Homo sapiens
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 4 | water × 4 | Consistent with protein count |
| UniProt name | CYTB_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–98； UniProt 1–98 Author chain B； PDBConstruct 1–98； UniProt 1–98 |
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 | 2oct |
| Deposition date deposition_date | 2006-12-21 |
| Structure title title | Stefin B (Cystatin B) tetramer |
| Keywords keywords | stefin, cystatin, amyloid, domain-swapping, hand shaking, proline isomerization, PROTEIN BINDING; PROTEIN BINDING |
| 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） | 25.60 Å |
| Rg (electron density) | 24.73 Å |
| Total Rg | 25.49 Å |
| Atom count | 3100 |
| Residues | 384 |
| Excluded volume | 54678 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d2octa_ |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.17 — Cystatin-like |
| Superfamily Superfamily superfamily | d.17.1 — Cystatin/monellin |
| Family Family family | d.17.1.2 — Cystatins |
| Domain ID domain_id | d2octb_ |
| Class class | d — Alpha and beta proteins (a+b) |
| Fold Fold fold | d.17 — Cystatin-like |
| Superfamily Superfamily superfamily | d.17.1 — Cystatin/monellin |
| Family Family family | d.17.1.2 — Cystatins |
| Domain ID domain_id | 2octA00 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 10 — Roll |
| Topology topology | 450 — Nuclear Transport Factor 2; Chain: A, |
| Homologous superfamily homologous superfamily | 10 — |
| Domain ID domain_id | 2octB00 |
| Class class | 3 — Alpha Beta |
| Architecture architecture | 10 — Roll |
| Topology topology | 450 — Nuclear Transport Factor 2; Chain: A, |
| Homologous superfamily homologous superfamily | 10 — |