| P19821 | n/a | 3sv3 | 5SI | A | 833 | e3sv3A1 | 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 | 3sv3 | 5SI | A | 833 | e3sv3A2 | 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 | 3sv3 | 5SI | A | 833 | e3sv3A3 | Alpha-beta plaits | Adenylyl and guanylyl cyclase catalytic domain-like | Adenylyl and guanylyl cyclase catalytic domain-like | DNA_pol_A |