- A: a+b two layers
- X: DNA topoisomerase I domain
- H: DNA topoisomerase I domain
- T: DNA topoisomerase I domain
- F: Top1B_N_bact
Structure of domain e3m4aA7
Domains in the same protein:
| e3m4aA1 | A:80-233 | HTH | HTH | DNA breaking-rejoining enzymes |
| e3m4aA7 | A:2-15,A:40-84 | DNA topoisomerase I domain | DNA topoisomerase I domain | DNA topoisomerase I domain |
| e3m4aA6 | A:234-338 | HTH | HTH | DNA breaking-rejoining enzymes |
Domains in the same PDB:
| e3m4aA1 | A:80-233 | HTH | HTH | DNA breaking-rejoining enzymes |
| e3m4aA7 | A:2-15,A:40-84 | DNA topoisomerase I domain | DNA topoisomerase I domain | DNA topoisomerase I domain |
| e3m4aA6 | A:234-338 | HTH | HTH | DNA breaking-rejoining enzymes |