Escherichia coli
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | beta-D-ribopyranose × 1 water × 1 | Consistent with protein count |
| UniProt name | RBSB_ECOLI |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–271； UniProt 26–296 |
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 | 1drk |
| Deposition date deposition_date | 1994-09-23 |
| Structure title title | PROBING PROTEIN-PROTEIN INTERACTIONS: THE RIBOSE-BINDING PROTEIN IN BACTERIAL TRANSPORT AND CHEMOTAXIS |
| Keywords keywords | BINDING PROTEIN; BINDING PROTEIN |
| 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） | 19.91 Å |
| Rg (electron density) | 19.20 Å |
| Total Rg | 20.13 Å |
| Atom count | 2486 |
| Residues | 271 |
| Excluded volume | 35917 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1drka_ |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.93 — Periplasmic binding protein-like I |
| Superfamily Superfamily superfamily | c.93.1 — Periplasmic binding protein-like I |
| Family Family family | c.93.1.1 — L-arabinose binding protein-like |
| Domain ID domain_id | 1drkA01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 50 — Rossmann fold |
| Homologous superfamily homologous superfamily | 2300 — Response regulator |
| Domain ID domain_id | 1drkA02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 50 — Rossmann fold |
| Homologous superfamily homologous superfamily | 2300 — Response regulator |