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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1993-11-4
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pubmed:abstractText |
A plasmid vector that serves as a dominant marker for isolating transformed animals in Caenorhabditis elegans has been constructed as a translational fusion of the C. elegans act-4 gene (encoding actin) and the Escherichia coli lacZ gene. This gene fusion can be used as a marker in transformation rescue experiments in any fertile strain of C. elegans. Progeny of animals injected with the act-4::lacZ fusion vector are stained histochemically with XGal, and transformants turn blue. The internal eggs of stained animals remain viable, allowing recovery of the transformed strain. When the act-4::lacZ vector is co-injected with an unselected plasmid with which it shares some sequence homology, most transformants that are recovered by screening for expression of the act-4::lacZ fusion contain both plasmids. Production of active beta Gal in animals transformed with the act-4::lacZ gene fusions appears to be limited to certain tissues. A chimeric gene that contains the 5' and 3' regions of act-4 is expressed strongly in the body-wall muscles, vulval muscles, and spermathecae. Addition of the internal portion of act-4, including the protein-coding region and introns, to this chimeric gene leads to additional lacZ expression in the pharynx.
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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 |
Sep
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pubmed:issn |
0378-1119
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
131
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pubmed:geneSymbol |
act-4,
hsp16,
lacZ
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
167-73
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8406009-Actins,
pubmed-meshheading:8406009-Animals,
pubmed-meshheading:8406009-Caenorhabditis elegans,
pubmed-meshheading:8406009-Escherichia coli,
pubmed-meshheading:8406009-Genetic Markers,
pubmed-meshheading:8406009-Lac Operon,
pubmed-meshheading:8406009-Plasmids,
pubmed-meshheading:8406009-Promoter Regions, Genetic,
pubmed-meshheading:8406009-Recombinant Fusion Proteins,
pubmed-meshheading:8406009-Transformation, Genetic
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pubmed:year |
1993
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pubmed:articleTitle |
A Caenorhabditis elegans act-4::lacZ fusion: use as a transformation marker and analysis of tissue-specific expression.
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pubmed:affiliation |
Department of Genetics and Cell Biology, University of Minnesota, St. Paul 55108.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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