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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la103655x
|2 doi
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|a pubmed24n0679.xml
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|a eng
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| 100 |
1 |
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|a Beck, Roy
|e verfasserin
|4 aut
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| 245 |
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|a Unconventional salt trend from soft to stiff in single neurofilament biopolymers
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|c 2010
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 17.03.2011
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a We present persistence length measurements on neurofilaments (NFs), an intermediate filament with protruding side arms, of the neuronal cytoskeleton. Tapping mode atomic force microscopy enabled us to visualize and trace at subpixel resolution photoimmobilized NFs, assembled at various subunit protein ratios, thereby modifying the side-arm length and chain density charge distribution. We show that specific polyampholyte sequences of the side arms can form salt-switchable intrafilament attractions that compete with the net electrostatic and steric repulsion and can reduce the total persistence length by half. The results are in agreement with present X-ray and microscopy data yet present a theoretical challenge for polyampholyte interchain interactions
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Biopolymers
|2 NLM
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|a Salts
|2 NLM
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| 700 |
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|a Deek, Joanna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Choi, Myung Chul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ikawa, Taiji
|e verfasserin
|4 aut
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| 700 |
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|a Watanabe, Osamu
|e verfasserin
|4 aut
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| 700 |
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|a Frey, Erwin
|e verfasserin
|4 aut
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|a Pincus, Philip
|e verfasserin
|4 aut
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|a Safinya, Cyrus R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 24 vom: 21. Dez., Seite 18595-9
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|x 1520-5827
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|g volume:26
|g year:2010
|g number:24
|g day:21
|g month:12
|g pages:18595-9
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|u http://dx.doi.org/10.1021/la103655x
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