Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein heterocomplex | Heteromer | Protein 2 | Colicin D immunity protein × 1 （P11899） water × 2 | Consistent with protein count |
| UniProt name | CEAD_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–103； UniProt 595–697 |
Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein heterocomplex | Heteromer | Protein 2 | Colicin D × 1 （P17998） water × 2 | Consistent with protein count |
| UniProt name | IMMD_ECOLI |
| Isoform | — |
| PDB entities | 2 |
| Chains and sequence ranges | Author chain B； PDBConstruct 1–86； UniProt 2–87 |
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 | 1tfo |
| Deposition date deposition_date | 2004-05-27 |
| Structure title title | Ribonuclease from Escherichia coli complexed with its inhibitor protein |
| Keywords keywords | PROTEIN-PROTEIN COMPLEX, TOXIN-TOXIN INHIBITOR COMPLEX; TOXIN/TOXIN INHIBITOR |
| 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） | 17.19 Å |
| Rg (electron density) | 16.05 Å |
| Total Rg | 17.16 Å |
| Atom count | 1533 |
| Residues | 189 |
| Excluded volume | 27256 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1tfoa_ |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.243 — Colicin D/E5 nuclease domain |
| Superfamily Superfamily superfamily | d.243.1 — Colicin D/E5 nuclease domain |
| Family Family family | d.243.1.1 — Colicin D nuclease domain |
| Domain ID domain_id | d1tfob2 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.24 — Four-helical up-and-down bundle |
| Superfamily Superfamily superfamily | a.24.20 — Colicin D immunity protein |
| Family Family family | a.24.20.1 — Colicin D immunity protein |
| Domain ID domain_id | d1tfob3 |
| Class class | l — Artifacts |
| Fold Fold fold | l.1 — Tags |
| Superfamily Superfamily superfamily | l.1.1 — Tags |
| Family Family family | l.1.1.1 — Tags |
| Domain ID domain_id | 1tfoA00 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 10 — Roll |
| Topology topology | 450 — Nuclear Transport Factor 2; Chain: A, |
| Homologous superfamily homologous superfamily | 200 — |
| Domain ID domain_id | 1tfoB00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 20 — Up-down Bundle |
| Topology topology | 120 — Four Helix Bundle (Hemerythrin (Met), subunit A) |
| Homologous superfamily homologous superfamily | 650 — Colicin D |