{
  "annotation_id": "2831f367-31dc-4169-aca1-b091ce79153a",
  "date_created": "2026-03-02T18:00:32.821000Z",
  "date_modified": "2026-03-02T18:00:32.821000Z",
  "file_hash": "6a1b4a42d71afb70ddf8e1a68d77a8ae62483a4de2cc899b5d6c8ec4fbd785d6",
  "private": false,
  "record": {
    "abstract": "Various symmetries connected with purine-pyrimidine content of DNA sequences\nare studied in terms of the intruduced determinative degree, a new\ncharacteristics of nucleotide which is connected with codon usage. A\nnumerological explanation of CG pressure is proposed. A classification of DNA\nsequences is given. Calculations with real sequences show that\npurine-pyrimidine symmetry increases with growing of organization. A new small\nparameter which characterizes the purine-pyrimidine symmetry breaking is\nproposed for the DNA theory.",
    "arxiv_id": "physics/0008231",
    "authors": [
      "Diana Duplij",
      "Steven Duplij"
    ],
    "categories": [
      "physics.bio-ph",
      "math-ph",
      "math.MP",
      "q-bio.GN"
    ],
    "title": "Purine-pyrimidine symmetry, determinative degree and DNA",
    "url": "https://arxiv.org/abs/physics/0008231"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62be5730-b601-4947-80d1-b2a35fb22f9d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}