Homo sapiens
| 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 | SPTB2_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–108； UniProt 173–280 |
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 | 1aa2 |
| Deposition date deposition_date | 1997-01-21 |
| Structure title title | CALPONIN HOMOLOGY (CH) DOMAIN FROM HUMAN BETA-SPECTRIN |
| Keywords keywords | SPECTRIN, CYTOSKELETON, F-ACTIN CROSS-LINKING; CYTOSKELETON |
| 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） | 14.17 Å |
| Rg (electron density) | 12.68 Å |
| Total Rg | 14.14 Å |
| Atom count | 887 |
| Residues | 108 |
| Excluded volume | 15786 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d1aa2a_ |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.40 — CH domain-like |
| Superfamily Superfamily superfamily | a.40.1 — Calponin-homology domain, CH-domain |
| Family Family family | a.40.1.1 — Calponin-homology domain, CH-domain |
| Domain ID domain_id | 1aa2A00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 418 — Actin-binding Protein, T-fimbrin; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Calponin-like domain |