OrganismNot specified
| Assembly | Physical composition | Protein state | Molecular copy count | Associated components | Data consistency |
|---|---|---|---|---|---|
| 1 | Protein monomer | Monomer | Protein 1 | (4S)-2-METHYL-2,4-PENTANEDIOL × 1 water × 1 | Consistent with protein count |
| UniProt name | CO3_HUMAN |
| Isoform | — |
| PDB entities | 1 |
| Chains and sequence ranges | Author chain A； PDBConstruct 1–77； UniProt 672–748 |
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 | 4i6o |
| Deposition date deposition_date | 2012-11-29 |
| Structure title title | Crystal structure of chemically synthesized human anaphylatoxin C3a |
| Keywords keywords | ;disulfide-rich, alpha-helical bundle, drumstick, complement system, third component of complement (C3), local inflammatory process mediator, smooth muscle contraction induction, vascular permeability increase, mast cell histamine release, C3a receptor, GPCR, extracellular, blood plasma, IMMUNE SYSTEM ;; 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） | 14.48 Å |
| Rg (electron density) | 14.09 Å |
| Total Rg | 14.96 Å |
| Atom count | 565 |
| Residues | 68 |
| Excluded volume | 10033 ų |
| Maximum q | 0.500 Å⁻¹ |
| Domain ID domain_id | 4i6oA00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 20 — Up-down Bundle |
| Topology topology | 91 — Influenza Virus Matrix Protein; Chain A, domain 1 |
| Homologous superfamily homologous superfamily | 20 — Anaphylotoxins (complement system) |