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 | SAP_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 2–79； UniProt 407–484 |
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 | 2r1q |
| Deposition date deposition_date | 2007-08-23 |
| Structure title title | Crystal Structure of Iodinated Human Saposin D in Space Group C2221 |
| Keywords keywords | ;lipid binding protein, saposin, activator protein, sap, Alternative splicing, Disease mutation, Gaucher disease, Glycoprotein, GM2-gangliosidosis, Lipid metabolism, Lysosome, Metachromatic leukodystrophy, Sphingolipid metabolism ;; LIPID 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） | 18.29 Å |
| Rg (electron density) | 17.99 Å |
| Total Rg | 18.59 Å |
| Atom count | 1218 |
| Residues | 154 |
| Excluded volume | 22146 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d2r1qa1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.64 — Saposin-like |
| Superfamily Superfamily superfamily | a.64.1 — Saposin |
| Family Family family | a.64.1.1 — NKL-like |
| Domain ID domain_id | d2r1qa2 |
| 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 | 2r1qA00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 225 — NK-Lysin |
| Homologous superfamily homologous superfamily | 10 — Saposin-like |