Salmonella typhimurium
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | water × 1 | Consistent with protein count |
| UniProt name | OPPA_SALTY |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–517； UniProt 26–542 |
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 | 1rkm |
| Deposition date deposition_date | 1997-03-25 |
| Structure title title | STRUCTURE OF OPPA |
| Keywords keywords | PEPTIDE TRANSPORT, 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） | 24.80 Å |
| Rg (electron density) | 23.88 Å |
| Total Rg | 24.84 Å |
| Atom count | 4165 |
| Residues | 517 |
| Excluded volume | 73981 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1rkma_ |
| Class class | c — Alpha and beta proteins (a/b) |
| Fold Fold fold | c.94 — Periplasmic binding protein-like II |
| Superfamily Superfamily superfamily | c.94.1 — Periplasmic binding protein-like II |
| Family Family family | c.94.1.1 — Phosphate binding protein-like |
| Domain ID domain_id | 1rkmA01 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 40 — 3-Layer(aba) Sandwich |
| Topology topology | 190 — D-Maltodextrin-Binding Protein; domain 2 |
| Homologous superfamily homologous superfamily | 10 — Periplasmic binding protein-like II |
| Domain ID domain_id | 1rkmA02 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 90 — Alpha-Beta Complex |
| Topology topology | 76 — Dipeptide-binding Protein; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Dipeptide-binding Protein; Domain 1 |
| Domain ID domain_id | 1rkmA03 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 10 — Roll |
| Topology topology | 105 — Dipeptide-binding Protein; domain 3 |
| Homologous superfamily homologous superfamily | 10 — Dipeptide-binding Protein; Domain 3 |