Escherichia coli K12
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | MAGNESIUM ION × 1 water × 1 | Consistent with protein count |
| UniProt name | RECA_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–352； UniProt 2–353 |
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 | 4twz |
| Deposition date deposition_date | 2014-07-02 |
| Structure title title | Crystal Structure Analysis of E Coli. RecA Protein |
| Keywords keywords | HOMOLOGOUS RECOMBINATION, DNA BINDING, RECOMBINATION; RECOMBINATION |
| 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） | 21.66 Å |
| Rg (electron density) | 20.53 Å |
| Total Rg | 21.69 Å |
| Atom count | 2374 |
| Residues | 321 |
| Excluded volume | 43129 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d4twza1 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.37 — P-loop containing nucleoside triphosphate hydrolases |
| Superfamily Superfamily superfamily | c.37.1 — P-loop containing nucleoside triphosphate hydrolases |
| Family Family family | c.37.1.11 — RecA protein-like (ATPase-domain) |
| Domain ID domain_id | d4twza2 |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.48 — Anti-LPS factor/recA domain |
| Superfamily Superfamily superfamily | d.48.1 — RecA protein, C-terminal domain |
| Family Family family | d.48.1.1 — RecA protein, C-terminal domain |
| Domain ID domain_id | 4twzA01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 50 — Rossmann fold |
| Homologous superfamily homologous superfamily | 300 — P-loop containing nucleotide triphosphate hydrolases |
| Domain ID domain_id | 4twzA02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 30 — 2-Layer Sandwich |
| Topology topology | 250 — Rec A Protein; domain 2 |
| Homologous superfamily homologous superfamily | 10 — RecA protein, C-terminal domain |