dorsal/arxiv
View SchemaElastic properties of grafted microtubules
| Authors | Francesco Pampaloni, Gianluca Lattanzi, Alexandr Jonáš, Thomas Surrey, Erwin Frey, Ernst-Ludwig Florin |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0503037 |
| URL | https://arxiv.org/abs/q-bio/0503037 |
| DOI | 10.1073/pnas.0603931103 |
| Journal | PNAS 103, 10248 (2006) |
Abstract
We use single-particle tracking to study the elastic properties of single microtubules grafted to a substrate. Thermal fluctuations of the free microtubule's end are recorded, in order to measure position distribution functions from which we calculate the persistence length of microtubules with contour lengths between 2.6 and 48 micrometers. We find the persistence length to vary by more than a factor of 20 over the total range of contour lengths. Our results support the hypothesis that shearing between protofilaments contributes significantly to the mechanics of microtubules.
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"abstract": "We use single-particle tracking to study the elastic properties of single\nmicrotubules grafted to a substrate. Thermal fluctuations of the free\nmicrotubule\u0027s end are recorded, in order to measure position distribution\nfunctions from which we calculate the persistence length of microtubules with\ncontour lengths between 2.6 and 48 micrometers. We find the persistence length\nto vary by more than a factor of 20 over the total range of contour lengths.\nOur results support the hypothesis that shearing between protofilaments\ncontributes significantly to the mechanics of microtubules.",
"arxiv_id": "q-bio/0503037",
"authors": [
"Francesco Pampaloni",
"Gianluca Lattanzi",
"Alexandr Jon\u00e1\u0161",
"Thomas Surrey",
"Erwin Frey",
"Ernst-Ludwig Florin"
],
"categories": [
"q-bio.BM"
],
"doi": "10.1073/pnas.0603931103",
"journal_ref": "PNAS 103, 10248 (2006)",
"title": "Elastic properties of grafted microtubules",
"url": "https://arxiv.org/abs/q-bio/0503037"
},
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