OrganismNot specified
| 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 | SFAS2_STRFR |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–191； UniProt 1–191 |
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 | 2sfa |
| Deposition date deposition_date | 1994-04-25 |
| Structure title title | SERINE PROTEINASE FROM STREPTOMYCES FRADIAE ATCC 14544 |
| Keywords keywords | HYDROLASE, SERINE PROTEASE; HYDROLASE |
| 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） | 16.04 Å |
| Rg (electron density) | 14.82 Å |
| Total Rg | 15.87 Å |
| Atom count | 1337 |
| Residues | 191 |
| Excluded volume | 23188 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d2sfaa_ |
| Class class | b — All beta proteins |
| Fold Fold fold | b.47 — Trypsin-like serine proteases |
| Superfamily Superfamily superfamily | b.47.1 — Trypsin-like serine proteases |
| Family Family family | b.47.1.1 — Prokaryotic proteases |
| Domain ID domain_id | 2sfaA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 40 — Beta Barrel |
| Topology topology | 10 — Thrombin, subunit H |
| Homologous superfamily homologous superfamily | 10 — Trypsin-like serine proteases |
| Domain ID domain_id | 2sfaA02 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 40 — Beta Barrel |
| Topology topology | 10 — Thrombin, subunit H |
| Homologous superfamily homologous superfamily | 10 — Trypsin-like serine proteases |