HOMO SAPIENS
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein homooligomer | Homooligomer | Protein 2 | water × 2 | Consistent with protein count |
| UniProt name | CTLA4_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain D； PDBConstruct 2–127； UniProt 36–161 |
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 | 2x44 |
| Deposition date deposition_date | 2010-01-28 |
| Structure title title | Structure of a strand-swapped dimeric form of CTLA-4 |
| Keywords keywords | IMMUNE SYSTEM, AMYLOIDOGENIC, SYSTEMIC LUPUS ERYTHEMATOSUS, IMMUNOGLOBULIN DOMAIN, MEMBRANE, GLYCOPROTEIN, TRANSMEMBRANE; IMMUNE SYSTEM |
| 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） | 29.00 Å |
| Rg (electron density) | 28.97 Å |
| Total Rg | 29.16 Å |
| Atom count | 1812 |
| Residues | 242 |
| Excluded volume | 32458 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d2x44d_ |
| 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.1.1.1 — V set domains (antibody variable domain-like) |
| Domain ID domain_id | 2x44D01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 60 — Sandwich |
| Topology topology | 40 — Immunoglobulin-like |
| Homologous superfamily homologous superfamily | 10 — Immunoglobulins |