{
  "annotation_id": "4fe27b72-3366-4bfb-955d-a890d55232a1",
  "date_created": "2026-03-02T18:01:35.440000Z",
  "date_modified": "2026-03-02T18:01:35.440000Z",
  "file_hash": "d36e1e882d44d1ea07814e18cde28234b4d7d1580e22894f82758191e056d99a",
  "private": false,
  "record": {
    "abstract": "We investigate the dynamics of an idealized model of microtubule growth that\nevolves by: (i) attachment of guanosine triphosphate (GTP) at rate lambda, (ii)\nconversion of GTP to guanosine diphosphate (GDP) at rate 1, and (iii)\ndetachment of GDP at rate mu. As a function of these rates, a microtubule can\ngrow steadily or its length can fluctuate wildly. For mu=0, we find the exact\ntubule and GTP cap length distributions, and power-law length distributions of\nGTP and GDP islands. For mu=infinity, we argue that the time between\ncatastrophes, where the microtubule shrinks to zero length, scales as\nexp(lambda). We also find the phase boundary between a growing and shrinking\nmicrotubule.",
    "arxiv_id": "q-bio/0703032",
    "authors": [
      "T. Antal",
      "P. L. Krapivsky",
      "S. Redner"
    ],
    "categories": [
      "q-bio.QM",
      "cond-mat.stat-mech",
      "physics.bio-ph",
      "q-bio.BM"
    ],
    "doi": "10.1088/1742-5468/2007/05/L05004",
    "journal_ref": "J. Stat. Mech. (2007) L05004",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Dynamics of Microtubule Instabilities",
    "url": "https://arxiv.org/abs/q-bio/0703032"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "802f5a83-e6f7-46eb-8a39-3e69b1edbafc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}