| E | DNA_pol_B_exo1_2nd | e7uy7E3 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: DNA_pol_B_exo1_2nd | ECOD (1.6) |
| E | DNA_pol_B_2nd | e7uy7E5 | A: alpha bundles | X: thumb domain in bacteriophage RB69-like DNA polymerase I (From Topology) | H: thumb domain in bacteriophage RB69-like DNA polymerase I (From Topology) | T: thumb domain in bacteriophage RB69-like DNA polymerase I | F: DNA_pol_B_2nd | ECOD (1.6) |
| E | DNA_pol_B_1st_1 | e7uy7E1 | A: a+b two layers | X: Alpha-beta plaits | H: Adenylyl and guanylyl cyclase catalytic domain-like | T: Adenylyl and guanylyl cyclase catalytic domain-like | F: DNA_pol_B_1st_1 | ECOD (1.6) |
| E | DNA_pol_B_exo1_1st_1 | e7uy7E4 | A: a+b two layers | X: Alpha-beta plaits | H: Family B DNA polymerase insertion domain (From Topology) | T: Family B DNA polymerase insertion domain | F: DNA_pol_B_exo1_1st_1 | ECOD (1.6) |
| E | DNA_pol_B_exo1_3rd | e7uy7E2 | A: mixed a+b and a/b | X: Ribonuclease H-like | H: Ribonuclease H-like (From Topology) | T: Ribonuclease H-like | F: DNA_pol_B_exo1_3rd | ECOD (1.6) |
| C | EUF07547 | e7uy7C1 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: EUF07547 | ECOD (1.6) |
| B | EUF07546 | e7uy7B1 | A: beta barrels | X: OB-fold | H: Nucleic acid-binding proteins (From Topology) | T: Nucleic acid-binding proteins | F: EUF07546 | ECOD (1.6) |
| B | EUF07897 | e7uy7B2 | A: alpha arrays | X: HTH | H: HTH | T: winged | F: EUF07897 | ECOD (1.6) |
| B | EUF07916 | e7uy7B3 | A: alpha arrays | X: HTH | H: HTH | T: winged | F: EUF07916 | ECOD (1.6) |