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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
4
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pubmed:dateCreated |
2011-1-28
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pubmed:abstractText |
SR proteins are well known to promote exon inclusion in regulated splicing through exonic splicing enhancers. SR proteins have also been reported to cause exon skipping, but little is known about the mechanism. We previously characterized SRSF1 (SF2/ASF)-dependent exon skipping of the CaMKII? gene during heart remodeling. By using mouse embryo fibroblasts derived from conditional SR protein knockout mice, we now show that SR protein-induced exon skipping depends on their prevalent actions on a flanking constitutive exon and requires collaboration of more than one SR protein. These findings, coupled with other established rules for SR proteins, provide a theoretical framework to understand the complex effect of SR protein-regulated splicing in mammalian cells. We further demonstrate that heart-specific CaMKII? splicing can be reconstituted in fibroblasts by downregulating SR proteins and upregulating a RBFOX protein and that SR protein overexpression impairs regulated CaMKII? splicing and neuronal differentiation in P19 cells, illustrating that SR protein-dependent exon skipping may constitute a key strategy for synergism with other splicing regulators in establishing tissue-specific alternative splicing critical for cell differentiation programs.
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pubmed:grant |
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pubmed:commentsCorrections |
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http://linkedlifedata.com/resource/pubmed/commentcorrection/21135118-9858550
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
1098-5549
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pubmed:author |
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pubmed:issnType |
Electronic
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
793-802
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pubmed:dateRevised |
2011-8-3
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pubmed:meshHeading |
pubmed-meshheading:21135118-Alternative Splicing,
pubmed-meshheading:21135118-Animals,
pubmed-meshheading:21135118-Base Sequence,
pubmed-meshheading:21135118-Calcium-Calmodulin-Dependent Protein Kinase Type 2,
pubmed-meshheading:21135118-Cell Differentiation,
pubmed-meshheading:21135118-Cells, Cultured,
pubmed-meshheading:21135118-Exons,
pubmed-meshheading:21135118-Mice,
pubmed-meshheading:21135118-Mice, Knockout,
pubmed-meshheading:21135118-Models, Biological,
pubmed-meshheading:21135118-Mutagenesis,
pubmed-meshheading:21135118-Neurons,
pubmed-meshheading:21135118-Nuclear Proteins,
pubmed-meshheading:21135118-RNA-Binding Proteins,
pubmed-meshheading:21135118-Recombinant Proteins
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pubmed:year |
2011
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pubmed:articleTitle |
SR proteins induce alternative exon skipping through their activities on the flanking constitutive exons.
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pubmed:affiliation |
Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093-0651, USA.
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pubmed:publicationType |
Journal Article
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