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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1983-7-15
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pubmed:abstractText |
A mechanism is proposed whereby a proton gradient along a membrane-spanning alpha-helix is coupled to small changes in the torsional angles around the alpha-helix peptide bonds. Small concerted changes in the torsional angles are coupled to a change in the unit twist of the alpha-helix; a change in the unit twist is coupled to a change in the crossing angle between neighbouring alpha-helices; and a change in the crossing angle is coupled to a change in the size and shape of an assembly of alpha-helices. Following this logical linkage in one direction shows how a proton gradient could induce a pumping motion in an assembly of alpha-helices; following it in the other direction shows how motion in an assembly of alpha-helices could pump protons.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
May
|
pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
30
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pubmed:volume |
156
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6303848-Biological Transport,
pubmed-meshheading:6303848-Hydrogen Bonding,
pubmed-meshheading:6303848-Membrane Proteins,
pubmed-meshheading:6303848-Membranes,
pubmed-meshheading:6303848-Models, Biological,
pubmed-meshheading:6303848-Protein Conformation,
pubmed-meshheading:6303848-Protons
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pubmed:year |
1983
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pubmed:articleTitle |
Proton currents and protein motion in membranes.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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