Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 6 | FE (III) ION × 6 water × 6 | Consistent with protein count |
| UniProt name | CODA_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–426； UniProt 1–426 |
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 | 1k6w |
| Deposition date deposition_date | 2001-10-17 |
| Structure title title | The Structure of Escherichia coli Cytosine Deaminase |
| Keywords keywords | cytosine deaminase, alpha-beta barrel, hexamer, domain swap, HYDROLASE; HYDROLASE |
| 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） | 41.47 Å |
| Rg (electron density) | 40.99 Å |
| Total Rg | 41.39 Å |
| Atom count | 19956 |
| Residues | 2538 |
| Excluded volume | 353160 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1k6wa1 |
| Class class | b — All beta proteins |
| Fold Fold fold | b.92 — Composite domain of metallo-dependent hydrolases |
| Superfamily Superfamily superfamily | b.92.1 — Composite domain of metallo-dependent hydrolases |
| Family Family family | b.92.1.2 — Cytosine deaminase |
| Domain ID domain_id | d1k6wa2 |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.1 — TIM beta/alpha-barrel |
| Superfamily Superfamily superfamily | c.1.9 — Metallo-dependent hydrolases |
| Family Family family | c.1.9.5 — Cytosine deaminase catalytic domain |
| Domain ID domain_id | 1k6wA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 30 — Roll |
| Topology topology | 40 — Urease, subunit C; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Urease, subunit C, domain 1 |
| Domain ID domain_id | 1k6wA02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 20 — Alpha-Beta Barrel |
| Topology topology | 20 — TIM Barrel |
| Homologous superfamily homologous superfamily | 140 — Metal-dependent hydrolases |