| P19821 | n/a | 3m8r | HXZ | A | 113 | e3m8rA1 | helical bundle in Bacillus stearothermophilus-like DNA polymerase I | helical bundle in Bacillus stearothermophilus-like DNA polymerase I | helical bundle in Bacillus stearothermophilus-like DNA polymerase I | DNA_pol_A |
| P19821 | n/a | 3m8r | HXZ | A | 113 | e3m8rA2 | fingers domain in bacteriophage RB69-like DNA polymerase I | fingers domain in bacteriophage RB69-like DNA polymerase I | fingers domain in bacteriophage RB69-like DNA polymerase I | DNA_pol_A |
| P19821 | n/a | 3m8r | HXZ | A | 113 | e3m8rA3 | Alpha-beta plaits | Adenylyl and guanylyl cyclase catalytic domain-like | Adenylyl and guanylyl cyclase catalytic domain-like | DNA_pol_A |