Streptococcus sp. G148
| 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 | SPG1_STRSG |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 2–61； UniProt 293–352 |
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 | 1igd |
| Deposition date deposition_date | 1994-08-05 |
| Structure title title | THE THIRD IGG-BINDING DOMAIN FROM STREPTOCOCCAL PROTEIN G: AN ANALYSIS BY X-RAY CRYSTALLOGRAPHY OF THE STRUCTURE ALONE AND IN A COMPLEX WITH FAB |
| Keywords keywords | IMMUNOGLOBULIN BINDING PROTEIN; IMMUNOGLOBULIN 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） | 12.96 Å |
| Rg (electron density) | 11.79 Å |
| Total Rg | 13.40 Å |
| Atom count | 468 |
| Residues | 61 |
| Excluded volume | 8321 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1igda_ |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.15 — beta-Grasp (ubiquitin-like) |
| Superfamily Superfamily superfamily | d.15.7 — Immunoglobulin-binding domains |
| Family Family family | d.15.7.1 — Immunoglobulin-binding domains |
| Domain ID domain_id | 1igdA00 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 10 — Roll |
| Topology topology | 20 — Ubiquitin-like (UB roll) |
| Homologous superfamily homologous superfamily | 10 — |