dorsal/arxiv
View SchemaBi-Phasic Vesicles: instability induced by adsorption of proteins
| Authors | Jean-Marc Allain, Martine Ben Amar |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0312028 |
| URL | https://arxiv.org/abs/q-bio/0312028 |
| DOI | 10.1016/j.physa.2003.12.058 |
Abstract
The recent discovery of a lateral organization in cell membranes due to small structures called 'rafts' has motivated a lot of biological and physico-chemical studies. A new experiment on a model system has shown a spectacular budding process with the expulsion of one or two rafts when one introduces proteins on the membrane. In this paper, we give a physical interpretation of the budding of the raft phase. An approach based on the energy of the system including the presence of proteins is used to derive a shape equation and to study possible instabilities. This model shows two different situations which are strongly dependent on the nature of the proteins: a regime of easy budding when the proteins are strongly coupled to the membrane and a regime of difficult budding.
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"abstract": "The recent discovery of a lateral organization in cell membranes due to small\nstructures called \u0027rafts\u0027 has motivated a lot of biological and\nphysico-chemical studies. A new experiment on a model system has shown a\nspectacular budding process with the expulsion of one or two rafts when one\nintroduces proteins on the membrane. In this paper, we give a physical\ninterpretation of the budding of the raft phase. An approach based on the\nenergy of the system including the presence of proteins is used to derive a\nshape equation and to study possible instabilities. This model shows two\ndifferent situations which are strongly dependent on the nature of the\nproteins: a regime of easy budding when the proteins are strongly coupled to\nthe membrane and a regime of difficult budding.",
"arxiv_id": "q-bio/0312028",
"authors": [
"Jean-Marc Allain",
"Martine Ben Amar"
],
"categories": [
"q-bio.SC"
],
"doi": "10.1016/j.physa.2003.12.058",
"title": "Bi-Phasic Vesicles: instability induced by adsorption of proteins",
"url": "https://arxiv.org/abs/q-bio/0312028"
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