dorsal/arxiv
View SchemaGetting DNA twist rigidity from single molecule experiments
| Authors | Sebastien Neukirch |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0402036 |
| URL | https://arxiv.org/abs/q-bio/0402036 |
| DOI | 10.1103/PhysRevLett.93.198107 |
Abstract
We use an elastic rod model with contact to study the extension versus rotation diagrams of single supercoiled DNA molecules. We reproduce quantitatively the supercoiling response of overtwisted DNA and, using experimental data, we get an estimation of the effective supercoiling radius and of the twist rigidity of B-DNA. We find that unlike the bending rigidity, the twist rigidity of DNA seems to vary widely with the nature and concentration of the salt buffer in which it is immerged.
{
"annotation_id": "36a28334-4da7-4964-aa82-600cfcf67da1",
"date_created": "2026-03-02T18:01:32.184000Z",
"date_modified": "2026-03-02T18:01:32.184000Z",
"file_hash": "60f0a72c755f52df399befb55c833d32a545ad7d9f6109fffb126fb7e017c41d",
"private": false,
"record": {
"abstract": "We use an elastic rod model with contact to study the extension versus\nrotation diagrams of single supercoiled DNA molecules. We reproduce\nquantitatively the supercoiling response of overtwisted DNA and, using\nexperimental data, we get an estimation of the effective supercoiling radius\nand of the twist rigidity of B-DNA. We find that unlike the bending rigidity,\nthe twist rigidity of DNA seems to vary widely with the nature and\nconcentration of the salt buffer in which it is immerged.",
"arxiv_id": "q-bio/0402036",
"authors": [
"Sebastien Neukirch"
],
"categories": [
"q-bio.BM",
"cond-mat.dis-nn",
"cond-mat.stat-mech"
],
"doi": "10.1103/PhysRevLett.93.198107",
"title": "Getting DNA twist rigidity from single molecule experiments",
"url": "https://arxiv.org/abs/q-bio/0402036"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "61702cd8-a303-4581-9c2a-23ef2089baa4",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}