID: 77258177 | type I DNA topoisomerase [Marinobacter salarius] | | MARSALSMR5_RS21105, MARSALSMR5_04284 |
| ID: 75105770 | DNA topoisomerase I [Methanothermobacter wolfeii] | | N5910_RS00920, N5910_00920 |
| ID: 69721249 | type I DNA topoisomerase [Vibrio cholerae] | | F0316_RS14020, F0316_14025 |