Homo sapiens
| 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 | CO2_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–223； UniProt 21–243 |
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 | 3erb |
| Deposition date deposition_date | 2008-10-01 |
| Structure title title | The Crystal Structure of C2b, a Fragment of Complement Component C2 produced during C3-convertase Formation |
| Keywords keywords | ;Complement component C2b, C3/C5 convertase, complement control protein (CCP), short consensus repeat(SCR), Sushi domain, human complement system, complement second component C2, Complement pathway, Disease mutation, Glycoprotein, Hydrolase, Immune response, Innate immunity, Polymorphism, Protease, Secreted, Serine protease, Sushi ;; 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） | 21.33 Å |
| Rg (electron density) | 20.90 Å |
| Total Rg | 21.46 Å |
| Atom count | 1410 |
| Residues | 188 |
| Excluded volume | 24596 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | d3erba1 |
| Class class | g — Small proteins |
| Fold Fold fold | g.18 — Complement control module/SCR domain |
| Superfamily Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| Family Family family | g.18.1.0 — automated matches |
| Domain ID domain_id | d3erba2 |
| Class class | g — Small proteins |
| Fold Fold fold | g.18 — Complement control module/SCR domain |
| Superfamily Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| Family Family family | g.18.1.0 — automated matches |
| Domain ID domain_id | d3erba3 |
| Class class | g — Small proteins |
| Fold Fold fold | g.18 — Complement control module/SCR domain |
| Superfamily Superfamily superfamily | g.18.1 — Complement control module/SCR domain |
| Family Family family | g.18.1.0 — automated matches |
| Domain ID domain_id | 3erbA01 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 10 — Ribbon |
| Topology topology | 70 — Complement Module; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Complement Module, domain 1 |
| Domain ID domain_id | 3erbA02 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 10 — Ribbon |
| Topology topology | 70 — Complement Module; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Complement Module, domain 1 |
| Domain ID domain_id | 3erbA03 |
| Class class | 2 — Mainly Beta |
| Architecture architecture | 10 — Ribbon |
| Topology topology | 70 — Complement Module; domain 1 |
| Homologous superfamily homologous superfamily | 10 — Complement Module, domain 1 |