Severe acute respiratory syndrome coronavirus 2
| 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 | R1A_SARS2 |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–306； UniProt 3264–3569 |
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 | 6m03 |
| Deposition date deposition_date | 2020-02-19 |
| Structure title title | The crystal structure of COVID-19 main protease in apo form |
| Keywords keywords | Coronavirus, COVID-19, viral protease, BIOSYNTHETIC PROTEIN; BIOSYNTHETIC 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） | 26.34 Å |
| Rg (electron density) | 25.34 Å |
| Total Rg | 26.20 Å |
| Atom count | 4734 |
| Residues | 612 |
| Excluded volume | 84177 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d6m03a_ |
| 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.47.1.4 — Viral cysteine protease of trypsin fold |
| Domain ID domain_id | 6m03A01 |
| 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 | 6m03A02 |
| 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 | 6m03A03 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 1840 — main proteinase (3clpro) structure, domain 3 |
| Homologous superfamily homologous superfamily | 10 — main proteinase (3clpro) structure, domain 3 |