Homo sapiens
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein heterocomplex | Heteromer | Protein 4 | SINGLE CHAIN FV FRAGMENT × 2 water × 4 | Consistent with protein count |
| UniProt name | CD81_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 3–92； UniProt 112–201 |
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 | 5dfw |
| Deposition date deposition_date | 2015-08-27 |
| Structure title title | CRYSTAL STRUCTURE OF HUMAN CD81 LARGE EXTRACELLULAR LOOP IN COMPLEX WITH SINGLE CHAIN FV FRAGMENT K13 |
| Keywords keywords | HELICAL BUNDLE, ANTIBODY-ANTIGEN COMPLEX, CELL ADHESION; CELL ADHESION |
| 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） | 28.96 Å |
| Rg (electron density) | 28.43 Å |
| Total Rg | 29.16 Å |
| Atom count | 4836 |
| Residues | 624 |
| Excluded volume | 85376 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d5dfwa1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.135 — Tetraspanin |
| Superfamily Superfamily superfamily | a.135.1 — Tetraspanin |
| Family Family family | a.135.1.1 — Tetraspanin |
| Domain ID domain_id | d5dfwa2 |
| Class class | l — Artifacts |
| Fold Fold fold | l.1 — Tags |
| Superfamily Superfamily superfamily | l.1.1 — Tags |
| Family Family family | l.1.1.1 — Tags |
| Domain ID domain_id | d5dfwh1 |
| Class class | b — All beta proteins |
| Fold Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| Superfamily Superfamily superfamily | b.1.1 — Immunoglobulin |
| Family Family family | b.1.1.0 — automated matches |
| Domain ID domain_id | d5dfwh2 |
| Class class | b — All beta proteins |
| Fold Fold fold | b.1 — Immunoglobulin-like beta-sandwich |
| Superfamily Superfamily superfamily | b.1.1 — Immunoglobulin |
| Family Family family | b.1.1.0 — automated matches |
| Domain ID domain_id | 5dfwA00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 1450 — Cd81 Antigen, Extracellular Domain; Chain: A |
| Homologous superfamily homologous superfamily | 10 — Tetraspanin |
| Domain ID domain_id | 5dfwH01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 60 — Sandwich |
| Topology topology | 40 — Immunoglobulin-like |
| Homologous superfamily homologous superfamily | 10 — Immunoglobulins |
| Domain ID domain_id | 5dfwH02 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 60 — Sandwich |
| Topology topology | 40 — Immunoglobulin-like |
| Homologous superfamily homologous superfamily | 10 — Immunoglobulins |