Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | water × 1 | Consistent with protein count |
| UniProt name | DPO2_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–783； UniProt 0–782 |
The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.
| Entry ID entry_id | 1q8i |
| Deposition date deposition_date | 2003-08-21 |
| Structure title title | Crystal structure of ESCHERICHIA coli DNA Polymerase II |
| Keywords keywords | ;DNA Polymerase II, Structural Genomics, PSI, Protein Structure Initiative, Midwest Center for Structural Genomics, MCSG, TRANSFERASE ;; TRANSFERASE |
| Experimental Method method | X-RAY DIFFRACTION |
This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
| Rg（Guinier） | 32.26 Å |
| Rg (electron density) | 31.26 Å |
| Total Rg | 31.90 Å |
| Atom count | 5709 |
| Residues | 708 |
| Excluded volume | 101380 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1q8ia1 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.55 — Ribonuclease H-like motif |
| Superfamily Superfamily superfamily | c.55.3 — Ribonuclease H-like |
| Family Family family | c.55.3.5 — DnaQ-like 3'-5' exonuclease |
| Domain ID domain_id | d1q8ia2 |
| Class class | e — Multi-domain proteins (alpha and beta) |
| Fold Fold fold | e.8 — DNA/RNA polymerases |
| Superfamily Superfamily superfamily | e.8.1 — DNA/RNA polymerases |
| Family Family family | e.8.1.1 — DNA polymerase I |
| Domain ID domain_id | 1q8iA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 40 — Beta Barrel |
| Topology topology | 50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| Homologous superfamily homologous superfamily | 590 — DNA polymerase B, N domain, beta-barrel |
| Domain ID domain_id | 1q8iA02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 70 — Alpha-Beta Plaits |
| Homologous superfamily homologous superfamily | 2250 — B family DNA polymerase, N domain, alpha/beta motif |
| Domain ID domain_id | 1q8iA03 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 420 — Nucleotidyltransferase; domain 5 |
| Homologous superfamily homologous superfamily | 10 — Ribonuclease H-like superfamily/Ribonuclease H |
| Domain ID domain_id | 1q8iA04 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 90 — Alpha-Beta Complex |
| Topology topology | 1600 — Palm domain of DNA polymerase |
| Homologous superfamily homologous superfamily | 10 — B family DNA polymerase, palm domain |
| Domain ID domain_id | 1q8iA05 |
| Class class | 6 — Special |
| Architecture architecture | 10 — Helix non-globular |
| Topology topology | 140 — Helix Hairpins |
| Homologous superfamily homologous superfamily | 1130 — |
| Domain ID domain_id | 1q8iA06 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 287 — Helix Hairpins |
| Homologous superfamily homologous superfamily | 690 — B family DNA polymerase, finger domain |