Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 4 | water × 4 | Consistent with protein count |
| UniProt name | RUVA_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–203； UniProt 1–203 |
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 | 1cuk |
| Deposition date deposition_date | 1996-08-28 |
| Structure title title | ESCHERICHIA COLI RUVA PROTEIN AT PH 4.9 AND ROOM TEMPERATURE |
| Keywords keywords | DNA REPAIR, SOS RESPONSE, DNA-BINDING, DNA RECOMBINATION, HELICASE; HELICASE |
| 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） | 30.05 Å |
| Rg (electron density) | 28.81 Å |
| Total Rg | 29.61 Å |
| Atom count | 5508 |
| Residues | 760 |
| Excluded volume | 99481 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1cuka1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.5 — RuvA C-terminal domain-like |
| Superfamily Superfamily superfamily | a.5.1 — DNA helicase RuvA subunit, C-terminal domain |
| Family Family family | a.5.1.1 — DNA helicase RuvA subunit, C-terminal domain |
| Domain ID domain_id | d1cuka2 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.60 — SAM domain-like |
| Superfamily Superfamily superfamily | a.60.2 — RuvA domain 2-like |
| Family Family family | a.60.2.1 — DNA helicase RuvA subunit, middle domain |
| Domain ID domain_id | d1cuka3 |
| Class class | b — All beta proteins |
| Fold Fold fold | b.40 — OB-fold |
| Superfamily Superfamily superfamily | b.40.4 — Nucleic acid-binding proteins |
| Family Family family | b.40.4.2 — DNA helicase RuvA subunit, N-terminal domain |
| Domain ID domain_id | 1cukA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 40 — Beta Barrel |
| Topology topology | 50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P) |
| Homologous superfamily homologous superfamily | 140 — Nucleic acid-binding proteins |
| Domain ID domain_id | 1cukA02 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 150 — DNA polymerase; domain 1 |
| Homologous superfamily homologous superfamily | 20 — 5' to 3' exonuclease, C-terminal subdomain |
| Domain ID domain_id | 1cukA03 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 8 — Helicase, Ruva Protein; domain 3 |
| Homologous superfamily homologous superfamily | 10 — Ubiquitin-associated (UBA) domain |