Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | No other associated polymer | Consistent with protein count |
| UniProt name | PURR_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 2–56； UniProt 1–55 |
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 | 1pru |
| Deposition date deposition_date | 1995-05-08 |
| Structure title title | PURINE REPRESSOR DNA-BINDING DOMAIN DNA BINDING |
| Keywords keywords | PURINE REPRESSOR, DNA-BINDING PROTEIN, DNA BINDING PROTEIN; DNA BINDING PROTEIN |
| Experimental Method method | SOLUTION NMR |
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） | 12.98 Å |
| Rg (electron density) | 11.98 Å |
| Total Rg | 13.48 Å |
| Atom count | 890 |
| Residues | 56 |
| Excluded volume | 7780 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1prua_ |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.35 — lambda repressor-like DNA-binding domains |
| Superfamily Superfamily superfamily | a.35.1 — lambda repressor-like DNA-binding domains |
| Family Family family | a.35.1.5 — GalR/LacI-like bacterial regulator |
| Domain ID domain_id | 1pruA00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 260 — 434 Repressor (Amino-terminal Domain) |
| Homologous superfamily homologous superfamily | 40 — lambda repressor-like DNA-binding domains |