Source:http://linkedlifedata.com/resource/pubmed/id/21457648
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2011-4-4
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pubmed:abstractText |
The essential role of MCM 2-7 proteins in the initiation of DNA replication in all eukaryotes is well known. Their role in replication elongation is supported by numerous studies, but there is still a knowledge gap in this respect. Even though biochemical studies have established an association of MCM proteins with replication forks, previous immunofluorescence studies in mammalian cells have suggested that MCM 2-7 proteins are displaced after replication initiation from sites of DNA replication. Therefore, we used a robust statistical method to more precisely analyse immunofluorescence localization of MCM 2 proteins with respect to the DNA replication foci. We show that despite the predominantly different localization of MCM 2 and replication signals, there is still a small but significant fraction of MCM 2 proteins that co-localize with DNA replication foci during most of S phase. The fluorescence localization of the MCM 2 proteins and DNA replication may thus reflect an active function of MCM 2 proteins associated with the replication foci and partially explain one facet of the "MCM paradox".
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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:issn |
0015-5500
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
57
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3-11
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pubmed:meshHeading |
pubmed-meshheading:21457648-Cell Cycle Proteins,
pubmed-meshheading:21457648-Cell Nucleus,
pubmed-meshheading:21457648-Chromatin,
pubmed-meshheading:21457648-Fluorescent Antibody Technique,
pubmed-meshheading:21457648-HeLa Cells,
pubmed-meshheading:21457648-Humans,
pubmed-meshheading:21457648-Image Processing, Computer-Assisted,
pubmed-meshheading:21457648-Microscopy, Confocal,
pubmed-meshheading:21457648-Nuclear Proteins,
pubmed-meshheading:21457648-Replication Origin,
pubmed-meshheading:21457648-S Phase,
pubmed-meshheading:21457648-Statistics, Nonparametric
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pubmed:year |
2011
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pubmed:articleTitle |
A fraction of MCM 2 proteins remain associated with replication foci during a major part of S phase.
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pubmed:affiliation |
Max Delbrück Center for Molecular Medicine, Berlin, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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