Icosahedral capsid of poliovirus, assembled from 60 copies of each of its four coat proteins.

Scientifically accurate model built directly from the experimental atomic coordinates of Protein Data Bank entry 2PLV (X-ray crystallography, 2.88 angstrom resolution), biological assembly 1. Source organism: Human poliovirus 1. Only atoms that were resolved in the experiment are represented; nothing has been added or invented.

MODEL
- Molecular surface of every chain as a separate, named object (240 chains, 4 distinct components)
- Bound ligands, cofactors and metal ions as separate ball-and-stick objects (SPH x60; PDB component codes)
- 278,160 polygons, 300,480 vertices; all quads
- All surface meshes closed and manifold (no holes)
- Identical subunits share mesh data (instances)
- One Principled BSDF material per component; no textures needed
- 1 unit = 1 nanometer; centred at the origin; objects grouped under one parent

FORMATS
- Blender 4.0 (.blend), native, with studio lighting and camera (Cycles)
- FBX (.fbx)
- OBJ (.obj + .mtl)
- glTF 2.0 binary (.glb)
- USD (.usdc)

Structure reference: PDB 2PLV; Filman et al., EMBO J., 1989. PDB structure data are in the public domain (CC0 1.0).