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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1986-11-14
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pubmed:abstractText |
The water permeability of human erythrocytes has been monitored by nuclear magnetic resonance (NMR) before and after treatment of the cells with various sulfhydryl reagents. Preincubation of the cells with N-ethylmaleimide (NEM), a non-inhibitory sulfhydryl reagent, results in a faster and more sensitive inhibition of water exchange by mercurials. The inhibition of water exchange by p-chloromercuribenzene sulfonate (PCMBS) was maximal at a binding of approximately 10 nmol PCMBS per mg protein when non-specific sulfhydryl groups are blocked by NEM. Inhibition by PCMBS has been correlated with the binding of 203Hg to erythrocyte membrane proteins. A significant binding of label to band 3 and the polypeptides in band 4.5 occurs, with approximately 1 mol of mercurial bound per mol of protein. Inhibition of water transport by sulfhydryl reagents does not induce major morphological changes in the cells as assessed by freeze-fracture and scanning electron microscopy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0171-9335
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
41
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
252-62
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3019699-4-Chloromercuribenzenesulfonate,
pubmed-meshheading:3019699-Biological Transport,
pubmed-meshheading:3019699-Cell Membrane Permeability,
pubmed-meshheading:3019699-Diffusion,
pubmed-meshheading:3019699-Erythrocyte Membrane,
pubmed-meshheading:3019699-Erythrocytes,
pubmed-meshheading:3019699-Freeze Etching,
pubmed-meshheading:3019699-Humans,
pubmed-meshheading:3019699-Magnetic Resonance Spectroscopy,
pubmed-meshheading:3019699-Microscopy, Electron,
pubmed-meshheading:3019699-Microscopy, Electron, Scanning
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pubmed:year |
1986
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pubmed:articleTitle |
Water permeability in human erythrocytes: identification of membrane proteins involved in water transport.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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