{
  "created": "2026-11-07",
  "preparation": {
    "blender": "5.2.3 LTS",
    "molecular_nodes": "520.2.0",
    "three_js": "0.187.0"
  },
  "method": "Evaluated Blender geometry exported as glTF 2.0. Source atom positions unchanged; standard Z-up to Y-up axis conversion only. No dynamics or invented atoms. Each view is centred and uniformly scaled for display; views have independent scales.",
  "validation": "Source atom positions and every exported mesh vertex checked. Full 24 inter-residue backbone connections retained for 2JSL.",
  "structures": [
    {
      "view": "context",
      "representation": "schematic",
      "file": "context-shared-v3.glb",
      "bytes": 2606780,
      "sha256": "c2444c130fee53f3565a7de8618862c2e37051019a20111fb4858734c0b6ffd3",
      "components": [
        "chromosome",
        "ends",
        "ends",
        "chromosome",
        "ends",
        "ends"
      ],
      "source": "Same evaluated chromosome geometry and base material values as the hero animation. Original procedural surface normal relief baked to 1024px normal textures. Restored chromosome/ends component metadata. Lighting/viewpoint differ; surface stripes are illustrative relief, not experimental chromosome bands or measured molecular structure."
    },
    {
      "view": "g4",
      "representation": "experimental structure",
      "pdb": "2JSL",
      "model": 1,
      "source_sha256": "fda851442d0bd7b0d34bd1bf01d6c50658feefb88b09b93729a1f612552df2d5",
      "atoms": 811,
      "max_atom_coordinate_error": 0.0,
      "angstrom_per_blender_unit": 10.0,
      "chains": {
        "A": 811
      },
      "backbone_connections": 24,
      "file": "g4-v1.glb",
      "bytes": 4273368,
      "sha256": "3b3dc365fc890904b7f157285bb17a05dec39ad221e36d0deb52ea3107b2ce52",
      "components": [
        "guanine",
        "backbone"
      ],
      "vertices": 123264,
      "faces": 193380
    },
    {
      "view": "telomerase",
      "representation": "experimental structure",
      "pdb": "7BG9",
      "model": 1,
      "source_sha256": "1b330354b7772a3ffc97d70be58d2e7dacfb9a0060ce11de8080cb11978d618e",
      "atoms": 14233,
      "max_atom_coordinate_error": 0.0,
      "angstrom_per_blender_unit": 10.0,
      "chains": {
        "M": 699,
        "L": 643,
        "A": 7333,
        "N": 127,
        "B": 5431
      },
      "dna_substrate_chain_N_sequence_5_to_3": "TTTTTTTTTTTTTTAGGG",
      "file": "telomerase-v1.glb",
      "bytes": 6293872,
      "sha256": "b32d62e41c1154cfa2b642063045d3d208490491f2bcda9e8dfebca5950ca41f",
      "components": [
        "dna",
        "histones",
        "rna",
        "tert"
      ],
      "vertices": 147758,
      "faces": 163224
    }
  ],
  "references": [
    "https://www.rcsb.org/structure/2JSL",
    "https://doi.org/10.1093/nar/gkm706",
    "https://www.rcsb.org/structure/7BG9",
    "https://doi.org/10.1038/s41586-021-03415-4",
    "https://doi.org/10.1016/0092-8674(89)90035-4",
    "https://doi.org/10.1146/annurev-genet-032918-021921",
    "https://doi.org/10.1016/j.mehy.2019.109406"
  ],
  "delivery": "Models are transferred with lossless gzip when browser decompression is supported; raw GLB is used otherwise.",
  "preview_animation": {
    "purpose": "Decorative preview-loop for the telomerase structural-model card on the MSCA impact page.",
    "method": "A fixed-camera turntable render of the deposited 7BG9-derived telomerase catalytic-core model. The complete model rotates uniformly through one 360-degree turn over 8 seconds; first and last frames align for looping. No molecular dynamics, conformational changes, catalysis, docking or added atoms are depicted.",
    "encoding": "H.264 MP4, 24 frames per second; desktop 960x540 and mobile 480x270. A matching WebP still is used as the poster and fallback.",
    "files": [
      "telomerase-turntable-v1-desktop.mp4",
      "telomerase-turntable-v1-mobile.mp4",
      "telomerase-preview-v1.webp"
    ]
  },
  "chromosome_representation": {
    "state": "Condensed replicated chromosome: two sister chromatids, each with two ends; four telomere locations. Unreplicated linear chromosome: two ends.",
    "markers": "Gold terminal regions denote location only, not molecular structure or telomere length. Hero and interactive schematic both show four.",
    "verification": "Current production telomere film decoded frame inspected; each of the two exported ends meshes spans opposite poles of its chromatid. Interactive chromosome/ends metadata retained.",
    "reference": "https://www.genome.gov/genetics-glossary/Chromatid"
  }
}