| D [auth CCC] | DNA_topoisoIV_1st | e8bp2CCC1 | A: alpha arrays | X: HTH | H: HTH | T: winged | F: DNA_topoisoIV_1st | ECOD (1.6) |
| D [auth CCC] | DNA_topoisoIV_3rd | e8bp2CCC2 | A: alpha bundles | X: alpha-helical domain in type II DNA topoisomerase (From Topology) | H: alpha-helical domain in type II DNA topoisomerase (From Topology) | T: alpha-helical domain in type II DNA topoisomerase | F: DNA_topoisoIV_3rd | ECOD (1.6) |
| D [auth CCC] | DNA_topoisoIV_2nd_1 | e8bp2CCC3 | A: a+b two layers | X: a+b domain in type II DNA topoisomerase (From Topology) | H: a+b domain in type II DNA topoisomerase (From Topology) | T: a+b domain in type II DNA topoisomerase | F: DNA_topoisoIV_2nd_1 | ECOD (1.6) |
| B [auth AAA] | DNA_topoisoIV_1st | e8bp2AAA3 | A: alpha arrays | X: HTH | H: HTH | T: winged | F: DNA_topoisoIV_1st | ECOD (1.6) |
| B [auth AAA] | DNA_topoisoIV_3rd | e8bp2AAA2 | A: alpha bundles | X: alpha-helical domain in type II DNA topoisomerase (From Topology) | H: alpha-helical domain in type II DNA topoisomerase (From Topology) | T: alpha-helical domain in type II DNA topoisomerase | F: DNA_topoisoIV_3rd | ECOD (1.6) |
| B [auth AAA] | DNA_topoisoIV_2nd_1 | e8bp2AAA1 | A: a+b two layers | X: a+b domain in type II DNA topoisomerase (From Topology) | H: a+b domain in type II DNA topoisomerase (From Topology) | T: a+b domain in type II DNA topoisomerase | F: DNA_topoisoIV_2nd_1 | ECOD (1.6) |
| C [auth DDD] | DNA_gyraseB_C | e8bp2DDD1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: HAD domain-related | T: Toprim domain | F: DNA_gyraseB_C | ECOD (1.6) |
| A [auth BBB] | DNA_gyraseB_C | e8bp2BBB1 | A: a/b three-layered sandwiches | X: HAD domain-like | H: HAD domain-related | T: Toprim domain | F: DNA_gyraseB_C | ECOD (1.6) |