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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1989-11-28
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pubmed:abstractText |
Golgi membrane vesicles can be easily and very rapidly (within 10 min.) loaded with solutions of desired composition by centrifugation of the vesicles at high g force in an air-driven ultracentrifuge and subsequent resuspension of the vesicle pellet. This centrifugal/mechanical loading procedure does not destroy the integrity of these vesicles, as demonstrated by the ability of loaded vesicles to (i) retain their contents, (ii) maintain a K+ gradient when loaded with K+ ions, and (iii) exchange internal UMP for external [3H]UMP when loaded with UMP. When radiolabeled solutes are loaded into vesicles, the displaced internal volume can be measured using a rapid filtration assay. This simple and rapid technique of replacing the intravesicular contents of Golgi membrane vesicles should prove useful in studying transport across this membrane and may have a variety of other applications, such as intravesicular volume measurements, macromolecule and drug delivery protocols, and the study of membrane fusion events.
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pubmed:grant | |
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 |
0003-2697
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
180
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
216-21
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2817351-Animals,
pubmed-meshheading:2817351-Biological Transport,
pubmed-meshheading:2817351-Golgi Apparatus,
pubmed-meshheading:2817351-Intracellular Membranes,
pubmed-meshheading:2817351-Liver,
pubmed-meshheading:2817351-Osmotic Pressure,
pubmed-meshheading:2817351-Rats,
pubmed-meshheading:2817351-Ultracentrifugation,
pubmed-meshheading:2817351-Uridine Monophosphate
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pubmed:year |
1989
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pubmed:articleTitle |
A method for replacing intravesicular contents of Golgi vesicles using an air-driven ultracentrifuge.
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pubmed:affiliation |
Department of Pharmacology, Yale University School of Medicine, New Haven, Connecticut 06510.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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