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Free energy of a potassium ion in a model of the channel formed by an amphipathic leucine-serine peptide.

Abstract:

We use molecular dynamics simulations to investigate the position-dependent free energy of a potassium ion in a model of an ion channel formed by the synthetic amphipathic leucine-serine peptide, LS3. The channel model is a parallel bundle of six LS3 helices around which are packed 146 methane-like spheres in order to mimic a membrane. At either end of and within the channel are 1051 water molecules, plus four ions (two potassium and two chloride). The free energy of a potassium ion in the ch...

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Publication status:
Published

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Publisher copy:
10.1007/s00249-002-0206-6

Authors


Sansom, MS More by this author
Journal:
European biophysics journal : EBJ
Volume:
31
Issue:
3
Pages:
198-206
Publication date:
2002-06-05
DOI:
EISSN:
1432-1017
ISSN:
0175-7571
URN:
uuid:acff2f1a-a014-457a-9c32-7b7c22546fb6
Source identifiers:
100765
Local pid:
pubs:100765

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