RNA-dependent RNA polymerase of SARS-CoV-2 (nsp12 with nsp7 and nsp8) copying RNA, with the antiviral drug remdesivir incorporated into the growing strand.

Scientifically accurate model built directly from the experimental atomic coordinates of Protein Data Bank entry 7BV2 (cryo-electron microscopy, 2.50 angstrom resolution), biological assembly 1. Source organism: Severe acute respiratory syndrome coronavirus 2. 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 (5 chains, 5 distinct components)
- Bound ligands, cofactors and metal ions as separate ball-and-stick objects (ZN x2, POP, MG x2, F86; PDB component codes)
- 94,324 polygons, 95,492 vertices; all quads
- Every surface mesh is closed and manifold (no holes, no loose or overlapping vertices)
- One material per component (Principled BSDF); colours are easy to change. No textures needed
- Scale: 1 unit = 1 nanometer. Model centred at the origin, transforms clean, objects grouped under one parent

FORMATS
- Blender 4.0 (.blend), native, with the studio lighting and camera used for the previews (Cycles)
- FBX (.fbx)
- OBJ (.obj + .mtl)
- glTF 2.0 binary (.glb)
- USD (.usdc)
- STL (.stl), geometry only

Preview images were rendered in Blender Cycles. The wireframe image shows the actual mesh.

Structure reference: PDB 7BV2; Yin et al., Science, 2020 (doi:10.1126/science.abc1560). PDB structure data are in the public domain (CC0 1.0).